J/A+A/367/111ivo://CDS.VizieR/J/A+A/367/111doi:10.26093/cds/vizier.33670111CDSde Bruijne J.H.J.Hoogerwerf R.de Zeeuw P.T.2001-02-11T21:04:27Z2001-02-11T22:04:15ZCDS support team

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

cds-question@unistra.fropen-star-clustersradial-velocitystellar-distancevisible-astronomytrigonometric-parallaxHipparcos trigonometric parallaxes fix distances to individual stars in the Hyades cluster with an accuracy of about 6 percent. We use the Hipparcos and Tycho-2 proper motions, which have a larger relative precision than the Hipparcos trigonometric parallaxes, to derive 3 times more precise distance estimates, by assuming that all members share the same space motion. These so-called secular parallaxes are, as a set, statistically consistent with the Hipparcos parallaxes (Section 6). Table A1 contains, for all 218 members identified by Perryman et al. (1998A&A...331...81P; see also Cat. <J/A+A/331/81>; see Sections 4.1 and 5.1), the trigonometric parallaxes, the Hipparcos and Tycho-2 secular parallaxes, their errors and goodness-of-fit parameters (Sections 2.2 and 5.4), as well as fundamental stellar parameters (Section 9) based on the Hipparcos secular parallaxes and the V-band magnitudes (field H5) and B-V colours (field H37) listed in the Hipparcos Catalogue (1997HIP...C......0E; Cat. <I/239>). Table A2 lists 15 new Hyades candidates (see Sections 4.2 and 5.2) selected by the membership methods developed by de Bruijne (1999MNRAS.306..381D) and Hoogerwerf et al. (1999MNRAS.306..394H) which use proper motion and trigonometric parallax data. Based on photometric, radial velocity, and secular parallax data, we conclude that only one of these stars (HIP 19757) is a likely new member (see Sections 4.2 and 5.2 for details).2001A&A...367..111Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/367/111CatalogResearchIsServedByTAP VizieR generic servicerelated-toI/239 : The Hipparcos and Tycho Catalogues (ESA 1997)I/259 : The Tycho-2 Catalogue (Hog+ 2000)III/190 : WEB Catalog of Radial Velocities (Duflot+ 1995)J/A+A/331/81 : Hyades membership (Perryman+ 1998)http://www.ari.uni-heidelberg.de/dmubin : The {Delta}{mu} binary homepagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/367/111https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/367/111http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/367/111https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/367/111https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/367/111http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/367/111GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/367/111/tablea1Hyades members from Perryman+ (1998, Cat. <J/A&A/331/81>)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPHipparcos number (field H1 in Cat. <I/239>)meta.id;meta.mainintTYC1? Tycho identifier (part 1; field T1 in Cat. <I/239>; see also Cat. <I/259>)meta.idintnullableTYC2? Tycho identifier (part 2)meta.idintnullableTYC3? Tycho identifier (part 3)meta.idintnullablePlxHipparcos trigonometric parallax (field H11 in Cat. <I/239>)maspos.parallax.trigfloate_PlxStandard error in Plx (field H16 in Cat. <I/239>)masstat.errorfloatPlxsHHipparcos secular parallaxmaspos.parallax.trigfloate_PlxsHError in PlxsHmasstat.errorfloatq_PlxsHGoodness-of-fit parameter of PlxsH (G1)meta.code.qualfloatPlxsT? Tycho-2 secular parallaxmaspos.parallax.trigfloatnullablee_PlxsT? Error in PlxsTmasstat.errorfloatnullableq_PlxsT? Goodness-of-fit parameter of PlxsT (G1)meta.code.qualfloatnullableMassStellar mass from section 5.3 in Perryman+ (1998A&A...331...81P). See also Section 9.4.5solMassphys.massfloatlogTeff? Logarithm of effective temperaturelog(K)phys.temperature.effectivefloatnullablee_logTeff? Error in logTefflog(K)stat.errorfloatnullableBCVmag? Bolometric correction in V-bandmagphot.mag.bcfloatnullablee_BCVmag? Error in BCVmagmagstat.errorfloatnullablelogLum? Logarithm of luminositylog(solLum)phys.luminosityfloatnullablee_logLum? Error in logLumlog(solLum)stat.errorfloatnullablelogg? Logarithm of surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg? Error in logglog(cm.s**-2)stat.errorfloatnullablen_Mass1[0-1] Note on stellar mass: 1: optical companion was not counted in the massmeta.noteintn_Mass2[0-1] Note on stellar mass: 1: particularly uncertain mass (from Perryman+; 1998A&A...331...81P)meta.noteintn_RVel[0-2] Note on binarity from radial velocities 1: spectroscopic binary (2) 2: radial velocity variable (2)meta.noteintn_CCDM[0-3] Hipparcos historical CCDM status flag (field H56 in Cat. <I/239>) (G2)meta.noteintMultFlag[0-7] Hipparcos duplicity flags H59 and H61 (Cat. <I/239>) (G3)meta.codeintvarType[0-5] Hipparcos photometric variability flag H52 (Cat. <I/239>) (5)meta.code;src.varintCal[0-2] Flag indicating which calibration was used to obtain logTeff, BCVmag, logLum, and logg: 1: calibration 1 (Section 9.4.2) 2: calibration 2 (Section 9.4.3)meta.codeintMemb[0-8] Membership information (6)meta.code.memberintNote[0-1] Index to notes: 1: note in notes.dat filemeta.noteintJ/A+A/367/111/notesIndividual notes to table A1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPHipparcos (Cat. <I/239>) numbermeta.id;meta.mainintNoteText of the notemeta.notecharJ/A+A/367/111/tablea2New Hyades candidate membersq_PlxsHGoodness-of-fit parameter of PlxsH (G1)meta.code.qualfloatTYC3Tycho identifier (part 3)meta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPHipparcos identifier (field H1 in Cat. <I/239>)meta.id;meta.mainintTYC1Tycho identifier (part 1; field T1 in Cat. <I/239>; see also Cat. <I/259>)meta.idintTYC2Tycho identifier (part 2)meta.idintPlxHipparcos trigonometric parallax (field H11 in Cat. <I/239>)maspos.parallax.trigfloate_PlxStandard error in Plx (field H16 in Cat. <I/239>)masstat.errorfloatRVel? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RVel? Error in RVelkm/sstat.errorfloatnullabler_RVel? [1,S] Source of RVel (1)meta.refcharn_RVel? [RV] RV: Radial velocity variable. From Duflot+ (1995A&AS..114..269D; Cat. <III/190>)meta.notecharn_CCDM? [HIM] Historical CCDM status flag (field H56 in Cat. <I/239>) (G2)meta.notecharMultFlag? [CGOVX S] Double/Multiple Systems flag (fields H59 and H61 in Cat. <I/239>) (G3)meta.codecharR3DThree-dimensional distance from the cluster center of mass defined by 180 stars (see table 3 in Perryman+; 1998A&A...331...81P), based on Hipparcos trigonometric parallax (Plx)pcpos.distancefloatStat? Kinematic membership statistic from Perryman+ (1998A&A...331...81P) (4)statfloatnullableMemb1? [0-1] Final membership assigned by Perryman+ (1998A&A...331...81P): 0: non-member 1: member (no entries in this table)meta.code.memberintnullableMemb2? [0-1] Membership `probability' from Hoogerwerf+ (1999MNRAS.306..394H; their symbol S in their section 2.4)meta.code.memberfloatnullableMemb3? [0-1] Membership probability from de Bruijne (1999MNRAS.306..381D; his symbol p in his section 2.4.4)meta.code.memberfloatnullablePlxsHHipparcos secular parallaxmaspos.parallax.trigfloate_PlxsHError in PlxsHmasstat.errorfloatPlxsT? Tycho-2 secular parallaxmaspos.parallax.trigfloatnullablee_PlxsT? Error in PlxsTmasstat.errorfloatnullableq_PlxsT? Goodness-of-fit parameter of PlxsT (G1)meta.code.qualfloatnullableNote? Remarks (6)meta.notechar