J/A+A/667/A14ivo://CDS.VizieR/J/A+A/667/A14doi:10.26093/cds/vizier.36670014CDSPanahi A.Mazeh T.Zucker S.Latham D.W.Collins K.A.Rimoldini L.,Evans D.W.Eyer L.2023-11-07T10:43:59Z2023-02-22T14:08:55ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.freclipsing-binary-starsvisible-astronomyorbitsThe TESS team periodically issues a new list of transiting exoplanet candidates based on the analysis of the accumulating light curves obtained by the satellite. The list includes the estimated epochs, periods, and durations of the potential transits. As the point spread function (PSF) of TESS is relatively wide, follow-up photometric observations at higher spatial resolution are required in order to exclude apparent transits that are actually blended background eclipsing binaries (BEBs). The Gaia space mission, with its growing database of epoch photometry and high angular resolution, enables the production of distinct light curves for all sources included in the TESS PSF, up to the limiting magnitude of Gaia. This paper reports the results of an ongoing Gaia-TESS collaboration that uses the Gaia photometry to facilitate the identification of BEB candidates and even to confirm on-target candidates in some cases. We inspected the Gaia photometry of the individual sources included in the TESS PSF, searching for periodic dimming events compatible with their ephemerides and uncertainties, as published by TESS. The performance of the search depends mainly on the number of Gaia measurements during transit and their precision. Since February 2021, the collaboration has been able to confirm 126 on-target candidates and exclude 124 as BEBs. Since June 2021, when our search methodology matured, we have been able to identify on the order of 5% as on-target candidates and another 5% as BEBs. This synergistic approach is combining the complementary capabilities of two of the astronomical space missions of NASA and ESA. It serves to optimize the process of detecting new planets by making better use of the resources of the astronomical community.2022A&A...667A..14Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/667/A14CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/667/A14https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/667/A14http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/667/A14https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/667/A14https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/667/A14http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/667/A14GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/667/A14/tablea1 (On-target confirmations in Phase I search)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/667/A14/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/667/A14/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/667/A14/tablea1?GETtext/xml+votable180.050000true31.6171425-56.19895280.005555555555555556Cone search capability for table J/A+A/667/A14/tablea2 (BEBs in Phase I search)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/667/A14/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/667/A14/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/667/A14/tablea2?GETtext/xml+votable180.050000true121.0092847-26.16570330.005555555555555556Cone search capability for table J/A+A/667/A14/tablea3 (On-target confirmations in Phase II)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/667/A14/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/667/A14/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/667/A14/tablea3?GETtext/xml+votable180.050000true296.353968630.77997220.005555555555555556Cone search capability for table J/A+A/667/A14/tablea4 (BEBs in Phase II)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/667/A14/tablea4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/667/A14/tablea4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/667/A14/tablea4?GETtext/xml+votable180.050000true298.561284432.42581670.0055555555555555566/471 1220 1222 1271 1294 1460 1758 1826 1961 2022 2656 2696 2970-2971 3005 3013 3019 3024 3031-3032 3055 3058-3059 3070 3243 3263 3303 3484 3488 3638-3640 3670 3717 3848 3934 3955 3959 3961 3965 3984 4012 4020 4247 5015 6943 7410 7593 7791 7871 7897 8118 8864 9632 9931 10163 11404 11737 12142 13185 13216 13294 13296 13768 13898 13926 13955 13965 14049 14224 14281 14353 14439 14454 14625 14686 14729 14801 15124 15147 15199 15298 15384 15387 15449 15474 15481 15490 15504 15522 15560-15561 15664 15667 15686-15687 15695-15696 15714 15789 15805 15832 15849 15871 16113 16127 20666 20758 20781 20798 20800 20848 20956 20967 21415 21549 21590 21654-21655 21679 21726 21968 22092 22144 22499 23586 24629 28806 32095 32148 32153 32393 32825 32996 33110 33698 34499 36134 36327 36882 36911 36941 36984 37181 37342 37360 37370 37657 37677 37692 37711 37827 37897 37961 38028 38067 38431 38437 38451 38537 38543 38547 38562 38580 38665 39197 39205 39208 39273 39277 39313 39348 39352 39354 39359 39399 39403-39404 39406 39422 39475 39493 39578 39616 39686 39761 39784 39889 39912 39930 39950 39967 40077 40121 40216 40480 40489 40504 40582 40613 40712 40965 41021 41027 41067 41077 41112 41160 41281 41317 41364 41409 41435 41502 41541 41605 41667 41696 41795 41806 41926 41992 42099 42114 42117 42150 42376 42500 42525 42537 43057 43072 43074 43113 43155 43324 43526 43579 45105 45569 45635 45954 45985 47155 47205 47384 47829https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/667/A14?format=asciiOpticaldefaultJ/A+A/667/A14/tablea1On-target confirmations in Phase I searchPorbTESS Orbital perioddtime.perioddoublee_PorbTESS Orbital period errordstat.errordoubleDurTESS Transit durationdtime.durationdoublee_DurTESS Transit duration errordstat.errordoubleDepthTESS Transit depth (in ppt)src.var.amplitudedoublee_DepthTESS Transit depth error (in ppt)stat.error;phys.absorption.opticalDepthdoubleSimbadSimbad column added by the CDSmeta.ref.urlcharNNumber of measurements in Gaia light curvemeta.numberintNITNumber of in-transit measurement in Gaia light curvemeta.numberintS/NTGaia expected signal-to-noise ratiostat.snrfloatDepthGDerived depth of the Gaia transit (or eclipse in case of a BEB) (in ppt)src.var.amplitudefloate_DepthG? Gaia transit depth error (in ppt) (1)stat.errorfloatnullable_RAPositions from TIC (Cat. IV/38) (right ascension part)degpos.eq.ra;meta.main_DEPositions from TIC (Cat. IV/38) (declination part)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNote[C] C for Transit confirmations in binary systemsmeta.notecharSeqSequential numbermeta.recordintTOITOI designationmeta.id;meta.mainfloatTICTESS identification numbermeta.idJ/A+A/667/A14/tablea2BEBs in Phase I searchSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential numbermeta.recordintTOITOI designationmeta.id;meta.mainfloatTICTESS identification numbermeta.idPorbTESS Orbital perioddtime.perioddoublee_PorbTESS Orbital period errordstat.errordoubleDurTESS Transit durationdtime.durationdoublee_DurTESS Transit duration errordstat.errordoubleDepthTESS Transit depth (in ppt)src.var.amplitudedoublee_DepthTESS Transit depth error (in ppt)stat.error;phys.absorption.opticalDepthdoubleNNumber of measurements in Gaia light curvemeta.numberintNITNumber of in-transit measurement in Gaia light curvemeta.numberintS/NTGaia expected signal-to-noise ratiostat.snrfloatDepthGDerived depth of the Gaia transit (or eclipse in case of a BEB) (in ppt)src.var.amplitudefloate_DepthG? Gaia transit depth error (in ppt) (1)stat.errorfloatnullable_RAPositions from TIC (Cat. IV/38) (right ascension part)degpos.eq.ra;meta.main_DEPositions from TIC (Cat. IV/38) (declination part)degpos.eq.dec;meta.mainJ/A+A/667/A14/tablea3On-target confirmations in Phase IISimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNote[C] C for Transit confirmations in binary systemsmeta.notecharSeqSequential numbermeta.recordintTOITOI designationmeta.id;meta.mainfloatTICTESS identification numbermeta.idPorbTESS Orbital perioddtime.perioddoublee_PorbTESS Orbital period errordstat.errordoubleDurTESS Transit durationdtime.durationdoublee_DurTESS Transit duration errordstat.errordoubleDepthTESS Transit depth (in ppt)src.var.amplitudedoublee_DepthTESS Transit depth error (in ppt)stat.error;phys.absorption.opticalDepthdoubleNNumber of measurements in Gaia light curvemeta.numberintNITNumber of in-transit measurement in Gaia light curvemeta.numberintS/NTGaia expected signal-to-noise ratiostat.snrfloatDepthGDerived depth of the Gaia transit (or eclipse in case of a BEB) (in ppt)src.var.amplitudefloate_DepthG? Gaia transit depth error (in ppt) (1)stat.errorfloatnullable_RAPositions from TIC (Cat. IV/38) (right ascension part)degpos.eq.ra;meta.main_DEPositions from TIC (Cat. IV/38) (declination part)degpos.eq.dec;meta.mainJ/A+A/667/A14/tablea4BEBs in Phase IITOITOI designationmeta.id;meta.mainfloatTICTESS identification numbermeta.idPorbTESS Orbital perioddtime.perioddoublee_PorbTESS Orbital period errordstat.errordoubleDurTESS Transit durationdtime.durationdoublee_DurTESS Transit duration errordstat.errordoubleDepthTESS Transit depth (in ppt)src.var.amplitudedoublee_DepthTESS Transit depth error (in ppt)stat.error;phys.absorption.opticalDepthdoubleNNumber of measurements in Gaia light curvemeta.numberintNITNumber of in-transit measurement in Gaia light curvemeta.numberintS/NTGaia expected signal-to-noise ratiostat.snrfloatDepthGDerived depth of the Gaia transit (or eclipse in case of a BEB) (in ppt)src.var.amplitudefloate_DepthG? Gaia transit depth error (in ppt) (1)stat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from TIC (Cat. IV/38) (right ascension part)degpos.eq.ra;meta.main_DEPositions from TIC (Cat. IV/38) (declination part)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential numbermeta.recordint