Stellar companions of exoplanet host starsJ/MNRAS/421/2498ivo://CDS.VizieR/J/MNRAS/421/2498doi:10.26093/cds/vizier.74212498CDSGinski C.Mugrauer M.Seeliger M.Eisenbeiss T.2024-07-17T20:15:08Z2013-03-26T12:02:45ZCDS support team
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
cds-question@unistra.frmultiple-starssolar-system-planetsTo understand the influence of additional wide stellar companions on planet formation, it is necessary to determine the fraction of multiple stellar systems amongst the known extrasolar planet population. We target recently discovered radial velocity exoplanetary systems observable from the Northern hemisphere and with sufficiently high proper motion to detect stellar companions via direct imaging. We utilize the Calar Alto 2.2-m telescope in combination with its lucky imaging camera AstraLux. 71 planet host stars have been observed so far, yielding one new low-mass (0.239+/-0.022M_{sun}_) stellar companion, 4.5-arcsec (227 au of projected separation) north-east of the planet host star HD 185269, detected via astrometry with AstraLux. We also present follow-up astrometry on three previously discovered stellar companions, showing for the first time common proper motion of the 0.5-arcsec companion to HD 126614. Additionally, we determined the achieved detection limits for all targets, which allow us to characterize the detection space of possible further companions of these stars.2012MNRAS.421.2498Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/421/2498CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/421/2498https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/421/2498http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/421/2498https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/421/2498https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/421/2498http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/421/2498GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/421/2498/table6 (List of all stars with companions and companion candidates detected)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/421/2498/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/421/2498/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/421/2498/table6?GETtext/xml+votable180.050000true34.197414443.77299750.005555555555555556Cone search capability for table J/MNRAS/421/2498/table7 (List of all stars with no additional stellar components detected)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/421/2498/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/421/2498/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/421/2498/table7?GETtext/xml+votable180.050000true4.674167-8.0530.0055555555555555566/341 725 1544 2152 2254 2374 2416 2497 2596 3118 3536 3876 3932 3979 4136 4285 5067 5309 5488 5815 7136 7746 8357 8843 9459 9483 9662 9753 9843 9893 11087 11326 11473 12024 12030 12146 12306 13643 14434 14522 14548 14896 15273 16035 16707 16823 17266 17587 18028 18747 19904 21406 23030 23646 24924 25875 26120 26183 26242 27220 28548 30526 30541 30770 31216 31494 32491 32509 32561 36078 44740https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/421/2498?format=asciidefaultJ/MNRAS/421/2498/table6List of all stars with companions and companion candidates detectedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.maincharObsDateEpoch of observationtime.epochnullableNfrNumber of frames (G1)meta.numberintM0.5Minimum mass detectable at 0.5-arcsec (G2)solMassphys.massfloate_M0.5rms uncertainty on M0.5solMassstat.errorfloatM1Minimum mass detectable at 1-arcsec (G2)solMassphys.massfloate_M1rms uncertainty on M1solMassstat.errorfloatM2Minimum mass detectable at 2-arcsec (G2)solMassphys.massfloate_M2rms uncertainty on M2solMassstat.errorfloatM5Minimum mass detectable at 5-arcsec (G2)solMassphys.massfloate_M5rms uncertainty on M5solMassstat.errorfloatSimbadSimbad column added by the CDSmeta.refchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main
J/MNRAS/421/2498/table7List of all stars with no additional stellar components detectedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.maincharn_Star[a] Unresolved companion (1)meta.notecharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainObsDateEpoch of observationtime.epochnullableNfrNumber of frames (G1)meta.numberintl_M0.5Limit flag on M0.5meta.code.errorcharM0.5Minimum mass detectable at 0.5-arcsec (G2)solMassphys.massfloate_M0.5? rms uncertainty on M0.5solMassstat.errorfloatnullablel_M1Limit flag on M1meta.code.errorcharM1Minimum mass detectable at 1-arcsec (G2)solMassphys.massfloate_M1? rms uncertainty on M1solMassstat.errorfloatnullablel_M2Limit flag on M2meta.code.errorcharM2Minimum mass detectable at 2-arcsec (G2)solMassphys.massfloate_M2? rms uncertainty on M2solMassstat.errorfloatnullablel_M5Limit flag on M5meta.code.errorcharM5Minimum mass detectable at 5-arcsec (G2)solMassphys.massfloate_M5? rms uncertainty on M5solMassstat.errorfloatnullableSimbadSimbad column added by the CDSmeta.refchar