J/MNRAS/527/3183ivo://CDS.VizieR/J/MNRAS/527/3183doi:10.26093/cds/vizier.75273183CDSMichel K.-U.Mugrauer M.2026-08-03T07:33:05Z2024-02-20T14:40:17ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsvisible-astronomyWe conduct a survey, which explores the data releases of the ESA-Gaia mission, in order to investigate the multiplicity of exoplanet hosts at distances of less than 625pc around the Sun. With the accurate Gaia astrometry we are able to detect stellar and substellar companions of exoplanet hosts by proving the equidistance and common proper motion of these objects. Furthermore, by using the astro- and photometric data provided by the ESA-Gaia mission, we characterize the nature of the identified companions (substellar, stellar, main-sequence, or evolved), determine their properties (mass, effective temperature, and projected separation to the associated exoplanet host), and verify their orbital stability. In addition to main-sequence stars, the companions detected in this study include several brown and white dwarfs. So far in the course of our survey, the multiplicity of more than 2200 exoplanet hosts could be investigated, yielding a multiplicity rate of about 16 per cent (increased to about 19 per cent including published detections from other surveys). Finally, the derived physical properties of the companions were used to investigate the impact of the stellar multiplicity on the properties of the exoplanets and their hosts. In general, there are significant differences in the properties of these objects, dependent on the multiplicity status of their host system, e.g. higher masses of both planets and exoplanet hosts in multiple star systems. Furthermore, the masses and orbital eccentricities of multiple star planets significantly depend on the gravitational impact, induced by the companion star of the exoplanet host.2024MNRAS.527.3183Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/527/3183CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/355 : Gaia DR3, part 1 (Gaia Collaboration, 2022)J/MNRAS/490/5088 : Stellar companions of exoplanet host starsJ/other/FrASS/8.624907 : (Sub)Stellar companions of exoplanet hostsJ/AN/341/996 : Stellar companions of (C)TOIs (Mugrauer+, 2020)J/AN/342/840 : Stellar companions of (C)TOIs (Mugrauer+, 2021)J/AN/343/24017 : Stellar companions of (C)TOIs (Mugrauer+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/527/3183https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/527/3183http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/527/3183https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/527/3183https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/527/3183http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/527/3183GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/527/3183/table2 (Astrometry and photometry of planet hosts and companions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/527/3183/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/527/3183/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/527/3183/table2?GETtext/xml+votable180.050000true0.185557465-54.830832817920.005555555555555556Cone search capability for table J/MNRAS/527/3183/table4 (Equatorial coordinates and properties of companions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/527/3183/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/527/3183/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/527/3183/table4?GETtext/xml+votable180.050000true0.18443335874-54.82999470870.0055555555555555566/279 318 365 391 876 1040 1054 1063 1066 1075 1201 1330 1585 1597 2250 2335 2472 2711 2737 3715 4688 4698 4700 4716 4881 4988 5009 5170 5207 5413 5614 5718 5730 5854 6006 6017 6181 6638 6831 7240 7264 7402 7652 8054 8197 8235 8478 8825 8992 9482 9653 9839 10380 10490 10701 10730 11177 11267 11279 11455 11671 11686 11732 11987 12482 12612 12899 12935 12983 13128 13423 13464 13702 14054 14191 14412 14419 14434 14522 14525 14567 14579 14584 14586 14591 14667 14682 14744 14752-14753 14756-14757 14759-14760 14765 14767 14777 14779 14794 14816 14827 14830 14886 14914 14918-14919 14921 14924 14928 14930-14931 14933-14934 14938-14940 14953 14957-14959 14961 14963 14966 14970 14972-14973 14975 14993 15043-15044 15052 15062 15104 15115 15129 15132 15134 15137 15139 15146-15149 15154 15160 15171-15172 15174 15200 15252 15354 15910 16035 16301 16405 16432 16512 16667 17172 17341 17344 17496 17730 17764 17819 18022 18112 18164 18329 18435 18510 18707 18800 18835 19371 19476 20339 20381 20453 20538 20682 21003 21076 21206 21254 21820 21986 21989 22001 22015 22252 22505 22708 22773 23201 24115 24428 25193 25401 25424 25427 25463 25466 25604 25795 25829 25875 26019 26242 26252 26707 26768 26844 26990 27078 27083 27085 27088 27332-27333 27393 27488 27780 28044 28258 28274 28392 28433 29246 29349 29852 30450 30466 30485 30505 30801 31428 31450 31860 32501 32575 32652 32749 32811 32930 33116 33160 33182 33212 33220-33221 33243 33974 34370 34423 34471 34526 34643 34751 34860 34902 34986 35039 35079 35210 35362 35415 35532 35590 35786 35954 35968 35985 36196-36197 36390 36643 36759 36794 36948 36956 37274 37573 37955 38233 38238 38311 38381 39007 39257 39474 39504 39673 39807 40189 40355 40400 40862 40968 40985 41109 41179 41515 41759 42101 42714 42760 42808 42958 42980 42983 42989 43180 43233 43544 43677 43911 44096 44139 44143 44228 44293 44378-44379 44404 44436 44740 45041 45108 45168 45258 45382 45564 45865 45890 46287 46306 46333 46458 46789 47168 48005 48076 48178 48251 48415 48530 48747 489451.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/527/3183?format=asciiOpticaldefaultJ/MNRAS/527/3183/table2Astrometry and photometry of planet hosts and companions_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexedn_Name[*] * for exoplanet hostmeta.notecharSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPlxGaia DR3 parallaxmaspos.parallaxdoublee_PlxError of parallaxmasstat.error;pos.parallaxfloatpmRAGaia DR3 proper motion in right ascension, pmRA*cosDEmas/yrpos.pm;pos.eq.radoublee_pmRAError of proper motion in right ascensionmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEGaia DR3 proper motion in declinationmas/yrpos.pm;pos.eq.decdoublee_pmDEError of proper motion in declinationmas/yrstat.error;pos.pm;pos.eq.decfloatepsi? Gaia DR3 astrometric excess noisemasstat.fit.paramfloatnullablesepsi? Gaia DR3 significance of astrometric excess noisestat.fit.paramdoublenullableGmagGaia DR3 G-band mean magnitudemagphot.mag;em.optfloate_GmagError of Gaia DR3 G-band mean magnitudemagstat.error;phot.magfloatAG? Estimate of G-band extinctionmagphys.absorptionfloatnullablee_AG? Lower error of G-band extinctionmagstat.errorfloatnullableE_AG? Upper error of G-band extinctionmagstat.error;stat.maxfloatnullableRA_ICRSRight Ascension (ICRS) at Ep=2016.0degpos.eq.ra;meta.mainDE_ICRSDeclination (ICRS) at Ep=2016.0degpos.eq.dec;meta.mainNameStar Namemeta.id;meta.maincharNote1[x] x if AG is derived from AVmeta.notecharJ/MNRAS/527/3183/table3Relative astrometry of companionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of stellar companion (1)meta.id;meta.maincharrhoAngular separationarcsecpos.angDistancedoublee_rhoError of angular separationarcsecstat.errordoublePAPosition angledegpos.posAngdoublee_PAError of position angledegstat.errordoubleDplxParallax differencemaspos.parallax;arith.difffloate_DplxError of parallax differencemasstat.errorfloatsDplxSignificance of parallax differencestat.fit.goodnessfloatsDplx-epsi? Significance of parallax difference including epsistat.fit.goodnessfloatnullablemu-relDifferential proper motion (2)mas/yrpos.pm;arith.difffloate_mu-relError of differential proper motionmas/yrstat.errorfloatsmu-relSignificance of differential proper motionstat.fit.goodnessfloatCPMCommon Proper Motion Index (3)meta.code.multipfloatJ/MNRAS/527/3183/table4Equatorial coordinates and properties of companionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of (sub)stellar companionmeta.id;meta.maincharRA_ICRSRight Ascension (ICRS) at Ep=2016.5degpos.eq.ra;meta.mainDE_ICRSDeclination (ICRS) at Ep=2016.5degpos.eq.dec;meta.mainGMAGAbsolute magnitude in G-bandmagphys.magAbsfloatSepProjected separation to the exoplanet hostaupos.angDistanceintl_Mass[~] Limit flag on Massmeta.code.error;phys.masscharMassMass of (sub)stellar companionsolMassphys.masscharTeff? Effective temperatureKphys.temperature.effectivecharNote[WD] WD if companion is a white dwarfmeta.notechar