J/A+A/643/A98ivo://CDS.VizieR/J/A+A/643/A98doi:10.26093/cds/vizier.36430098CDSHagelberg J.Engler N.Fontanive C.Daemgen S.Quanz S.P.Kuehn J.,Reggiani M.Meyer M.Jayawardhana R.Kostov V.2021-09-10T09:29:24Z2020-12-17T14:35:56ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsastrometrystellar-distancestellar-massesphotometryRecent surveys indicate that planets in binary systems are more abunda- nt than previously thought, which is in agreement with theoretical work on disc dynamics and planet formation in binaries. So far, most observational surveys, however, have focused on short-period planets in binaries, thus little is known about the occurrence rates of planets on longer periods (>10au). In order to measure the abundance and physical characteristics of wide-orbit giant exoplanets in binary systems, we have designed the 'VIsual Binary Exoplanet survey with Sphere' (VIBES) to search for planets in visual binaries. It uses the SPHERE instrument at VLT to search for planets in 23 visual binary and four visual triple systems with ages of <145Myr and distances of <150pc. We used the IRDIS dual-band imager on SPHERE to acquire high-contrast images of the sample targets. For each binary, the two components were observed at the same time with a coronagraph masking only the primary star. For the triple star, the tight components were treated as a single star for data reduction. This enabled us to effectively search for companions around 50 individual stars in binaries and four binaries in triples. We derived upper limits of <13.7% for the frequency of sub-stellar companions around primaries in visual binaries, <26.5% for the fraction of sub-stellar companions around secondaries in visual binaries, and an occurrence rate of <9.0% for giant planets and brown dwarfs around either component of visual binaries. We have combined our observations with literature measurements to astrometrically confirm, for the first time, that 20 binaries and two triple systems, which were previously known, are indeed physically bound. Finally, we discovered a third component of the binary HD 121336. The upper limits we derived are compatible with planet formation through the core accretion and the gravitational instability processes in binaries. These limits are also in line with limits found for single star and circumbinary planet search surveys.2020A&A...643A..98Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/643/A98CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)J/ApJ/856/23 : BANYAN. XI. The BANYAN {Sigma} algorithm (Gagne+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/643/A98https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/643/A98http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/643/A98https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/643/A98https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/643/A98http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/643/A98GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/643/A98/table3 (Association and moving group memberships probabilities for 27 stellar multiples calculating using Banyan and Gaia positions (table A1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/643/A98/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/643/A98/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/643/A98/table3?GETtext/xml+votable180.050000true6.037083-62.1845280.005555555555555556Cone search capability for table J/A+A/643/A98/table5 (*Mutli-epoch astrometry of the 27 visual binaries and triples (table A3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/643/A98/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/643/A98/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/643/A98/table5?GETtext/xml+votable180.050000true176.040417-53.7484170.0055555555555555566/358 16930 33996 34830 36346 37980 41973 42610 42734 42858 42943 42959 42978 42987 42989 43093-43094 43149 43157 43168 43367 43377 43522 44354 45453 47777 489057.952274030004205e-20 1.2934455535160846e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/643/A98?format=asciidefaultJ/A+A/643/A98/table3Association and moving group memberships probabilities for 27 stellar multiples calculating using Banyan and Gaia positions (table A1)NameNamemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeSpectral type (Gaia)src.spTypecharDistGaia distance (Cat. I/347)pcpos.distancefloatE_DistGaia distance upper error (Cat. I/347)pcstat.error;stat.maxfloate_DistGaia distance lower error (Cat. I/347)pcstat.errorfloatMGMoving group/Associationmeta.id.parentcharProb1Membership probability (Banyan) for first Moving group/Associationstat.probabilityfloatProb2? Membership probability (Banyan) for second Moving group/Associationstat.probabilityfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/643/A98/table5*Mutli-epoch astrometry of the 27 visual binaries and triples (table A3)NameNamemeta.id;meta.maincharDateObserving datetime.epochcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIP? HIP numbermeta.idintnullableRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeSpectral type (Gaia)src.spTypecharDistDistance (Gaia)pcpos.distancefloatPair[AB AC] Pair name in systemmeta.code.multipcharMassI? Main star masssolMassphys.massfloatnullableMassII? Secondary star masssolMassphys.massfloatnullableKmagI? Main star K magnitudemagphot.mag;em.IR.KfloatnullableKmagII? Secondary star K magnitudemagphot.mag;em.IR.KfloatnullableHmagI? Main star H magnitudemagphot.mag;em.IR.HfloatnullableHmagII? Secondary star H magnitudemagphot.mag;em.IR.HfloatnullableSepSeparation between starsarcsecpos.angDistance;src.orbitalfloatPAPosition angle of starsdegpos.posAngfloatRefPositional measurement literature reference (1)meta.ref;posint