J/AJ/127/3579ivo://CDS.VizieR/J/AJ/127/3579doi:10.26093/cds/vizier.51273579CDSPaulson D.B.Cochran W.D.Hatzes A.P.2023-04-06T16:51:05Z2007-03-29T17:44:24ZCDS support team

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

cds-question@unistra.fropen-star-clustersradial-velocityWe present the results of a radial velocity survey of a sample of Hyades stars and discuss the effects of stellar activity on radial velocity measurements. The level of radial velocity scatter due to rotational modulation of stellar surface features for the Hyades is in agreement with the 1997 predictions of Saar and Donahue (1997ApJ...485..319S) - the maximum radial velocity rms of up to ~50m/s, with an average rms of ~16m/s. In this sample of 93 stars we find one new binary, two stars with linear trends indicative of binary companions, and no close-in giant planets. We discuss the limits on extrasolar planet detection in the Hyades and the constraints imposed on radial velocity surveys of young stars.2004AJ....127.3579Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/127/3579CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/127/3579https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/127/3579http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/127/3579https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/127/3579https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/127/3579http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/127/3579GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/127/3579/stars (Star positions (from Simbad))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/127/3579/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/127/3579/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/127/3579/stars?GETtext/xml+votable180.050000true75.203754.7330560.0055555555555555565/5884 6/60 75 78 251 272 309 320 322-323 334 336 342 348 357 373 456 483 497 835 890 917 1024-1025 1032 1042 1058 1075 1096 23017 23130 23276 23286 23313 23321 23450 23454 23478-23479 23497 23502-23504 23511 23514 23518 23523-23525 23527 23529 23533-23535 23540 23542 23544 23547-23548 24068 24099 24104 24192 24194 24207 24209 24232 24251 24506https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/127/3579?format=asciiOpticaldefaultJ/AJ/127/3579/starsStar positions (from Simbad)PlotPlot the Radial Velocity curvesmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharprimaryRAJ2000? Simbad right ascension (J2000)pos.eq.ra;meta.mainnullableDEJ2000? Simbad declination (J2000)pos.eq.dec;meta.mainnullableSNameSimbad namemeta.idcharSimbadSimbad column added by the CDScharJ/AJ/127/3579/table1Radial Velocity ObservationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharJDJulian date of observationdtime.epochdoubleRVRadial velocitym/sspect.dopplerVeloc;pos.heliocentricdoublee_RVThe 1{sigma} error in RVm/sstat.error;spect.dopplerVelocfloat