{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,23]],"date-time":"2026-04-23T19:09:46Z","timestamp":1776971386981,"version":"3.51.4"},"reference-count":53,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2023,4,5]],"date-time":"2023-04-05T00:00:00Z","timestamp":1680652800000},"content-version":"vor","delay-in-days":1,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"funder":[{"DOI":"10.13039\/100006129","name":"FCT","doi-asserted-by":"publisher","award":["2022.04048.PTDC"],"award-info":[{"award-number":["2022.04048.PTDC"]}],"id":[{"id":"10.13039\/100006129","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000163","name":"ARC","doi-asserted-by":"publisher","award":["LE130100104"],"award-info":[{"award-number":["LE130100104"]}],"id":[{"id":"10.13039\/100000163","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001797","name":"Curtin University of Technology","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001797","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004661","name":"Australian Astronomical Observatory","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004661","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000844","name":"European Space Agency","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000844","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000104","name":"National Aeronautics and Space Administration","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000104","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000001","name":"National Science Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000001","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,4,21]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n               <jats:p>The QUBRICS (QUasars as BRIght beacons for Cosmology in the Southern hemisphere) survey aims at constructing a sample of the brightest quasars with $z \\lower.5ex\\hbox{$\\,\\, \\buildrel\\gt \\over \\sim \\,\\,$}2.5$, observable with facilities in the Southern Hemisphere. QUBRICS makes use of the available optical and IR wide-field surveys in the South and of Machine Learning techniques to produce thousands of bright quasar candidates of which only a few hundred have been confirmed with follow-up spectroscopy. Taking advantage of the recent Gaia Data Release 3, which contains 220 million low-resolution spectra, and of a newly developed spectral energy distribution fitting technique, designed to combine the photometric information with the Gaia spectroscopy, it has been possible to measure 1672 new secure redshifts of QUBRICS candidates, with a typical uncertainty of \u03c3z\u00a0= 0.02. This significant progress of QUBRICS brings it closer to (one of) its primary goals: providing a sample of bright quasars at redshift 2.5 &amp;lt; z &amp;lt; 5 to perform the Sandage test of the cosmological redshift drift. A Golden Sample of seven quasars is presented that makes it possible to carry out this experiment in about 1500\u00a0h of observation in 25\u00a0yr, using the ANDES spectrograph at the 39m ELT, a significant improvement with respect to previous estimates.<\/jats:p>","DOI":"10.1093\/mnras\/stad1007","type":"journal-article","created":{"date-parts":[[2023,4,5]],"date-time":"2023-04-05T02:17:05Z","timestamp":1680661025000},"page":"2019-2028","source":"Crossref","is-referenced-by-count":23,"title":["Spectroscopy of QUBRICS quasar candidates: 1672 new redshifts and a golden sample for the Sandage test of the redshift drift"],"prefix":"10.1093","volume":"522","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2115-5234","authenticated-orcid":false,"given":"Stefano","family":"Cristiani","sequence":"first","affiliation":[{"name":"INAF\u2013Osservatorio Astronomico di Trieste , Via G.B. Tiepolo, 11, I-34143 Trieste, Italy"},{"name":"IFPU\u2013Institute for Fundamental Physics of the Universe , via Beirut 2, I-34151 Trieste, Italy"},{"name":"INFN\u2013National Institute for Nuclear Physics , via Valerio 2, I-34127 Trieste, Italy"}]},{"given":"Matteo","family":"Porru","sequence":"additional","affiliation":[{"name":"INAF\u2013Osservatorio Astronomico di Trieste , Via G.B. Tiepolo, 11, I-34143 Trieste, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4740-9762","authenticated-orcid":false,"given":"Francesco","family":"Guarneri","sequence":"additional","affiliation":[{"name":"INAF\u2013Osservatorio Astronomico di Trieste , Via G.B. Tiepolo, 11, I-34143 Trieste, Italy"},{"name":"Dipartimento di Fisica, Sezione di Astronomia, Universit\u00e1 di Trieste , via G.B. Tiepolo 11, I-34131 Trieste, Italy"},{"name":"ESO\u2013European Southern Observatory , Karl-Schwarzschild-Strasse 2, D-85748 Garching bei M\u00fcnchen, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7738-5389","authenticated-orcid":false,"given":"Giorgio","family":"Calderone","sequence":"additional","affiliation":[{"name":"INAF\u2013Osservatorio Astronomico di Trieste , Via G.B. Tiepolo, 11, I-34143 Trieste, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4432-5037","authenticated-orcid":false,"given":"Konstantina","family":"Boutsia","sequence":"additional","affiliation":[{"name":"Las Campanas Observatory, Carnegie Observatories , Colina El Pino, Casilla 601, La Serena, Chile"}]},{"given":"Andrea","family":"Grazian","sequence":"additional","affiliation":[{"name":"INAF\u2013Osservatorio Astronomico di Padova , Vicolo dell\u2019Osservatorio 5, I-35122 Padova, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6830-9093","authenticated-orcid":false,"given":"Guido","family":"Cupani","sequence":"additional","affiliation":[{"name":"INAF\u2013Osservatorio Astronomico di Trieste , Via G.B. Tiepolo, 11, I-34143 Trieste, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3693-3091","authenticated-orcid":false,"given":"Valentina","family":"D\u2019Odorico","sequence":"additional","affiliation":[{"name":"INAF\u2013Osservatorio Astronomico di Trieste , Via G.B. Tiepolo, 11, I-34143 Trieste, Italy"},{"name":"IFPU\u2013Institute for Fundamental Physics of the Universe , via Beirut 2, I-34151 Trieste, Italy"},{"name":"Scuola Normale Superiore , P.zza dei Cavalieri, I-56126 Pisa, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4744-0188","authenticated-orcid":false,"given":"Fabio","family":"Fontanot","sequence":"additional","affiliation":[{"name":"INAF\u2013Osservatorio Astronomico di Trieste , Via G.B. Tiepolo, 11, I-34143 Trieste, Italy"},{"name":"IFPU\u2013Institute for Fundamental Physics of the Universe , via Beirut 2, I-34151 Trieste, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4886-9261","authenticated-orcid":false,"given":"Carlos J A P","family":"Martins","sequence":"additional","affiliation":[{"name":"Centro de Astrof\u00edsica da Universidade do Porto , Rua das Estrelas, P-4150-762 Porto, Portugal"},{"name":"Instituto de Astrof\u00edsica e Ci\u00eancias do Espa\u00e7o , CAUP, Rua das Estrelas, P-4150-762 Porto, Portugal"}]},{"given":"Catarina M J","family":"Marques","sequence":"additional","affiliation":[{"name":"Centro de Astrof\u00edsica da Universidade do Porto , Rua das Estrelas, P-4150-762 Porto, Portugal"},{"name":"Instituto de Astrof\u00edsica e Ci\u00eancias do Espa\u00e7o , CAUP, Rua das Estrelas, P-4150-762 Porto, Portugal"},{"name":"Faculdade de Ci\u00eancias, Universidade do Porto , Rua do Campo Alegre, P-4150-007 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7684-4205","authenticated-orcid":false,"given":"Soumak","family":"Maitra","sequence":"additional","affiliation":[{"name":"INAF\u2013Osservatorio Astronomico di Trieste , Via G.B. Tiepolo, 11, I-34143 Trieste, Italy"}]},{"given":"Andrea","family":"Trost","sequence":"additional","affiliation":[{"name":"INAF\u2013Osservatorio Astronomico di Trieste , Via G.B. Tiepolo, 11, I-34143 Trieste, Italy"},{"name":"Dipartimento di Fisica, Sezione di Astronomia, Universit\u00e1 di Trieste , via G.B. Tiepolo 11, I-34131 Trieste, Italy"}]}],"member":"286","published-online":{"date-parts":[[2023,4,4]]},"reference":[{"key":"2024040400023639400_bib1","doi-asserted-by":"publisher","first-page":"3607","DOI":"10.1093\/mnras\/stz1934","volume":"488","author":"Alves","year":"2019","journal-title":"MNRAS"},{"key":"2024040400023639400_bib2","volume-title":"An Introduction to Multivariate Statistical Analysis (Wiley Series in Probability and Mathematical Statistics)","author":"Anderson","year":"2003","edition":"3 edn."},{"key":"2024040400023639400_bib3","doi-asserted-by":"crossref","first-page":"431","DOI":"10.1007\/978-1-4612-3880-5_41","volume-title":"Instrumentation for Ground-Based Optical Astronomy","author":"Banse","year":"1988"},{"key":"2024040400023639400_bib4","doi-asserted-by":"publisher","first-page":"26","DOI":"10.3847\/1538-4365\/abafc1","volume":"250","author":"Boutsia","year":"2020","journal-title":"ApJS"},{"key":"2024040400023639400_bib5","doi-asserted-by":"publisher","first-page":"111","DOI":"10.3847\/1538-4357\/abedb5","volume":"912","author":"Boutsia","year":"2021","journal-title":"ApJ"},{"key":"2024040400023639400_bib6","doi-asserted-by":"publisher","first-page":"4051","DOI":"10.1093\/mnras\/stx2239","volume":"472","author":"Calderone","year":"2017","journal-title":"MNRAS"},{"key":"2024040400023639400_bib7","doi-asserted-by":"publisher","first-page":"268","DOI":"10.3847\/1538-4357\/ab510a","volume":"887","author":"Calderone","year":"2019","journal-title":"ApJ"},{"key":"2024040400023639400_bib8","author":"Chambers","year":"2016"},{"key":"2024040400023639400_bib9","doi-asserted-by":"publisher","first-page":"785","DOI":"10.1145\/2939672.2939785","volume-title":"Proceedings of the 22nd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining.\u00a0KDD\u201916","author":"Chen","year":"2016"},{"key":"2024040400023639400_bib10","doi-asserted-by":"publisher","first-page":"1039","DOI":"10.1046\/j.1365-8711.2001.04902.x","volume":"328","author":"Colless","year":"2001","journal-title":"MNRAS"},{"key":"2024040400023639400_bib11","doi-asserted-by":"publisher","first-page":"2509","DOI":"10.1093\/mnras\/stab3562","volume":"510","author":"Cupani","year":"2022","journal-title":"MNRAS"},{"key":"2024040400023639400_bib12","volume-title":"A&A","author":"De\u00a0Angeli","year":"2022"},{"key":"2024040400023639400_bib13","doi-asserted-by":"publisher","first-page":"5493","DOI":"10.1093\/mnras\/stac1702","volume":"514","author":"Dong","year":"2022","journal-title":"MNRAS"},{"key":"2024040400023639400_bib14","doi-asserted-by":"publisher","first-page":"L53","DOI":"10.1093\/mnrasl\/slab102","volume":"508","author":"Esteves","year":"2021","journal-title":"MNRAS"},{"key":"2024040400023639400_bib15","doi-asserted-by":"publisher","first-page":"e004","DOI":"10.1017\/pasa.2012.004","volume":"30","author":"Flesch","year":"2013","journal-title":"Publ. Astron. Soc. Austr."},{"key":"2024040400023639400_bib16","doi-asserted-by":"publisher","first-page":"740","DOI":"10.1093\/mnras\/stad189","volume":"520","author":"Fontanot","year":"2023","journal-title":"MNRAS"},{"key":"2024040400023639400_bib17","doi-asserted-by":"publisher","first-page":"A1","DOI":"10.1051\/0004-6361\/202039657","volume":"649","author":"Gaia Collaboration","year":"2021","journal-title":"A&A"},{"key":"2024040400023639400_bib18","doi-asserted-by":"publisher","first-page":"62","DOI":"10.3847\/1538-4357\/ac33a4","volume":"924","author":"Grazian","year":"2022","journal-title":"ApJ"},{"key":"2024040400023639400_bib19","doi-asserted-by":"publisher","first-page":"2471","DOI":"10.1093\/mnras\/stab1867","volume":"506","author":"Guarneri","year":"2021","journal-title":"MNRAS"},{"key":"2024040400023639400_bib20","doi-asserted-by":"publisher","first-page":"2436","DOI":"10.1093\/mnras\/stac2733","volume":"517","author":"Guarneri","year":"2022","journal-title":"MNRAS"},{"key":"2024040400023639400_bib21","doi-asserted-by":"publisher","first-page":"61","DOI":"10.1016\/j.ascom.2016.03.001","volume":"15","author":"Hinton","year":"2016","journal-title":"Astron. Comput."},{"key":"2024040400023639400_bib22","doi-asserted-by":"publisher","first-page":"1805","DOI":"10.1093\/mnras\/stu936","volume":"442","author":"Inoue","year":"2014","journal-title":"MNRAS"},{"key":"2024040400023639400_bib23","doi-asserted-by":"publisher","first-page":"683","DOI":"10.1111\/j.1365-2966.2009.15338.x","volume":"399","author":"Jones","year":"2009","journal-title":"MNRAS"},{"key":"2024040400023639400_bib24","doi-asserted-by":"publisher","first-page":"1247","DOI":"10.1093\/mnras\/sty1890","volume":"480","author":"Kubota","year":"2018","journal-title":"MNRAS"},{"key":"2024040400023639400_bib25","doi-asserted-by":"publisher","first-page":"897","DOI":"10.1093\/mnras\/238.3.897","volume":"238","author":"Laor","year":"1989","journal-title":"MNRAS"},{"key":"2024040400023639400_bib26","doi-asserted-by":"publisher","first-page":"1192","DOI":"10.1111\/j.1365-2966.2008.13090.x","volume":"386","author":"Liske","year":"2008","journal-title":"MNRAS"},{"key":"2024040400023639400_bib27","doi-asserted-by":"publisher","first-page":"8","DOI":"10.3847\/1538-4365\/aba623","volume":"250","author":"Lyke","year":"2020","journal-title":"ApJS"},{"key":"2024040400023639400_bib28","first-page":"1218424","volume-title":"Proc. SPIE Conf. Ser. Vol. 12184, Ground-based and Airborne Instrumentation for Astronomy IX","author":"Marconi","year":"2022"},{"key":"2024040400023639400_bib29","doi-asserted-by":"publisher","first-page":"043001","DOI":"10.1103\/PhysRevD.94.043001","volume":"94","author":"Martins","year":"2016","journal-title":"Phys. Rev. D"},{"key":"2024040400023639400_bib30","first-page":"35","volume":"154","author":"McMahon","year":"2013","journal-title":"Msngr"},{"key":"2024040400023639400_bib31","doi-asserted-by":"publisher","first-page":"298","DOI":"10.1088\/0004-637X\/705\/1\/298","volume":"705","author":"Mor","year":"2009","journal-title":"ApJ"},{"key":"2024040400023639400_bib32","doi-asserted-by":"publisher","first-page":"6","DOI":"10.1007\/s41114-022-00040-z","volume":"25","author":"Moresco","year":"2022","journal-title":"Living Rev. Relat."},{"key":"2024040400023639400_bib33","doi-asserted-by":"publisher","first-page":"682","DOI":"10.1086\/520512","volume":"173","author":"Morrissey","year":"2007","journal-title":"ApJS"},{"key":"2024040400023639400_bib34","doi-asserted-by":"publisher","first-page":"3458","DOI":"10.1093\/mnras\/sty2834","volume":"482","author":"Murphy","year":"2019","journal-title":"MNRAS"},{"key":"2024040400023639400_bib35","first-page":"572","volume-title":"MNRAS","author":"Onken","year":"2022"},{"key":"2024040400023639400_bib36","doi-asserted-by":"publisher","first-page":"A96","DOI":"10.1051\/0004-6361\/202038306","volume":"645","author":"Pepe","year":"2021","journal-title":"A&A"},{"key":"2024040400023639400_bib37","doi-asserted-by":"publisher","first-page":"673","DOI":"10.1086\/173427","volume":"418","author":"Pier","year":"1993","journal-title":"ApJ"},{"key":"2024040400023639400_bib38","doi-asserted-by":"publisher","first-page":"A6","DOI":"10.1051\/0004-6361\/201833910","volume":"641","author":"Planck Collaboration VI","year":"2020","journal-title":"A&A"},{"key":"2024040400023639400_bib39","doi-asserted-by":"publisher","first-page":"27","DOI":"10.1016\/j.ascom.2017.03.003","volume":"19","author":"Prochaska","year":"2017","journal-title":"Astron. Comput."},{"key":"2024040400023639400_bib40","doi-asserted-by":"publisher","first-page":"16","DOI":"10.3847\/1538-3881\/aaf101","volume":"157","author":"Reis","year":"2019","journal-title":"AJ"},{"key":"2024040400023639400_bib41","doi-asserted-by":"publisher","first-page":"470","DOI":"10.1086\/506525","volume":"166","author":"Richards","year":"2006","journal-title":"ApJS"},{"key":"2024040400023639400_bib42","doi-asserted-by":"publisher","first-page":"319","DOI":"10.1086\/147385","volume":"136","author":"Sandage","year":"1962","journal-title":"ApJ"},{"key":"2024040400023639400_bib43","doi-asserted-by":"publisher","first-page":"5","DOI":"10.3847\/1538-4365\/ab20d0","volume":"243","author":"Schindler","year":"2019","journal-title":"ApJS"},{"key":"2024040400023639400_bib44","doi-asserted-by":"publisher","first-page":"258","DOI":"10.3847\/1538-4357\/aaf86c","volume":"871","author":"Schindler","year":"2019","journal-title":"ApJ"},{"key":"2024040400023639400_bib45","doi-asserted-by":"publisher","first-page":"24","DOI":"10.3847\/1538-4365\/abeb66","volume":"254","author":"Sevilla-Noarbe","year":"2021","journal-title":"ApJS"},{"key":"2024040400023639400_bib46","doi-asserted-by":"publisher","first-page":"1163","DOI":"10.1086\/498708","volume":"131","author":"Skrutskie","year":"2006","journal-title":"AJ"},{"key":"2024040400023639400_bib47","doi-asserted-by":"publisher","first-page":"68","DOI":"10.1086\/167986","volume":"346","author":"Sun","year":"1989","journal-title":"ApJ"},{"key":"2024040400023639400_bib48","doi-asserted-by":"publisher","first-page":"549","DOI":"10.1086\/321167","volume":"122","author":"Vanden\u00a0Berk","year":"2001","journal-title":"AJ"},{"key":"2024040400023639400_bib49","doi-asserted-by":"publisher","first-page":"A10","DOI":"10.1051\/0004-6361\/201014188","volume":"518","author":"V\u00e9ron-Cetty","year":"2010","journal-title":"A&A"},{"key":"2024040400023639400_bib50","doi-asserted-by":"publisher","first-page":"e010","DOI":"10.1017\/pasa.2018.5","volume":"35","author":"Wolf","year":"2018","journal-title":"Publ. Astron. Soc. Austr."},{"key":"2024040400023639400_bib51","doi-asserted-by":"publisher","first-page":"1970","DOI":"10.1093\/mnras\/stz2955","volume":"491","author":"Wolf","year":"2020","journal-title":"MNRAS"},{"key":"2024040400023639400_bib52","doi-asserted-by":"publisher","first-page":"1868","DOI":"10.1088\/0004-6256\/140\/6\/1868","volume":"140","author":"Wright","year":"2010","journal-title":"AJ"},{"key":"2024040400023639400_bib53","doi-asserted-by":"publisher","first-page":"33","DOI":"10.3847\/0004-637X\/829\/1\/33","volume":"829","author":"Yang","year":"2016","journal-title":"ApJ"}],"container-title":["Monthly Notices of the Royal Astronomical Society"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/mnras\/advance-article-pdf\/doi\/10.1093\/mnras\/stad1007\/49751309\/stad1007.pdf","content-type":"application\/pdf","content-version":"am","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/mnras\/article-pdf\/522\/2\/2019\/50096393\/stad1007.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/mnras\/article-pdf\/522\/2\/2019\/50096393\/stad1007.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,4,4]],"date-time":"2024-04-04T00:30:56Z","timestamp":1712190656000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/mnras\/article\/522\/2\/2019\/7104075"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,4,4]]},"references-count":53,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2023,4,21]]}},"URL":"https:\/\/doi.org\/10.1093\/mnras\/stad1007","relation":{},"ISSN":["0035-8711","1365-2966"],"issn-type":[{"value":"0035-8711","type":"print"},{"value":"1365-2966","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2023,6]]},"published":{"date-parts":[[2023,4,4]]}}}