{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T01:50:16Z","timestamp":1777600216832,"version":"3.51.4"},"publisher-location":"Singapore","reference-count":201,"publisher":"Springer Singapore","isbn-type":[{"value":"9789811547027","type":"print"},{"value":"9789811547027","type":"electronic"}],"license":[{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021]]},"DOI":"10.1007\/978-981-15-4702-7_29-1","type":"book-chapter","created":{"date-parts":[[2021,10,23]],"date-time":"2021-10-23T10:02:34Z","timestamp":1634983354000},"page":"1-37","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Testing the Nature of Dark Compact Objects with Gravitational Waves"],"prefix":"10.1007","author":[{"given":"Elisa","family":"Maggio","sequence":"first","affiliation":[]},{"given":"Paolo","family":"Pani","sequence":"additional","affiliation":[]},{"given":"Guilherme","family":"Raposo","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2021,10,24]]},"reference":[{"key":"29-1_CR1","doi-asserted-by":"publisher","unstructured":"Abbott B et al (2016) Tests of general relativity with GW150914. Phys Rev Lett 116(22):221101. https:\/\/doi.org\/10.1103\/PhysRevLett.116.221101, [Erratum: (2018) Phys Rev Lett 121:129902], 1602.03841","DOI":"10.1103\/PhysRevLett.116.221101"},{"key":"29-1_CR2","doi-asserted-by":"publisher","unstructured":"Abbott B et al (2019) Tests of general relativity with the binary black hole signals from the LIGO-Virgo catalog GWTC-1. Phys Rev D 100(10):104036. https:\/\/doi.org\/10.1103\/PhysRevD.100.104036, 1903.04467","DOI":"10.1103\/PhysRevD.100.104036"},{"key":"29-1_CR3","doi-asserted-by":"publisher","unstructured":"Abbott BP et al (2019) GWTC-1: a gravitational-wave transient catalog of compact binary mergers observed by LIGO and Virgo during the first and second observing runs. Phys Rev X9(3):031040. https:\/\/doi.org\/10.1103\/PhysRevX.9.031040, 1811.12907","DOI":"10.1103\/PhysRevX.9.031040"},{"key":"29-1_CR4","doi-asserted-by":"publisher","unstructured":"Abbott R et al (2020) GW190521: a binary black hole merger with a total mass of 150 M\u2299. Phys Rev Lett 125(10):101102. https:\/\/doi.org\/10.1103\/PhysRevLett.125.101102, 2009.01075","DOI":"10.1103\/PhysRevLett.125.101102"},{"key":"29-1_CR5","doi-asserted-by":"crossref","unstructured":"Abbott R et al (2020) GW190814: gravitational waves from the coalescence of a 23 solar mass black hole with a 2.6 solar mass compact object. Astrophys J Lett 896(2):L44. https:\/\/doi.org\/10.3847\/2041-8213\/ab960f, 2006.12611","DOI":"10.3847\/2041-8213\/ab960f"},{"key":"29-1_CR6","doi-asserted-by":"crossref","unstructured":"Abbott R et al (2020) Properties and astrophysical implications of the 150 M\u2299 binary black hole merger GW190521. Astrophys J 900(1):L13. https:\/\/doi.org\/10.3847\/2041-8213\/aba493, 2009.01190","DOI":"10.3847\/2041-8213\/aba493"},{"key":"29-1_CR7","unstructured":"Abbott R et al (2020) Tests of general relativity with binary black holes from the second LIGO-Virgo gravitational-wave transient catalog 2010.14529"},{"key":"29-1_CR8","doi-asserted-by":"crossref","unstructured":"Abedi J, Afshordi N (2019) Echoes from the Abyss: a highly spinning black hole remnant for the binary neutron star merger GW170817. JCAP 11:010. https:\/\/doi.org\/10.1088\/1475-7516\/2019\/11\/010, 1803.10454","DOI":"10.1088\/1475-7516\/2019\/11\/010"},{"key":"29-1_CR9","doi-asserted-by":"publisher","unstructured":"Abedi J, Dykaar H, Afshordi N (2017) Echoes from the Abyss: tentative evidence for Planck-scale structure at black hole horizons. Phys Rev D96(8):082004. https:\/\/doi.org\/10.1103\/PhysRevD.96.082004, 1612.00266","DOI":"10.1103\/PhysRevD.96.082004"},{"key":"29-1_CR10","doi-asserted-by":"crossref","unstructured":"Abedi J, Afshordi N, Oshita N, Wang Q (2020) Quantum black holes in the sky 2001.09553","DOI":"10.3390\/universe6030043"},{"key":"29-1_CR11","doi-asserted-by":"publisher","unstructured":"Addazi A, Marciano A, Yunes N (2019) Can we probe Planckian corrections at the horizon scale with gravitational waves? Phys Rev Lett 122(8):081301. https:\/\/doi.org\/10.1103\/PhysRevLett.122.081301, 1810.10417","DOI":"10.1103\/PhysRevLett.122.081301"},{"key":"29-1_CR12","doi-asserted-by":"crossref","unstructured":"Alcubierre M, Barranco J, Bernal A, Degollado JC, Diez-Tejedor A, Megevand M, Nunez D, Sarbach O (2018) \u2113-Boson stars. Class Quant Grav 35(19):19LT01. https:\/\/doi.org\/10.1088\/1361-6382\/aadcb6, 1805.11488","DOI":"10.1088\/1361-6382\/aadcb6"},{"key":"29-1_CR13","doi-asserted-by":"publisher","unstructured":"Almheiri A, Marolf D, Polchinski J, Sully J (2013) Black holes: complementarity or firewalls? JHEP 02:062. https:\/\/doi.org\/10.1007\/JHEP02(2013)062, 1207.3123","DOI":"10.1007\/JHEP02(2013)062"},{"key":"29-1_CR14","doi-asserted-by":"publisher","unstructured":"Andrade Z (2001) Trapped and excited W-modes of stars with a phase transition and R greater than or equal to 5M. Phys Rev D 63:124002. https:\/\/doi.org\/10.1103\/PhysRevD.63.124002, gr-qc\/0103062","DOI":"10.1103\/PhysRevD.63.124002"},{"key":"29-1_CR15","doi-asserted-by":"publisher","unstructured":"Andrade Z, Price RH (1999) Excitation of the odd parity quasinormal modes of compact objects. Phys Rev D 60:104037. https:\/\/doi.org\/10.1103\/PhysRevD.60.104037, gr-qc\/9902062","DOI":"10.1103\/PhysRevD.60.104037"},{"key":"29-1_CR16","first-page":"00786","volume":"1702","author":"H Audley","year":"2017","unstructured":"Audley H, Babak S, Baker J, Barausse E, Bender P, Berti E, Binetruy P, Born M, Bortoluzzi D, Camp J, Caprini C, Cardoso V, Colpi M, Conklin J, Cornish N, Cutler C et al (2017) Laser interferometer space antenna. ArXiv e-prints 1702.00786","journal-title":"ArXiv e-prints"},{"key":"29-1_CR17","doi-asserted-by":"publisher","unstructured":"Babak S, Gair J, Sesana A, Barausse E, Sopuerta CF, Berry CPL, Berti E, Amaro-Seoane P, Petiteau A, Klein A (2017) Science with the space-based interferometer LISA. V: extreme mass-ratio inspirals. Phys Rev D95(10):103012. https:\/\/doi.org\/10.1103\/PhysRevD.95.103012, 1703.09722","DOI":"10.1103\/PhysRevD.95.103012"},{"key":"29-1_CR18","doi-asserted-by":"crossref","unstructured":"Balasubramanian V, de Boer J, El-Showk S, Messamah I (2008) Black holes as effective geometries. Class Quant Grav 25:214004. https:\/\/doi.org\/10.1088\/0264-9381\/25\/21\/214004, 0811.0263","DOI":"10.1088\/0264-9381\/25\/21\/214004"},{"key":"29-1_CR19","doi-asserted-by":"publisher","unstructured":"Barack L, Cutler C (2007) Using LISA EMRI sources to test off-Kerr deviations in the geometry of massive black holes. Phys Rev D 75:042003. https:\/\/doi.org\/10.1103\/PhysRevD.75.042003, gr-qc\/0612029","DOI":"10.1103\/PhysRevD.75.042003"},{"key":"29-1_CR20","doi-asserted-by":"crossref","unstructured":"Barausse E, Brito R, Cardoso V, Dvorkin I, Pani P (2018) The stochastic gravitational-wave background in the absence of horizons. Class Quant Grav 35(20):20LT01. https:\/\/doi.org\/10.1088\/1361-6382\/aae1de, 1805.08229","DOI":"10.1088\/1361-6382\/aae1de"},{"key":"29-1_CR21","doi-asserted-by":"crossref","unstructured":"Bena I, Mayerson DR (2020) Black holes lessons from multipole ratios 2007.09152","DOI":"10.1007\/JHEP03(2021)114"},{"key":"29-1_CR22","doi-asserted-by":"publisher","unstructured":"Bena I, Mayerson DR (2020) Multipole ratios: a new window into black holes. Phys Rev Lett 125(22):22. https:\/\/doi.org\/10.1103\/PhysRevLett.125.221602, 2006.10750","DOI":"10.1103\/PhysRevLett.125.221602"},{"key":"29-1_CR23","doi-asserted-by":"crossref","unstructured":"Bena I, Warner NP (2008) Black holes, black rings and their microstates. Lect Notes Phys 755:1\u201392. https:\/\/doi.org\/10.1007\/978-3-540-79523-0_1, hep-th\/0701216","DOI":"10.1007\/978-3-540-79523-0_1"},{"key":"29-1_CR24","unstructured":"Bena I, Warner NP (2013) Resolving the structure of black holes: philosophizing with a hammer 1311.4538"},{"key":"29-1_CR25","doi-asserted-by":"publisher","unstructured":"Bena I, Heidmann P, Monten R, Warner NP (2019) Thermal decay without information loss in horizonless microstate geometries. SciPost Phys 7(5):063. https:\/\/doi.org\/10.21468\/SciPostPhys.7.5.063, 1905.05194","DOI":"10.21468\/SciPostPhys.7.5.063"},{"key":"29-1_CR26","doi-asserted-by":"publisher","unstructured":"Bena I, Martinec EJ, Walker R, Warner NP (2019) Early scrambling and capped BTZ geometries. JHEP 04:126. https:\/\/doi.org\/10.1007\/JHEP04(2019)126, 1812.05110","DOI":"10.1007\/JHEP04(2019)126"},{"key":"29-1_CR27","doi-asserted-by":"publisher","unstructured":"Bernuzzi S, Nagar A, Zenginoglu A (2012) Horizon-absorption effects in coalescing black-hole binaries: an effective-one-body study of the non-spinning case. Phys Rev D 86:104038. https:\/\/doi.org\/10.1103\/PhysRevD.86.104038, 1207.0769","DOI":"10.1103\/PhysRevD.86.104038"},{"key":"29-1_CR28","doi-asserted-by":"crossref","unstructured":"Berti E, Cardoso V, Starinets AO (2009) Quasinormal modes of black holes and black branes. Class Quant Grav 26:163001. https:\/\/doi.org\/10.1088\/0264-9381\/26\/16\/163001, 0905.2975","DOI":"10.1088\/0264-9381\/26\/16\/163001"},{"key":"29-1_CR29","doi-asserted-by":"publisher","unstructured":"Berti E, Sesana A, Barausse E, Cardoso V, Belczynski K (2016) Spectroscopy of Kerr black holes with Earth- and space-based interferometers. Phys Rev Lett 117(10):101102. https:\/\/doi.org\/10.1103\/PhysRevLett.117.101102, 1605.09286","DOI":"10.1103\/PhysRevLett.117.101102"},{"key":"29-1_CR30","doi-asserted-by":"publisher","unstructured":"Bezares M, Palenzuela C, Bona C (2017) Final fate of compact boson star mergers. Phys Rev D 95(12):124005. https:\/\/doi.org\/10.1103\/PhysRevD.95.124005, 1705.01071","DOI":"10.1103\/PhysRevD.95.124005"},{"key":"29-1_CR31","doi-asserted-by":"publisher","unstructured":"Bhagwat S, Forteza XJ, Pani P, Ferrari V (2020) Ringdown overtones, black hole spectroscopy, and no-hair theorem tests. Phys Rev D 101(4):044033. https:\/\/doi.org\/10.1103\/PhysRevD.101.044033, 1910.08708","DOI":"10.1103\/PhysRevD.101.044033"},{"key":"29-1_CR32","doi-asserted-by":"publisher","unstructured":"Bianchi M, Consoli D, Morales J (2018) Probing fuzzballs with particles, waves and strings. JHEP 06:157. https:\/\/doi.org\/10.1007\/JHEP06(2018)157, 1711.10287","DOI":"10.1007\/JHEP06(2018)157"},{"key":"29-1_CR33","doi-asserted-by":"publisher","unstructured":"Bianchi M, Consoli D, Grillo A, Morales JF (2019) The dark side of fuzzball geometries. JHEP 05:126. https:\/\/doi.org\/10.1007\/JHEP05(2019)126, 1811.02397","DOI":"10.1007\/JHEP05(2019)126"},{"key":"29-1_CR34","doi-asserted-by":"publisher","unstructured":"Bianchi M, Consoli D, Grillo A, Morales JF, Pani P, Raposo G (2020) Distinguishing fuzzballs from black holes through their multipolar structure. Phys Rev Lett 125(22):221601. https:\/\/doi.org\/10.1103\/PhysRevLett.125.221601, 2007.01743","DOI":"10.1103\/PhysRevLett.125.221601"},{"key":"29-1_CR35","doi-asserted-by":"publisher","unstructured":"Bianchi M, Grillo A, Morales JF (2020) Chaos at the rim of black hole and fuzzball shadows. JHEP 05:078. https:\/\/doi.org\/10.1007\/JHEP05(2020)078, 2002.05574","DOI":"10.1007\/JHEP05(2020)078"},{"key":"29-1_CR36","doi-asserted-by":"publisher","unstructured":"Bianchi M, Consoli D, Grillo A, Morales JF, Pani P, Raposo G (2021) The multipolar structure of fuzzballs. JHEP 01:003. https:\/\/doi.org\/10.1007\/JHEP01(2021)003, 2008.01445","DOI":"10.1007\/JHEP01(2021)003"},{"key":"29-1_CR37","doi-asserted-by":"publisher","unstructured":"Binnington T, Poisson E (2009) Relativistic theory of tidal Love numbers. Phys Rev D 80:084018. https:\/\/doi.org\/10.1103\/PhysRevD.80.084018, 0906.1366","DOI":"10.1103\/PhysRevD.80.084018"},{"key":"29-1_CR38","doi-asserted-by":"publisher","first-page":"657","DOI":"10.1086\/152760","volume":"188","author":"RL Bowers","year":"1974","unstructured":"Bowers RL, Liang EPT (1974) Anisotropic spheres in general relativity. Astrophys J 188:657. https:\/\/doi.org\/10.1086\/152760","journal-title":"Astrophys J"},{"key":"29-1_CR39","doi-asserted-by":"crossref","unstructured":"Brito R, Cardoso V, Pani P (2015) Superradiance: energy extraction, black-hole bombs and implications for astrophysics and particle physics, vol 906. Springer. https:\/\/doi.org\/10.1007\/978-3-319-19000-6, 1501.06570","DOI":"10.1007\/978-3-319-19000-6"},{"key":"29-1_CR40","doi-asserted-by":"crossref","unstructured":"Brito R, Cardoso V, Herdeiro CAR, Radu E (2016) Proca stars: gravitating Bose Einstein condensates of massive spin 1 particles. Phys Lett B752:291\u2013295. https:\/\/doi.org\/10.1016\/j.physletb.2015.11.051, 1508.05395","DOI":"10.1016\/j.physletb.2015.11.051"},{"key":"29-1_CR41","doi-asserted-by":"publisher","first-page":"1027","DOI":"10.1103\/PhysRev.116.1027","volume":"116","author":"HA Buchdahl","year":"1959","unstructured":"Buchdahl HA (1959) General relativistic fluid spheres. Phys Rev 116:1027. https:\/\/doi.org\/10.1103\/PhysRev.116.1027","journal-title":"Phys Rev"},{"key":"29-1_CR42","doi-asserted-by":"publisher","unstructured":"Burgess CP, Plestid R, Rummel M (2018) Effective field theory of black hole echoes. JHEP 09:113. https:\/\/doi.org\/10.1007\/JHEP09(2018)113, 1808.00847","DOI":"10.1007\/JHEP09(2018)113"},{"key":"29-1_CR43","unstructured":"Calder\u00f3n Bustillo J, Sanchis-Gual N, Torres-Forn\u00e9 A, Font JA, Vajpeyi A, Smith R, Herdeiro C, Radu E, Leong SH (2020) The (ultra) light in the dark: a potential vector boson of 8.7\u2009\u00d7\u200910\u221213 eV from GW190521. 2009.05376"},{"key":"29-1_CR44","doi-asserted-by":"publisher","unstructured":"Carballo-Rubio R, Di Filippo F, Liberati S, Visser M (2018) Phenomenological aspects of black holes beyond general relativity. Phys Rev D98(12):124009. https:\/\/doi.org\/10.1103\/PhysRevD.98.124009, 1809.08238","DOI":"10.1103\/PhysRevD.98.124009"},{"key":"29-1_CR45","doi-asserted-by":"crossref","unstructured":"Cardoso V, Gualtieri L (2016) Testing the black hole no hair hypothesis. Class Quant Grav 33(17):174001. https:\/\/doi.org\/10.1088\/0264-9381\/33\/17\/174001, 1607.03133","DOI":"10.1088\/0264-9381\/33\/17\/174001"},{"key":"29-1_CR46","doi-asserted-by":"crossref","unstructured":"Cardoso V, Pani P (2017) Tests for the existence of black holes through gravitational wave echoes. Nat Astron 1(9):586\u2013591. https:\/\/doi.org\/10.1038\/s41550-017-0225-y, 1709.01525","DOI":"10.1038\/s41550-017-0225-y"},{"key":"29-1_CR47","doi-asserted-by":"crossref","unstructured":"Cardoso V, Pani P (2019) Testing the nature of dark compact objects: a status report. Living Rev Rel 22(1):4. https:\/\/doi.org\/10.1007\/s41114-019-0020-4, 1904.05363","DOI":"10.1007\/s41114-019-0020-4"},{"key":"29-1_CR48","doi-asserted-by":"publisher","unstructured":"Cardoso V, Pani P, Cadoni M, Cavaglia M (2008) Ergoregion instability of ultracompact astrophysical objects. Phys Rev D77:124044. https:\/\/doi.org\/10.1103\/PhysRevD.77.124044, 0709.0532","DOI":"10.1103\/PhysRevD.77.124044"},{"key":"29-1_CR49","doi-asserted-by":"crossref","unstructured":"Cardoso V, Pani P, Cadoni M, Cavaglia M (2008) Instability of hyper-compact Kerr-like objects. Class Quant Grav 25:195010. https:\/\/doi.org\/10.1088\/0264-9381\/25\/19\/195010, 0808.1615","DOI":"10.1088\/0264-9381\/25\/19\/195010"},{"key":"29-1_CR50","doi-asserted-by":"publisher","unstructured":"Cardoso V, Franzin E, Pani P (2016) Is the gravitational-wave ringdown a probe of the event horizon? Phys Rev Lett 116(17):171101. https:\/\/doi.org\/10.1103\/PhysRevLett.116.171101, [Erratum: Phys Rev Lett 117:089902 (2016)], 1602.07309","DOI":"10.1103\/PhysRevLett.116.171101"},{"key":"29-1_CR51","doi-asserted-by":"publisher","unstructured":"Cardoso V, Hopper S, Macedo CFB, Palenzuela C, Pani P (2016) Gravitational-wave signatures of exotic compact objects and of quantum corrections at the horizon scale. Phys Rev D 94(8):084031. https:\/\/doi.org\/10.1103\/PhysRevD.94.084031, 1608.08637","DOI":"10.1103\/PhysRevD.94.084031"},{"key":"29-1_CR52","doi-asserted-by":"publisher","unstructured":"Cardoso V, Franzin E, Maselli A, Pani P, Raposo G (2017) Testing strong-field gravity with tidal Love numbers. Phys Rev D95(8):084014. https:\/\/doi.org\/10.1103\/PhysRevD.95.089901, https:\/\/doi.org\/10.1103\/PhysRevD.95.084014, [Addendum: Phys Rev D 95(8):089901 (2017)], 1701.01116","DOI":"10.1103\/PhysRevD.95.089901 10.1103\/PhysRevD.95.084014"},{"key":"29-1_CR53","doi-asserted-by":"publisher","unstructured":"Cardoso V, Kimura M, Maselli A, Berti E, Macedo CF, McManus R (2019) Parametrized black hole quasinormal ringdown: decoupled equations for nonrotating black holes. Phys Rev D 99(10):104077. https:\/\/doi.org\/10.1103\/PhysRevD.99.104077, 1901.01265","DOI":"10.1103\/PhysRevD.99.104077"},{"key":"29-1_CR54","doi-asserted-by":"publisher","first-page":"331","DOI":"10.1103\/PhysRevLett.26.331","volume":"26","author":"B Carter","year":"1971","unstructured":"Carter B (1971) Axisymmetric black hole has only two degrees of freedom. Phys Rev Lett 26:331\u2013333. https:\/\/doi.org\/10.1103\/PhysRevLett.26.331","journal-title":"Phys Rev Lett"},{"key":"29-1_CR55","doi-asserted-by":"crossref","unstructured":"Cattoen C, Faber T, Visser M (2005) Gravastars must have anisotropic pressures. Class Quant Grav 22:4189\u20134202. https:\/\/doi.org\/10.1088\/0264-9381\/22\/20\/002, gr-qc\/0505137","DOI":"10.1088\/0264-9381\/22\/20\/002"},{"key":"29-1_CR56","doi-asserted-by":"publisher","first-page":"441","DOI":"10.1098\/rspa.1975.0112","volume":"344","author":"S Chandrasekhar","year":"1975","unstructured":"Chandrasekhar S, Detweiler SL (1975) The quasi-normal modes of the Schwarzschild black hole. Proc R Soc Lond A 344:441\u2013452","journal-title":"Proc R Soc Lond A"},{"key":"29-1_CR57","doi-asserted-by":"crossref","unstructured":"Chia HS (2020) Tidal deformation and dissipation of rotating black holes. 2010.07300","DOI":"10.1103\/PhysRevD.104.024013"},{"key":"29-1_CR58","doi-asserted-by":"publisher","unstructured":"Chirenti CB, Rezzolla L (2008) On the ergoregion instability in rotating gravastars. Phys Rev D 78:084011. https:\/\/doi.org\/10.1103\/PhysRevD.78.084011, 0808.4080","DOI":"10.1103\/PhysRevD.78.084011"},{"key":"29-1_CR59","doi-asserted-by":"publisher","unstructured":"Chua AJ, Hee S, Handley WJ, Higson E, Moore CJ, Gair JR, Hobson MP, Lasenby AN (2018) Towards a framework for testing general relativity with extreme-mass-ratio-inspiral observations. Mon Not R Astron Soc 478(1):28\u201340. https:\/\/doi.org\/10.1093\/mnras\/sty1079, 1803.10210","DOI":"10.1093\/mnras\/sty1079"},{"key":"29-1_CR60","doi-asserted-by":"publisher","unstructured":"Chua AJK, Korsakova N, Moore CJ, Gair JR, Babak S (2020) Gaussian processes for the interpolation and marginalization of waveform error in extreme-mass-ratio-inspiral parameter estimation. Phys Rev D101(4):044027. https:\/\/doi.org\/10.1103\/PhysRevD.101.044027, 1912.11543","DOI":"10.1103\/PhysRevD.101.044027"},{"key":"29-1_CR61","doi-asserted-by":"publisher","first-page":"2485","DOI":"10.1103\/PhysRevLett.57.2485","volume":"57","author":"M Colpi","year":"1986","unstructured":"Colpi M, Shapiro S, Wasserman I (1986) Boson stars: gravitational equilibria of selfinteracting scalar fields. Phys Rev Lett 57:2485\u20132488. https:\/\/doi.org\/10.1103\/PhysRevLett.57.2485","journal-title":"Phys Rev Lett"},{"key":"29-1_CR62","first-page":"211","volume":"364","author":"N Comins","year":"1717","unstructured":"Comins N, Schutz BF (1978) On the ergoregion instability. Proc R Soc Lond Ser A, Math Phys Sci 364(1717):211\u2013226. http:\/\/www.jstor.org\/stable\/79759","journal-title":"Math Phys Sci"},{"key":"29-1_CR63","doi-asserted-by":"publisher","unstructured":"Conklin RS, Holdom B, Ren J (2018) Gravitational wave echoes through new windows. Phys Rev D98(4):044021. https:\/\/doi.org\/10.1103\/PhysRevD.98.044021, 1712.06517","DOI":"10.1103\/PhysRevD.98.044021"},{"key":"29-1_CR64","volume-title":"LISA data challenge working group","author":"L Consortium","year":"2019","unstructured":"Consortium L (2019) LISA data challenge working group. LISA data challenges. https:\/\/lisa-ldc.lal.in2p3.fr"},{"key":"29-1_CR65","doi-asserted-by":"publisher","unstructured":"Correia MR, Cardoso V (2018) Characterization of echoes: a Dyson-series representation of individual pulses. Phys Rev D97(8):084030. https:\/\/doi.org\/10.1103\/PhysRevD.97.084030, 1802.07735","DOI":"10.1103\/PhysRevD.97.084030"},{"key":"29-1_CR66","unstructured":"Damour T (1982) Surface effects in black-hole physics. In: Marcel grossmann meeting: general relativity, p 587"},{"key":"29-1_CR67","doi-asserted-by":"publisher","unstructured":"Damour T, Nagar A (2009) Relativistic tidal properties of neutron stars. Phys Rev D 80:084035. https:\/\/doi.org\/10.1103\/PhysRevD.80.084035, 0906.0096","DOI":"10.1103\/PhysRevD.80.084035"},{"key":"29-1_CR68","first-page":"1","volume":"25","author":"G Darmois","year":"1927","unstructured":"Darmois G (1927) Les \u00e9quations de la gravitation einsteinienne. M\u00e9morial de Sciences Math\u00e9matiques fascicule 25:1\u201348","journal-title":"M\u00e9morial de Sciences Math\u00e9matiques fascicule"},{"key":"29-1_CR69","doi-asserted-by":"publisher","unstructured":"Datta S, Bose S (2019) Probing the nature of central objects in extreme-mass-ratio inspirals with gravitational waves. Phys Rev D99(8):084001. https:\/\/doi.org\/10.1103\/PhysRevD.99.084001, 1902.01723","DOI":"10.1103\/PhysRevD.99.084001"},{"key":"29-1_CR70","doi-asserted-by":"publisher","unstructured":"Datta S, Brito R, Bose S, Pani P, Hughes SA (2020) Tidal heating as a discriminator for horizons in extreme mass ratio inspirals. Phys Rev D101(4):044004. https:\/\/doi.org\/10.1103\/PhysRevD.101.044004, 1910.07841","DOI":"10.1103\/PhysRevD.101.044004"},{"key":"29-1_CR71","doi-asserted-by":"crossref","unstructured":"Destounis K, Suvorov AG, Kokkotas KD (2020) Testing spacetime symmetry through gravitational waves from extreme-mass-ratio inspirals. 2009.00028","DOI":"10.1103\/PhysRevD.102.064041"},{"key":"29-1_CR72","doi-asserted-by":"publisher","first-page":"381","DOI":"10.1098\/rspa.1977.0005","volume":"352","author":"S Detweiler","year":"1977","unstructured":"Detweiler S (1977) On resonant oscillations of a rapidly rotating black hole. Proc R Soc Lond Ser A 352:381\u2013395. https:\/\/doi.org\/10.1098\/rspa.1977.0005","journal-title":"Proc R Soc Lond Ser A"},{"key":"29-1_CR73","doi-asserted-by":"publisher","unstructured":"Du SM, Chen Y (2018) Searching for near-horizon quantum structures in the binary black-hole stochastic gravitational-wave background. Phys Rev Lett 121(5):051105. https:\/\/doi.org\/10.1103\/PhysRevLett.121.051105, 1803.10947","DOI":"10.1103\/PhysRevLett.121.051105"},{"key":"29-1_CR74","doi-asserted-by":"publisher","unstructured":"Fan XL, Chen YB (2018) Stochastic gravitational-wave background from spin loss of black holes. Phys Rev D 98(4):044020. https:\/\/doi.org\/10.1103\/PhysRevD.98.044020, 1712.00784","DOI":"10.1103\/PhysRevD.98.044020"},{"key":"29-1_CR75","doi-asserted-by":"publisher","unstructured":"Ferrari V, Kokkotas K (2000) Scattering of particles by neutron stars: time evolutions for axial perturbations. Phys Rev D 62:107504. https:\/\/doi.org\/10.1103\/PhysRevD.62.107504, gr-qc\/0008057","DOI":"10.1103\/PhysRevD.62.107504"},{"key":"29-1_CR76","doi-asserted-by":"publisher","first-page":"243","DOI":"10.1007\/BF01196933","volume":"63","author":"JL Friedman","year":"1978","unstructured":"Friedman JL (1978) Ergosphere instability. Commun Math Phys 63:243\u2013255. https:\/\/doi.org\/10.1007\/BF01196933","journal-title":"Commun Math Phys"},{"key":"29-1_CR77","doi-asserted-by":"publisher","first-page":"2580","DOI":"10.1063\/1.1665427","volume":"11","author":"RP Geroch","year":"1970","unstructured":"Geroch RP (1970) Multipole moments. II. Curved space. J Math Phys 11:2580\u20132588. https:\/\/doi.org\/10.1063\/1.1665427","journal-title":"II. Curved space. J Math Phys"},{"key":"29-1_CR78","doi-asserted-by":"crossref","unstructured":"Ghosh A, Brito R, Buonanno A (2021) Constraints on quasi-normal-mode frequencies with LIGO-Virgo binary-black-hole observations, 2104.01906","DOI":"10.1103\/PhysRevD.103.124041"},{"key":"29-1_CR79","doi-asserted-by":"publisher","unstructured":"Giddings SB (1992) Black holes and massive remnants. Phys Rev D46:1347\u20131352. https:\/\/doi.org\/10.1103\/PhysRevD.46.1347, hep-th\/9203059","DOI":"10.1103\/PhysRevD.46.1347"},{"key":"29-1_CR80","doi-asserted-by":"crossref","unstructured":"Giddings SB (2011) Nonlocality versus complementarity: a conservative approach to the information problem. Class Quant Grav 28:025002. https:\/\/doi.org\/10.1088\/0264-9381\/28\/2\/025002, 0911.3395","DOI":"10.1088\/0264-9381\/28\/2\/025002"},{"key":"29-1_CR81","doi-asserted-by":"publisher","unstructured":"Giddings SB (2012) Black holes, quantum information, and unitary evolution. Phys Rev D85:124063. https:\/\/doi.org\/10.1103\/PhysRevD.85.124063, 1201.1037","DOI":"10.1103\/PhysRevD.85.124063"},{"key":"29-1_CR82","doi-asserted-by":"crossref","unstructured":"Giddings SB (2016) Gravitational wave tests of quantum modifications to black hole structure \u2013 with post-GW150914 update. Class Quant Grav 33(23):235010. https:\/\/doi.org\/10.1088\/0264-9381\/33\/23\/235010, 1602.03622","DOI":"10.1088\/0264-9381\/33\/23\/235010"},{"key":"29-1_CR83","doi-asserted-by":"publisher","unstructured":"Giddings SB (2017) Nonviolent unitarization: basic postulates to soft quantum structure of black holes. JHEP 12:047. https:\/\/doi.org\/10.1007\/JHEP12(2017)047, 1701.08765","DOI":"10.1007\/JHEP12(2017)047"},{"key":"29-1_CR84","doi-asserted-by":"publisher","unstructured":"Giesler M, Isi M, Scheel MA, Teukolsky S (2019) Black hole ringdown: the importance of overtones. Phys Rev X 9(4):041060. https:\/\/doi.org\/10.1103\/PhysRevX.9.041060, 1903.08284","DOI":"10.1103\/PhysRevX.9.041060"},{"key":"29-1_CR85","doi-asserted-by":"crossref","unstructured":"Giudice GF, McCullough M, Urbano A (2016) Hunting for dark particles with gravitational waves. JCAP 1610(10):001. https:\/\/doi.org\/10.1088\/1475-7516\/2016\/10\/001, 1605.01209","DOI":"10.1088\/1475-7516\/2016\/10\/001"},{"key":"29-1_CR86","doi-asserted-by":"crossref","unstructured":"Glampedakis K, Babak S (2006) Mapping spacetimes with LISA: inspiral of a test-body in a \u2018quasi-Kerr\u2019 field. Class Quant Grav 23:4167\u20134188. https:\/\/doi.org\/10.1088\/0264-9381\/23\/12\/013, gr-qc\/0510057","DOI":"10.1088\/0264-9381\/23\/12\/013"},{"key":"29-1_CR87","doi-asserted-by":"publisher","unstructured":"Grandclement P, Som\u00e9 C, Gourgoulhon E (2014) Models of rotating boson stars and geodesics around them: new type of orbits. Phys Rev D 90(2):024068. https:\/\/doi.org\/10.1103\/PhysRevD.90.024068, 1405.4837","DOI":"10.1103\/PhysRevD.90.024068"},{"key":"29-1_CR88","doi-asserted-by":"crossref","unstructured":"Guerra D, Macedo CFB, Pani P (2019) Axion boson stars. JCAP 1909(09):061. https:\/\/doi.org\/10.1088\/1475-7516\/2019\/09\/061, 1909.05515","DOI":"10.1088\/1475-7516\/2019\/09\/061"},{"key":"29-1_CR89","doi-asserted-by":"publisher","unstructured":"Guo B, Hampton S, Mathur SD (2018) Can we observe fuzzballs or firewalls? JHEP 07:162. https:\/\/doi.org\/10.1007\/JHEP07(2018)162, 1711.01617","DOI":"10.1007\/JHEP07(2018)162"},{"key":"29-1_CR90","doi-asserted-by":"publisher","unstructured":"G\u00fcrlebeck N (2015) No-hair theorem for black holes in astrophysical environments. Phys Rev Lett 114(15):151102. https:\/\/doi.org\/10.1103\/PhysRevLett.114.151102, 1503.03240","DOI":"10.1103\/PhysRevLett.114.151102"},{"issue":"8","key":"29-1_CR91","doi-asserted-by":"publisher","first-page":"737","DOI":"10.1007\/BF01031881","volume":"15","author":"Y G\u00fcrsel","year":"1983","unstructured":"G\u00fcrsel Y (1983) Multipole moments for stationary systems: the equivalence of the Geroch-Hansen formulation and the Thorne formulation. Gen Relativ Gravit 15(8):737\u2013754. https:\/\/doi.org\/10.1007\/BF01031881","journal-title":"Gen Relativ Gravit"},{"key":"29-1_CR92","doi-asserted-by":"publisher","first-page":"46","DOI":"10.1063\/1.1666501","volume":"15","author":"RO Hansen","year":"1974","unstructured":"Hansen RO (1974) Multipole moments of stationary space-times. J Math Phys 15:46\u201352. https:\/\/doi.org\/10.1063\/1.1666501","journal-title":"J Math Phys"},{"key":"29-1_CR93","doi-asserted-by":"crossref","unstructured":"Harms E, Bernuzzi S, Nagar A, Zenginoglu A (2014) A new gravitational wave generation algorithm for particle perturbations of the Kerr spacetime. Class Quant Grav 31(24):245004. https:\/\/doi.org\/10.1088\/0264-9381\/31\/24\/245004, 1406.5983","DOI":"10.1088\/0264-9381\/31\/24\/245004"},{"key":"29-1_CR94","doi-asserted-by":"publisher","first-page":"1010","DOI":"10.1103\/PhysRevD.8.1010","volume":"D8","author":"JB Hartle","year":"1973","unstructured":"Hartle JB (1973) Tidal friction in slowly rotating black holes. Phys Rev D8:1010\u20131024. https:\/\/doi.org\/10.1103\/PhysRevD.8.1010","journal-title":"Phys Rev"},{"key":"29-1_CR95","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511524646","volume-title":"The large scale structure of space-time","author":"S Hawking","year":"2011","unstructured":"Hawking S, Ellis G (2011) The large scale structure of space-time. Cambridge monographs on mathematical physics. Cambridge University Press. https:\/\/doi.org\/10.1017\/CBO9780511524646"},{"key":"29-1_CR96","doi-asserted-by":"crossref","unstructured":"Herdeiro C, Kunz J, Perapechka I, Radu E, Shnir Y (2020) Multipolar boson stars: macroscopic Bose-Einstein condensates akin to hydrogen orbitals. 2008.10608","DOI":"10.1016\/j.physletb.2020.136027"},{"key":"29-1_CR97","doi-asserted-by":"crossref","unstructured":"Herdeiro CAR, Pombo AM, Radu E (2017) Asymptotically flat scalar, Dirac and Proca stars: discrete vs. continuous families of solutions. Phys Lett B 773:654\u2013662. https:\/\/doi.org\/10.1016\/j.physletb.2017.09.036, 1708.05674","DOI":"10.1016\/j.physletb.2017.09.036"},{"key":"29-1_CR98","doi-asserted-by":"crossref","unstructured":"Hild S et al (2011) Sensitivity studies for third-generation gravitational wave observatories. Class Quant Grav 28:094013. https:\/\/doi.org\/10.1088\/0264-9381\/28\/9\/094013, 1012.0908","DOI":"10.1088\/0264-9381\/28\/9\/094013"},{"key":"29-1_CR99","doi-asserted-by":"crossref","unstructured":"Horowitz GT, Maldacena JM, Strominger A (1996) Nonextremal black hole microstates and U duality. Phys Lett B 383:151\u2013159. https:\/\/doi.org\/10.1016\/0370-2693(96)00738-1, hep-th\/9603109","DOI":"10.1016\/0370-2693(96)00738-1"},{"key":"29-1_CR100","doi-asserted-by":"publisher","unstructured":"Hughes SA (2001) Evolution of circular, nonequatorial orbits of kerr black holes due to gravitational-wave emission. II. Inspiral trajectories and gravitational waveforms. Phys Rev D 64:064004. https:\/\/doi.org\/10.1103\/PhysRevD.64.064004, gr-qc\/0104041","DOI":"10.1103\/PhysRevD.64.064004"},{"key":"29-1_CR101","doi-asserted-by":"publisher","unstructured":"Isi M, Giesler M, Farr WM, Scheel MA, Teukolsky SA (2019) Testing the no-hair theorem with GW150914. Phys Rev Lett 123(11):111102. https:\/\/doi.org\/10.1103\/PhysRevLett.123.111102, 1905.00869","DOI":"10.1103\/PhysRevLett.123.111102"},{"key":"29-1_CR102","doi-asserted-by":"crossref","unstructured":"Israel W (1966) Singular hypersurfaces and thin shells in general relativity. Nuovo Cim B44S10:1. https:\/\/doi.org\/10.1007\/BF02710419, 10.1007\/BF02712210, [Nuovo Cim.B44,1(1966)]","DOI":"10.1007\/BF02710419"},{"key":"29-1_CR103","doi-asserted-by":"publisher","unstructured":"Jim\u00e9nez Forteza X, Bhagwat S, Pani P, Ferrari V (2020) Spectroscopy of binary black hole ringdown using overtones and angular modes. Phys Rev D 102(4):044053. https:\/\/doi.org\/10.1103\/PhysRevD.102.044053, 2005.03260","DOI":"10.1103\/PhysRevD.102.044053"},{"key":"29-1_CR104","doi-asserted-by":"publisher","unstructured":"Kastha S, Gupta A, Arun K, Sathyaprakash B, Van Den Broeck C (2018) Testing the multipole structure of compact binaries using gravitational wave observations. Phys Rev D 98(12):124033. https:\/\/doi.org\/10.1103\/PhysRevD.98.124033, 1809.10465","DOI":"10.1103\/PhysRevD.98.124033"},{"key":"29-1_CR105","doi-asserted-by":"publisher","unstructured":"Kastha S, Gupta A, Arun K, Sathyaprakash B, Van Den Broeck C (2019) Testing the multipole structure and conservative dynamics of compact binaries using gravitational wave observations: the spinning case. Phys Rev D 100(4):044007. https:\/\/doi.org\/10.1103\/PhysRevD.100.044007, 1905.07277","DOI":"10.1103\/PhysRevD.100.044007"},{"key":"29-1_CR106","doi-asserted-by":"publisher","first-page":"1331","DOI":"10.1103\/PhysRev.172.1331","volume":"172","author":"DJ Kaup","year":"1968","unstructured":"Kaup DJ (1968) Klein-Gordon Geon. Phys Rev 172:1331\u20131342. https:\/\/doi.org\/10.1103\/PhysRev.172.1331","journal-title":"Phys Rev"},{"key":"29-1_CR107","doi-asserted-by":"publisher","unstructured":"Kleihaus B, Kunz J, List M (2005) Rotating boson stars and Q-balls. Phys Rev D72:064002. https:\/\/doi.org\/10.1103\/PhysRevD.72.064002, gr-qc\/0505143","DOI":"10.1103\/PhysRevD.72.064002"},{"key":"29-1_CR108","unstructured":"Kokkotas KD (1995) Pulsating relativistic stars. In: Les Houches school of physics: astrophysical sources of gravitational radiation, pp 89\u2013102, gr-qc\/9603024"},{"key":"29-1_CR109","doi-asserted-by":"crossref","unstructured":"Kokkotas KD, Schmidt BG (1999) Quasinormal modes of stars and black holes. Living Rev Rel 2:2, gr-qc\/9909058","DOI":"10.12942\/lrr-1999-2"},{"key":"29-1_CR110","doi-asserted-by":"publisher","unstructured":"Kokkotas KD, Ruoff J, Andersson N (2004) The w-mode instability of ultracompact relativistic stars. Phys Rev D70:043003. https:\/\/doi.org\/10.1103\/PhysRevD.70.043003, astro-ph\/0212429","DOI":"10.1103\/PhysRevD.70.043003"},{"key":"29-1_CR111","doi-asserted-by":"crossref","unstructured":"Krishnendu N, Yelikar AB (2019) Testing the Kerr nature of intermediate-mass and supermassive black hole binaries using spin-induced multipole moment measurements. 1904.12712","DOI":"10.1088\/1361-6382\/ababb1"},{"key":"29-1_CR112","doi-asserted-by":"publisher","unstructured":"Krishnendu NV, Arun KG, Mishra CK (2017) Testing the binary black hole nature of a compact binary coalescence. Phys Rev Lett 119(9):091101. https:\/\/doi.org\/10.1103\/PhysRevLett.119.091101, 1701.06318","DOI":"10.1103\/PhysRevLett.119.091101"},{"key":"29-1_CR113","doi-asserted-by":"publisher","unstructured":"Krishnendu NV, Mishra CK, Arun KG (2019) Spin-induced deformations and tests of binary black hole nature using third-generation detectors. Phys Rev D99(6):064008. https:\/\/doi.org\/10.1103\/PhysRevD.99.064008, 1811.00317","DOI":"10.1103\/PhysRevD.99.064008"},{"key":"29-1_CR114","doi-asserted-by":"publisher","unstructured":"Landry P, Poisson E (2015) Tidal deformation of a slowly rotating material body. External metric. Phys Rev D 91:104018. https:\/\/doi.org\/10.1103\/PhysRevD.91.104018, 1503.07366","DOI":"10.1103\/PhysRevD.91.104018"},{"key":"29-1_CR115","doi-asserted-by":"crossref","unstructured":"Le Tiec A, Casals M (2020) Spinning black holes fall in love. 2007.00214","DOI":"10.1103\/PhysRevLett.126.131102"},{"key":"29-1_CR116","doi-asserted-by":"crossref","unstructured":"Le Tiec A, Casals M, Franzin E (2020) Tidal love numbers of Kerr black holes. 2010.15795","DOI":"10.1103\/PhysRevD.103.084021"},{"key":"29-1_CR117","first-page":"285","volume":"A402","author":"E Leaver","year":"1985","unstructured":"Leaver E (1985) An Analytic representation for the quasi normal modes of Kerr black holes. Proc R Soc Lond A402:285\u2013298","journal-title":"Proc R Soc Lond"},{"key":"29-1_CR118","doi-asserted-by":"publisher","unstructured":"Lemos JPS, Zaslavskii OB (2008) Black hole mimickers: regular versus singular behavior. Phys Rev D 78:024040. https:\/\/doi.org\/10.1103\/PhysRevD.78.024040, 0806.0845","DOI":"10.1103\/PhysRevD.78.024040"},{"key":"29-1_CR119","doi-asserted-by":"publisher","unstructured":"Lemos JPS, Lobo FSN, Quinet de Oliveira S (2003) Morris-Thorne wormholes with a cosmological constant. Phys Rev D68:064004. https:\/\/doi.org\/10.1103\/PhysRevD.68.064004, gr-qc\/0302049","DOI":"10.1103\/PhysRevD.68.064004"},{"key":"29-1_CR120","doi-asserted-by":"crossref","unstructured":"Liebling SL, Palenzuela C (2012) Dynamical boson stars. Living Rev Rel 15:6. 1202.5809","DOI":"10.12942\/lrr-2012-6"},{"key":"29-1_CR121","doi-asserted-by":"publisher","unstructured":"Lo RKL, Li TGF, Weinstein AJ (2019) Template-based gravitational-wave echoes search using Bayesian model selection. Phys Rev D99(8):084052. https:\/\/doi.org\/10.1103\/PhysRevD.99.084052, 1811.07431","DOI":"10.1103\/PhysRevD.99.084052"},{"key":"29-1_CR122","doi-asserted-by":"crossref","unstructured":"Lunin O, Mathur SD (2002) AdS\/CFT duality and the black hole information paradox. Nucl Phys B623:342\u2013394. https:\/\/doi.org\/10.1016\/S0550-3213(01)00620-4, hep-th\/0109154","DOI":"10.1016\/S0550-3213(01)00620-4"},{"key":"29-1_CR123","doi-asserted-by":"publisher","unstructured":"Lunin O, Mathur SD (2002) Statistical interpretation of Bekenstein entropy for systems with a stretched horizon. Phys Rev Lett 88:211303. https:\/\/doi.org\/10.1103\/PhysRevLett.88.211303, hep-th\/0202072","DOI":"10.1103\/PhysRevLett.88.211303"},{"key":"29-1_CR124","doi-asserted-by":"publisher","unstructured":"Maggio E, Pani P, Ferrari V (2017) Exotic compact objects and how to quench their Ergoregion instability. Phys Rev D96(10):104047. https:\/\/doi.org\/10.1103\/PhysRevD.96.104047, 1703.03696","DOI":"10.1103\/PhysRevD.96.104047"},{"key":"29-1_CR125","doi-asserted-by":"publisher","unstructured":"Maggio E, Cardoso V, Dolan SR, Pani P (2019) Ergoregion instability of exotic compact objects: electromagnetic and gravitational perturbations and the role of absorption. Phys Rev D99(6):064007. https:\/\/doi.org\/10.1103\/PhysRevD.99.064007, 1807.08840","DOI":"10.1103\/PhysRevD.99.064007"},{"key":"29-1_CR126","doi-asserted-by":"publisher","unstructured":"Maggio E, Testa A, Bhagwat S, Pani P (2019) Analytical model for gravitational-wave echoes from spinning remnants. Phys Rev D100(6):064056. https:\/\/doi.org\/10.1103\/PhysRevD.100.064056, 1907.03091","DOI":"10.1103\/PhysRevD.100.064056"},{"key":"29-1_CR127","doi-asserted-by":"publisher","unstructured":"Maggio E, Buoninfante L, Mazumdar A, Pani P (2020) How does a dark compact object ringdown? Phys Rev D 102(6):064053. https:\/\/doi.org\/10.1103\/PhysRevD.102.064053, 2006.14628","DOI":"10.1103\/PhysRevD.102.064053"},{"key":"29-1_CR128","doi-asserted-by":"crossref","unstructured":"Maggiore M et al (2020) Science case for the Einstein telescope. JCAP 03:050. https:\/\/doi.org\/10.1088\/1475-7516\/2020\/03\/050, 1912.02622","DOI":"10.1088\/1475-7516\/2020\/03\/050"},{"key":"29-1_CR129","doi-asserted-by":"crossref","unstructured":"Maldacena JM, Strominger A, Witten E (1997) Black hole entropy in M theory. JHEP 12:002. https:\/\/doi.org\/10.1088\/1126-6708\/1997\/12\/002, hep-th\/9711053","DOI":"10.1088\/1126-6708\/1997\/12\/002"},{"key":"29-1_CR130","doi-asserted-by":"publisher","unstructured":"Mark Z, Zimmerman A, Du SM, Chen Y (2017) A recipe for echoes from exotic compact objects. Phys Rev D96(8):084002. https:\/\/doi.org\/10.1103\/PhysRevD.96.084002, 1706.06155","DOI":"10.1103\/PhysRevD.96.084002"},{"key":"29-1_CR131","doi-asserted-by":"publisher","unstructured":"Maselli A, V\u00f6lkel SH, Kokkotas KD (2017) Parameter estimation of gravitational wave echoes from exotic compact objects. Phys Rev D 96(6):064045. https:\/\/doi.org\/10.1103\/PhysRevD.96.064045, 1708.02217","DOI":"10.1103\/PhysRevD.96.064045"},{"key":"29-1_CR132","doi-asserted-by":"publisher","unstructured":"Maselli A, Pani P, Cardoso V, Abdelsalhin T, Gualtieri L, Ferrari V (2018) Probing Planckian corrections at the horizon scale with LISA binaries. Phys Rev Lett 120(8):081101. https:\/\/doi.org\/10.1103\/PhysRevLett.120.081101, 1703.10612","DOI":"10.1103\/PhysRevLett.120.081101"},{"key":"29-1_CR133","doi-asserted-by":"crossref","unstructured":"Maselli A, Pani P, Cardoso V, Abdelsalhin T, Gualtieri L, Ferrari V (2019) From micro to macro and back: probing near-horizon quantum structures with gravitational waves. Class Quant Grav 36(16):167001. https:\/\/doi.org\/10.1088\/1361-6382\/ab30ff, 1811.03689","DOI":"10.1088\/1361-6382\/ab30ff"},{"key":"29-1_CR134","doi-asserted-by":"publisher","unstructured":"Mathur SD (2005) The Fuzzball proposal for black holes: an elementary review. Fortsch Phys 53:793\u2013827. https:\/\/doi.org\/10.1002\/prop.200410203, hep-th\/0502050","DOI":"10.1002\/prop.200410203"},{"key":"29-1_CR135","unstructured":"Mathur SD (2008) Fuzzballs and the information paradox: a summary and conjectures. 0810.4525"},{"key":"29-1_CR136","doi-asserted-by":"crossref","unstructured":"Mathur SD (2009) The information paradox: a pedagogical introduction. Class Quant Grav 26:224001. https:\/\/doi.org\/10.1088\/0264-9381\/26\/22\/224001, 0909.1038","DOI":"10.1088\/0264-9381\/26\/22\/224001"},{"key":"29-1_CR137","doi-asserted-by":"crossref","unstructured":"Mayerson DR (2020) Fuzzballs and observations. Gen Rel Grav 52(12):115. https:\/\/doi.org\/10.1007\/s10714-020-02769-w, 2010.09736","DOI":"10.1007\/s10714-020-02769-w"},{"key":"29-1_CR138","unstructured":"Mazur PO, Mottola E (2001) Gravitational condensate stars: an alternative to black holes. gr-qc\/0109035"},{"key":"29-1_CR139","doi-asserted-by":"publisher","unstructured":"Mazur PO, Mottola E (2004) Gravitational vacuum condensate stars. Proc Nat Acad Sci 101:9545\u20139550. https:\/\/doi.org\/10.1073\/pnas.0402717101, gr-qc\/0407075","DOI":"10.1073\/pnas.0402717101"},{"key":"29-1_CR140","doi-asserted-by":"crossref","unstructured":"Mendes RFP, Yang H (2017) Tidal deformability of boson stars and dark matter clumps. Class Quant Grav 34(18):185001. https:\/\/doi.org\/10.1088\/1361-6382\/aa842d, 1606.03035","DOI":"10.1088\/1361-6382\/aa842d"},{"key":"29-1_CR141","doi-asserted-by":"publisher","unstructured":"Minamitsuji M (2018) Vector boson star solutions with a quartic order self-interaction. Phys Rev D 97(10):104023. https:\/\/doi.org\/10.1103\/PhysRevD.97.104023, 1805.09867","DOI":"10.1103\/PhysRevD.97.104023"},{"key":"29-1_CR142","doi-asserted-by":"publisher","first-page":"395","DOI":"10.1119\/1.15620","volume":"56","author":"MS Morris","year":"1988","unstructured":"Morris MS, Thorne KS (1988) Wormholes in space-time and their use for interstellar travel: a tool for teaching general relativity. Am J Phys 56:395\u2013412. https:\/\/doi.org\/10.1119\/1.15620","journal-title":"Am J Phys"},{"key":"29-1_CR143","doi-asserted-by":"crossref","unstructured":"Moschidis G (2018) A proof of Friedman\u2019s ergosphere instability for scalar waves. Commun Math Phys 358(2):437\u2013520. https:\/\/doi.org\/10.1007\/s00220-017-3010-y, 1608.02035","DOI":"10.1007\/s00220-017-3010-y"},{"key":"29-1_CR144","doi-asserted-by":"publisher","unstructured":"Mottola E, Vaulin R (2006) Macroscopic effects of the quantum trace anomaly. Phys Rev D74:064004. https:\/\/doi.org\/10.1103\/PhysRevD.74.064004, gr-qc\/0604051","DOI":"10.1103\/PhysRevD.74.064004"},{"key":"29-1_CR145","doi-asserted-by":"crossref","unstructured":"Myers RC (1997) Pure states don\u2019t wear black. Gen Rel Grav 29:1217\u20131222. https:\/\/doi.org\/10.1023\/A:1018855611972, gr-qc\/9705065","DOI":"10.1023\/A:1018855611972"},{"key":"29-1_CR146","doi-asserted-by":"publisher","unstructured":"Nakano H, Sago N, Tagoshi H, Tanaka T (2017) Black hole ringdown echoes and howls. PTEP 2017(7):071E01. https:\/\/doi.org\/10.1093\/ptep\/ptx093, 1704.07175","DOI":"10.1093\/ptep\/ptx093"},{"key":"29-1_CR147","doi-asserted-by":"publisher","unstructured":"Nielsen AB, Capano CD, Birnholtz O, Westerweck J (2019) Parameter estimation and statistical significance of echoes following black hole signals in the first Advanced LIGO observing run. Phys Rev D99(10):104012. https:\/\/doi.org\/10.1103\/PhysRevD.99.104012, 1811.04904","DOI":"10.1103\/PhysRevD.99.104012"},{"key":"29-1_CR148","doi-asserted-by":"publisher","unstructured":"Oshita N, Afshordi N (2019) Probing microstructure of black hole spacetimes with gravitational wave echoes. Phys Rev D 99(4):044002. https:\/\/doi.org\/10.1103\/PhysRevD.99.044002, 1807.10287","DOI":"10.1103\/PhysRevD.99.044002"},{"key":"29-1_CR149","unstructured":"Oshita N, Wang Q, Afshordi N (2019) On reflectivity of quantum black hole horizons. 1905.00464"},{"key":"29-1_CR150","doi-asserted-by":"publisher","unstructured":"Ota I, Chirenti C (2020) Overtones or higher harmonics? Prospects for testing the no-hair theorem with gravitational wave detections. Phys Rev D 101(10):104005. https:\/\/doi.org\/10.1103\/PhysRevD.101.104005, 1911.00440","DOI":"10.1103\/PhysRevD.101.104005"},{"key":"29-1_CR151","doi-asserted-by":"crossref","unstructured":"Pacilio C, Vaglio M, Maselli A, Pani P (2020) Gravitational-wave detectors as particle-physics laboratories: constraining scalar interactions with boson-star binaries. 2007.05264","DOI":"10.1103\/PhysRevD.102.083002"},{"key":"29-1_CR152","doi-asserted-by":"publisher","unstructured":"Palenzuela C, Lehner L, Liebling SL (2008) Orbital dynamics of binary boson star systems. Phys Rev D 77:044036. https:\/\/doi.org\/10.1103\/PhysRevD.77.044036, 0706.2435","DOI":"10.1103\/PhysRevD.77.044036"},{"key":"29-1_CR153","doi-asserted-by":"publisher","unstructured":"Palenzuela C, Pani P, Bezares M, Cardoso V, Lehner L, Liebling S (2017) Gravitational wave signatures of highly compact boson star binaries. Phys Rev D 96(10):104058. https:\/\/doi.org\/10.1103\/PhysRevD.96.104058, 1710.09432","DOI":"10.1103\/PhysRevD.96.104058"},{"key":"29-1_CR154","doi-asserted-by":"publisher","unstructured":"Pani P (2015) I-Love-Q relations for gravastars and the approach to the black-hole limit. Phys Rev D92(12):124030. https:\/\/doi.org\/10.1103\/PhysRevD.92.124030, 1506.06050","DOI":"10.1103\/PhysRevD.92.124030"},{"key":"29-1_CR155","doi-asserted-by":"crossref","unstructured":"Pani P, Ferrari V (2018) On gravitational-wave echoes from neutron-star binary coalescences. Class Quant Grav 35(15):15LT01. https:\/\/doi.org\/10.1088\/1361-6382\/aacb8f, 1804.01444","DOI":"10.1088\/1361-6382\/aacb8f"},{"key":"29-1_CR156","doi-asserted-by":"crossref","unstructured":"Pani P, Maselli A (2019) Love in extrema ratio. Int J Mod Phys D28(14):1944001. https:\/\/doi.org\/10.1142\/S0218271819440012, 1905.03947","DOI":"10.1142\/S0218271819440012"},{"key":"29-1_CR157","doi-asserted-by":"publisher","unstructured":"Pani P, Barausse E, Berti E, Cardoso V (2010) Gravitational instabilities of superspinars. Phys Rev D82:044009. https:\/\/doi.org\/10.1103\/PhysRevD.82.044009, 1006.1863","DOI":"10.1103\/PhysRevD.82.044009"},{"key":"29-1_CR158","doi-asserted-by":"publisher","unstructured":"Pani P, Cardoso V, Gualtieri L, Berti E, Ishibashi A (2012) Perturbations of slowly rotating black holes: massive vector fields in the Kerr metric. Phys Rev D86:104017. https:\/\/doi.org\/10.1103\/PhysRevD.86.104017, 1209.0773","DOI":"10.1103\/PhysRevD.86.104017"},{"key":"29-1_CR159","doi-asserted-by":"publisher","unstructured":"Pani P, Gualtieri L, Ferrari V (2015) Tidal Love numbers of a slowly spinning neutron star. Phys Rev D 92(12):124003. https:\/\/doi.org\/10.1103\/PhysRevD.92.124003, 1509.02171","DOI":"10.1103\/PhysRevD.92.124003"},{"key":"29-1_CR160","doi-asserted-by":"publisher","unstructured":"Pani P, Gualtieri L, Maselli A, Ferrari V (2015) Tidal deformations of a spinning compact object. Phys Rev D 92(2):024010. https:\/\/doi.org\/10.1103\/PhysRevD.92.024010, 1503.07365","DOI":"10.1103\/PhysRevD.92.024010"},{"key":"29-1_CR161","doi-asserted-by":"publisher","first-page":"57","DOI":"10.1103\/PhysRevLett.14.57","volume":"14","author":"R Penrose","year":"1965","unstructured":"Penrose R (1965) Gravitational collapse and space-time singularities. Phys Rev Lett 14:57\u201359. https:\/\/doi.org\/10.1103\/PhysRevLett.14.57","journal-title":"Phys Rev Lett"},{"key":"29-1_CR162","first-page":"252","volume":"1","author":"R Penrose","year":"1969","unstructured":"Penrose R (1969) Nuovo Cimento. J Serie 1:252","journal-title":"J Serie"},{"key":"29-1_CR163","doi-asserted-by":"publisher","unstructured":"Poisson E (2015) Tidal deformation of a slowly rotating black hole. Phys Rev D 91(4):044004. https:\/\/doi.org\/10.1103\/PhysRevD.91.044004, 1411.4711","DOI":"10.1103\/PhysRevD.91.044004"},{"key":"29-1_CR164","volume-title":"Gravity: Newtonian, post-Newtonian, relativistic","author":"E Poisson","year":"1953","unstructured":"Poisson E, Will C (1953) Gravity: Newtonian, post-Newtonian, relativistic. Cambridge University Press, Cambridge"},{"key":"29-1_CR165","doi-asserted-by":"publisher","first-page":"649","DOI":"10.1086\/152445","volume":"185","author":"WH Press","year":"1973","unstructured":"Press WH, Teukolsky SA (1973) Perturbations of a rotating black hole. II. Dynamical stability of the Kerr metric. Astrophys J 185:649\u2013674. https:\/\/doi.org\/10.1086\/152445","journal-title":"Astrophys J"},{"key":"29-1_CR166","doi-asserted-by":"publisher","first-page":"915","DOI":"10.1103\/PhysRevD.33.915","volume":"33","author":"R Price","year":"1986","unstructured":"Price R, Thorne K (1986) Membrane viewpoint on black holes: properties and evolution of the stretched horizon. Phys Rev D 33:915\u2013941. https:\/\/doi.org\/10.1103\/PhysRevD.33.915","journal-title":"Phys Rev D"},{"key":"29-1_CR167","unstructured":"Raposo G (2021) Testing the nature of black holes with gravitational waves. PhD thesis, Sapienza Universit\u00e0 di Roma"},{"key":"29-1_CR168","doi-asserted-by":"publisher","unstructured":"Raposo G, Pani P, Bezares M, Palenzuela C, Cardoso V (2019) Anisotropic stars as ultracompact objects in general relativity. Phys Rev D99(10):104072. https:\/\/doi.org\/10.1103\/PhysRevD.99.104072, 1811.07917","DOI":"10.1103\/PhysRevD.99.104072"},{"key":"29-1_CR169","doi-asserted-by":"publisher","unstructured":"Raposo G, Pani P, Emparan R (2019) Exotic compact objects with soft hair. Phys Rev D 99(10):104050. https:\/\/doi.org\/10.1103\/PhysRevD.99.104050, 1812.07615","DOI":"10.1103\/PhysRevD.99.104050"},{"key":"29-1_CR170","doi-asserted-by":"publisher","first-page":"1063","DOI":"10.1103\/PhysRev.108.1063","volume":"108","author":"T Regge","year":"1957","unstructured":"Regge T, Wheeler JA (1957) Stability of a Schwarzschild singularity. Phys Rev 108:1063\u20131069. https:\/\/doi.org\/10.1103\/PhysRev.108.1063","journal-title":"Phys Rev"},{"key":"29-1_CR171","unstructured":"Reitze D et al (2019) Cosmic explorer: the U.S. contribution to gravitational-wave astronomy beyond LIGO. Bull Am Astron Soc 51(7):035. 1907.04833"},{"key":"29-1_CR172","doi-asserted-by":"publisher","first-page":"905","DOI":"10.1103\/PhysRevLett.34.905","volume":"34","author":"D Robinson","year":"1975","unstructured":"Robinson D (1975) Uniqueness of the Kerr black hole. Phys Rev Lett 34:905\u2013906. https:\/\/doi.org\/10.1103\/PhysRevLett.34.905","journal-title":"Phys Rev Lett"},{"key":"29-1_CR173","doi-asserted-by":"publisher","first-page":"1767","DOI":"10.1103\/PhysRev.187.1767","volume":"187","author":"R Ruffini","year":"1969","unstructured":"Ruffini R, Bonazzola S (1969) Systems of selfgravitating particles in general relativity and the concept of an equation of state. Phys Rev 187:1767\u20131783. https:\/\/doi.org\/10.1103\/PhysRev.187.1767","journal-title":"Phys Rev"},{"key":"29-1_CR174","doi-asserted-by":"publisher","unstructured":"Sanchis-Gual N, Herdeiro C, Font JA, Radu E, Di Giovanni F (2019) Head-on collisions and orbital mergers of Proca stars. Phys Rev D 99(2):024017. https:\/\/doi.org\/10.1103\/PhysRevD.99.024017, 1806.07779","DOI":"10.1103\/PhysRevD.99.024017"},{"key":"29-1_CR175","doi-asserted-by":"crossref","unstructured":"Schunck F, Mielke E (2003) General relativistic boson stars. Class Quant Grav 20:R301\u2013R356. 0801.0307","DOI":"10.1088\/0264-9381\/20\/20\/201"},{"key":"29-1_CR176","doi-asserted-by":"publisher","unstructured":"Seidel E, Suen WM (1994) Formation of solitonic stars through gravitational cooling. Phys Rev Lett 72:2516\u20132519. https:\/\/doi.org\/10.1103\/PhysRevLett.72.2516, gr-qc\/9309015","DOI":"10.1103\/PhysRevLett.72.2516"},{"key":"29-1_CR177","doi-asserted-by":"publisher","unstructured":"Sennett N, Hinderer T, Steinhoff J, Buonanno A, Ossokine S (2017) Distinguishing boson stars from black holes and neutron stars from tidal interactions in inspiraling binary systems. Phys Rev D 96(2):024002. https:\/\/doi.org\/10.1103\/PhysRevD.96.024002, 1704.08651","DOI":"10.1103\/PhysRevD.96.024002"},{"key":"29-1_CR178","first-page":"3","volume":"65","author":"AA Starobinskij","year":"1973","unstructured":"Starobinskij AA, Churilov SM (1973) Amplification of electromagnetic and gravitational waves scattered by a rotating black hole. Zhurnal Eksperimentalnoi i Teoreticheskoi Fiziki 65:3\u201311","journal-title":"Zhurnal Eksperimentalnoi i Teoreticheskoi Fiziki"},{"key":"29-1_CR179","doi-asserted-by":"crossref","unstructured":"Strominger A, Vafa C (1996) Microscopic origin of the Bekenstein-Hawking entropy. Phys Lett B379:99\u2013104. https:\/\/doi.org\/10.1016\/0370-2693(96)00345-0, hep-th\/9601029","DOI":"10.1016\/0370-2693(96)00345-0"},{"key":"29-1_CR180","doi-asserted-by":"publisher","unstructured":"Taracchini A, Buonanno A, Hughes SA, Khanna G (2013) Modeling the horizon-absorbed gravitational flux for equatorial-circular orbits in Kerr spacetime. Phys Rev D 88:044001. https:\/\/doi.org\/10.1103\/PhysRevD.88.044001, [Erratum: Phys Rev D 88:109903 (2013)], 1305.2184","DOI":"10.1103\/PhysRevD.88.044001"},{"key":"29-1_CR181","doi-asserted-by":"publisher","unstructured":"Testa A, Pani P (2018) Analytical template for gravitational-wave echoes: signal characterization and prospects of detection with current and future interferometers. Phys Rev D98(4):044018. https:\/\/doi.org\/10.1103\/PhysRevD.98.044018, 1806.04253","DOI":"10.1103\/PhysRevD.98.044018"},{"key":"29-1_CR182","doi-asserted-by":"publisher","first-page":"635","DOI":"10.1086\/152444","volume":"185","author":"SA Teukolsky","year":"1973","unstructured":"Teukolsky SA (1973) Perturbations of a rotating black hole. 1. Fundamental equations for gravitational electromagnetic and neutrino field perturbations. Astrophys J 185:635\u2013647. https:\/\/doi.org\/10.1086\/152444","journal-title":"Astrophys J"},{"key":"29-1_CR183","doi-asserted-by":"publisher","first-page":"443","DOI":"10.1086\/153180","volume":"193","author":"SA Teukolsky","year":"1974","unstructured":"Teukolsky SA, Press WH (1974) Perturbations of a rotating black hole. III. Interaction of the hole with gravitational and electromagnetic radiation. Astrophys J 193:443\u2013461. https:\/\/doi.org\/10.1086\/153180","journal-title":"Astrophys J"},{"key":"29-1_CR184","doi-asserted-by":"publisher","first-page":"299","DOI":"10.1103\/RevModPhys.52.299","volume":"52","author":"KS Thorne","year":"1980","unstructured":"Thorne KS (1980) Multipole expansions of gravitational radiation. Rev Mod Phys 52:299\u2013339. https:\/\/doi.org\/10.1103\/RevModPhys.52.299","journal-title":"Rev Mod Phys"},{"key":"29-1_CR185","volume-title":"Black holes: the membrane paradigm","author":"KS Thorne","year":"1986","unstructured":"Thorne KS, Price R, Macdonald D (1986) Black holes: the membrane paradigm. Yale University Press, New Haven"},{"key":"29-1_CR186","doi-asserted-by":"publisher","unstructured":"Tominaga K, Saijo M, Maeda KI (1999) Gravitational waves from a test particle scattered by a neutron star: axial mode case. Phys Rev D 60:024004. https:\/\/doi.org\/10.1103\/PhysRevD.60.024004, gr-qc\/9901040","DOI":"10.1103\/PhysRevD.60.024004"},{"key":"29-1_CR187","doi-asserted-by":"publisher","unstructured":"Tominaga K, Saijo M, Maeda KI (2001) Gravitational waves from a spinning particle scattered by a relativistic star: axial mode case. Phys Rev D 63:124012. https:\/\/doi.org\/10.1103\/PhysRevD.63.124012, gr-qc\/0009055","DOI":"10.1103\/PhysRevD.63.124012"},{"key":"29-1_CR188","doi-asserted-by":"publisher","unstructured":"Tsang KW, Rollier M, Ghosh A, Samajdar A, Agathos M, Chatziioannou K, Cardoso V, Khanna G, Van Den Broeck C (2018) A morphology-independent data analysis method for detecting and characterizing gravitational wave echoes. Phys Rev D98(2):024023. https:\/\/doi.org\/10.1103\/PhysRevD.98.024023, 1804.04877","DOI":"10.1103\/PhysRevD.98.024023"},{"key":"29-1_CR189","doi-asserted-by":"publisher","unstructured":"Tsang KW, Ghosh A, Samajdar A, Chatziioannou K, Mastrogiovanni S, Agathos M, Van Den Broeck C (2020) A morphology-independent search for gravitational wave echoes in data from the first and second observing runs of Advanced LIGO and Advanced Virgo. Phys Rev D 101(6):064012. https:\/\/doi.org\/10.1103\/PhysRevD.101.064012, 1906.11168","DOI":"10.1103\/PhysRevD.101.064012"},{"key":"29-1_CR190","doi-asserted-by":"publisher","unstructured":"Uchikata N, Yoshida S, Pani P (2016) Tidal deformability and I-Love-Q relations for gravastars with polytropic thin shells. Phys Rev D 94(6):064015. https:\/\/doi.org\/10.1103\/PhysRevD.94.064015, 1607.03593","DOI":"10.1103\/PhysRevD.94.064015"},{"key":"29-1_CR191","doi-asserted-by":"publisher","unstructured":"Uchikata N, Nakano H, Narikawa T, Sago N, Tagoshi H, Tanaka T (2019) Searching for black hole echoes from the LIGO-Virgo Catalog GWTC-1. Phys Rev D100(6):062006. https:\/\/doi.org\/10.1103\/PhysRevD.100.062006, 1906.00838","DOI":"10.1103\/PhysRevD.100.062006"},{"key":"29-1_CR192","unstructured":"Urbano A, Veerm\u00e4e H (2018) On gravitational echoes from ultracompact exotic stars. 1810.07137"},{"key":"29-1_CR193","doi-asserted-by":"crossref","unstructured":"Vilenkin A (1978) Exponential amplification of waves in the gravitational field of ultrarelativistic rotating body. Phys Lett B78:301\u2013303. https:\/\/doi.org\/10.1016\/0370-2693(78) 90027-8","DOI":"10.1016\/0370-2693(78)90027-8"},{"key":"29-1_CR194","unstructured":"Visser M (1995) Lorentzian wormholes: from Einstein to Hawking"},{"key":"29-1_CR195","doi-asserted-by":"publisher","unstructured":"Wang Q, Afshordi N (2018) Black hole echology: the observer\u2019s manual. Phys Rev D 97(12):124044. https:\/\/doi.org\/10.1103\/PhysRevD.97.124044, 1803.02845","DOI":"10.1103\/PhysRevD.97.124044"},{"key":"29-1_CR196","doi-asserted-by":"publisher","unstructured":"Wang Q, Oshita N, Afshordi N (2020) Echoes from quantum black holes. Phys Rev D 101(2):024031. https:\/\/doi.org\/10.1103\/PhysRevD.101.024031, 1905.00446","DOI":"10.1103\/PhysRevD.101.024031"},{"key":"29-1_CR197","doi-asserted-by":"publisher","unstructured":"Westerweck J, Nielsen A, Fischer-Birnholtz O, Cabero M, Capano C, Dent T, Krishnan B, Meadors G, Nitz AH (2018) Low significance of evidence for black hole echoes in gravitational wave data. Phys Rev D97(12):124037. https:\/\/doi.org\/10.1103\/PhysRevD.97.124037, 1712.09966","DOI":"10.1103\/PhysRevD.97.124037"},{"key":"29-1_CR198","doi-asserted-by":"publisher","first-page":"580","DOI":"10.1093\/mnras\/282.2.580","volume":"282","author":"S Yoshida","year":"1996","unstructured":"Yoshida S, Eriguchi Y (1996) Ergoregion instability revisited \u2013 a new and general method for numerical analysis of stability. Mon Not R Astron Soc 282:580\u2013586","journal-title":"Mon Not R Astron Soc"},{"key":"29-1_CR199","doi-asserted-by":"publisher","first-page":"2141","DOI":"10.1103\/PhysRevD.2.2141","volume":"D2","author":"F Zerilli","year":"1970","unstructured":"Zerilli F (1970) Gravitational field of a particle falling in a schwarzschild geometry analyzed in tensor harmonics. Phys Rev D2:2141\u20132160. https:\/\/doi.org\/10.1103\/PhysRevD.2.2141","journal-title":"Phys Rev"},{"key":"29-1_CR200","doi-asserted-by":"publisher","first-page":"737","DOI":"10.1103\/PhysRevLett.24.737","volume":"24","author":"FJ Zerilli","year":"1970","unstructured":"Zerilli FJ (1970) Effective potential for even parity Regge-Wheeler gravitational perturbation equations. Phys Rev Lett 24:737\u2013738. https:\/\/doi.org\/10.1103\/PhysRevLett.24.737","journal-title":"Phys Rev Lett"},{"key":"29-1_CR201","doi-asserted-by":"publisher","unstructured":"Zhang J, Zhou SY (2018) Can the graviton have a large mass near black holes? Phys Rev D 97(8):081501. https:\/\/doi.org\/10.1103\/PhysRevD.97.081501, 1709.07503","DOI":"10.1103\/PhysRevD.97.081501"}],"container-title":["Handbook of Gravitational Wave Astronomy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/978-981-15-4702-7_29-1","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,10,23]],"date-time":"2021-10-23T10:06:42Z","timestamp":1634983602000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/978-981-15-4702-7_29-1"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021]]},"ISBN":["9789811547027","9789811547027"],"references-count":201,"URL":"https:\/\/doi.org\/10.1007\/978-981-15-4702-7_29-1","relation":{},"subject":[],"published":{"date-parts":[[2021]]},"assertion":[{"value":"24 October 2021","order":1,"name":"first_online","label":"First Online","group":{"name":"ChapterHistory","label":"Chapter History"}}]}}