{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T01:42:32Z","timestamp":1773452552016,"version":"3.50.1"},"reference-count":43,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2023,11,14]],"date-time":"2023-11-14T00:00:00Z","timestamp":1699920000000},"content-version":"vor","delay-in-days":5,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100010663","name":"European Research Council","doi-asserted-by":"publisher","award":["803193\/BEBOP"],"award-info":[{"award-number":["803193\/BEBOP"]}],"id":[{"id":"10.13039\/100010663","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000275","name":"Leverhulme Trust","doi-asserted-by":"publisher","award":["RPG-2018-418"],"award-info":[{"award-number":["RPG-2018-418"]}],"id":[{"id":"10.13039\/501100000275","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,11,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n               <jats:p>Ongoing ground-based radial-velocity observations seeking to detect circumbinary planets focus on single-lined binaries even though over 9 in every 10 binary systems in the solar neighbourhood are double lined. Double-lined binaries are on average brighter, and should in principle yield more precise radial velocities. However, as the two stars orbit one another, they produce a time-varying blending of their weak spectral lines. This makes an accurate measure of radial velocities difficult, producing a typical scatter of $10{\\!-\\!}15~\\rm m\\, s^{-1}$. This extra noise prevents the detection of most orbiting circumbinary planets. We develop two new data-driven approaches to disentangle the two stellar components of a double-lined binary, and extract accurate and precise radial velocities. Both approaches use a Gaussian process regression, with the first one working in the spectral domain, whereas the second works on cross-correlated spectra. We apply our new methods to TIC 172900988, a proposed circumbinary system with a double-lined binary, and detect a circumbinary planet with an orbital period of $150~\\rm d$, different than previously proposed. We also measure a significant residual scatter, which we speculate is caused by stellar activity. We show that our two data-driven methods outperform the traditionally used TODCOR and TODMOR, for that particular binary system.<\/jats:p>","DOI":"10.1093\/mnras\/stad3136","type":"journal-article","created":{"date-parts":[[2023,11,14]],"date-time":"2023-11-14T18:48:46Z","timestamp":1699987726000},"page":"2261-2278","source":"Crossref","is-referenced-by-count":12,"title":["New methods for radial-velocity measurements of double-lined binaries, and detection of a circumbinary planet orbiting TIC 172900988"],"prefix":"10.1093","volume":"527","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8102-3033","authenticated-orcid":false,"given":"Lalitha","family":"Sairam","sequence":"first","affiliation":[{"name":"School of Physics and Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT , UK"},{"name":"Institute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA , UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5510-8751","authenticated-orcid":false,"given":"Amaury H M J","family":"Triaud","sequence":"additional","affiliation":[{"name":"School of Physics and Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT , UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3300-3449","authenticated-orcid":false,"given":"Thomas A","family":"Baycroft","sequence":"additional","affiliation":[{"name":"School of Physics and Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT , UK"}]},{"given":"Jerome","family":"Orosz","sequence":"additional","affiliation":[{"name":"Department of Astronomy, San Diego State University , 5500 Campanile Drive, San Diego, CA 92182 , USA"}]},{"given":"Isabelle","family":"Boisse","sequence":"additional","affiliation":[{"name":"Aix Marseille Univ, CNRS , CNES, LAM, Aix Marseille Univ, F-13007 Marseille , France"}]},{"given":"Neda","family":"Heidari","sequence":"additional","affiliation":[{"name":"Institut d\u2019astrophysique de Paris , UMR 7095 CNRS Universit\u00e9 Pierre et Marie Curie, 98 bis, Boulevard Arago, F-75014 Paris , France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2214-9258","authenticated-orcid":false,"given":"Daniel","family":"Sebastian","sequence":"additional","affiliation":[{"name":"School of Physics and Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT , UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3937-630X","authenticated-orcid":false,"given":"Georgina","family":"Dransfield","sequence":"additional","affiliation":[{"name":"School of Physics and Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT , UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7595-6360","authenticated-orcid":false,"given":"David V","family":"Martin","sequence":"additional","affiliation":[{"name":"Department of Physics and Astronomy, Tufts University , 574 Boston Avenue, Medford, MA 02155 , USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3586-1316","authenticated-orcid":false,"given":"Alexandre","family":"Santerne","sequence":"additional","affiliation":[{"name":"Aix Marseille Univ, CNRS , CNES, LAM, Aix Marseille Univ, F-13007 Marseille , France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7608-8905","authenticated-orcid":false,"given":"Matthew R","family":"Standing","sequence":"additional","affiliation":[{"name":"School of Physical Sciences, The Open University , Milton Keynes, MK7 6AA , UK"}]}],"member":"286","published-online":{"date-parts":[[2023,11,14]]},"reference":[{"key":"2023111418032452500_bib1","doi-asserted-by":"publisher","first-page":"A51","DOI":"10.1051\/0004-6361\/201322551","volume":"560","author":"Adibekyan","year":"2013","journal-title":"A&A"},{"key":"2023111418032452500_bib2","doi-asserted-by":"publisher","first-page":"2408","DOI":"10.1093\/mnras\/stw706","volume":"459","author":"Aigrain","year":"2016","journal-title":"MNRAS"},{"key":"2023111418032452500_bib3","doi-asserted-by":"publisher","first-page":"373","DOI":"10.1051\/aas:1996251","volume":"119","author":"Baranne","year":"1996","journal-title":"A&AS"},{"key":"2023111418032452500_bib4","doi-asserted-by":"publisher","first-page":"1871","DOI":"10.1093\/mnras\/stad607","volume":"521","author":"Baycroft","year":"2023","journal-title":"MNRAS"},{"key":"2023111418032452500_bib5","doi-asserted-by":"publisher","first-page":"121","DOI":"10.1016\/0019-1035(84)90102-7","volume":"58","author":"Borucki","year":"1984","journal-title":"Icarus"},{"key":"2023111418032452500_bib6","doi-asserted-by":"publisher","first-page":"853","DOI":"10.1051\/0004-6361\/200912427","volume":"505","author":"Bouchy","year":"2009","journal-title":"A&A"},{"key":"2023111418032452500_bib7","doi-asserted-by":"publisher","first-page":"1","DOI":"10.18637\/jss.v086.i07","volume":"86","author":"Brewer","year":"2018","journal-title":"J. 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