J/A+A/461/509ivo://CDS.VizieR/J/A+A/461/509doi:10.26093/cds/vizier.34610509CDSPlatais I.Melo C.Mermilliod J.-C.Kozhurina-Platais V.Fulbright J.P.,Mendez R.A.Altmann M.Sperauskas J.2017-12-15T10:55:21Z2007-01-11T21:43:00ZCDS support team

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

cds-question@unistra.fropen-star-clusterschemical-abundancesccd-photometryproper-motionsradial-velocityYoung open clusters provide important clues to the interface between the main sequence and pre-main-sequence phases of stellar evolution. The young and nearby open cluster IC 2391 is well-suited to studies of these two evolutionary phases. We establish a bona fide set of cluster members and then analyze this set in terms of binary frequency, projected rotational velocities, [Fe/H], and lithium abundance. In the wake of the Hipparcos distance controversy for the Pleiades, we compare the main-sequence fitting distance modulus to the Hipparcos mean parallax for IC 2391.2007A&A...461..509Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/461/509CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/126/357 : Members of IC 2391 (Rolleston+ 1997)J/A+A/372/862 : Lithium abundances in IC 2602 and IC 2391 (Randich+, 2001)J/ApJS/134/103 : Low-mass members of IC 2391 (Barrado y Navascues+, 2001)J/MNRAS/355/959 : Proper motions of IC 2391 possible members (Dodd+, 2004)J/A+A/430/287 : XMM observations of IC 2391 stars (Marino+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/461/509https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/461/509http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/461/509https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/461/509https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/461/509http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/461/509GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/461/509/ic2391 (Catalog of positions, relative proper motions and photographic V-photometry in the region of open cluster IC 2391)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/461/509/ic2391?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/461/509/ic2391?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/461/509/ic2391?GETtext/xml+votable180.050000true127.10516694-54.293411110.005555555555555556Cone search capability for table J/A+A/461/509/table1 (Astrometry & photometry for IC 2391)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/461/509/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/461/509/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/461/509/table1?GETtext/xml+votable180.050000true129.101-54.01822220.0055555555555555565/9447 9452 6/37782-37783 37785-37787 37797 37812-37814 37817 37832 378341.5062136169708525e-19 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/461/509?format=asciiOpticaldefaultJ/A+A/461/509/ic2391Catalog of positions, relative proper motions and photographic V-photometry in the region of open cluster IC 2391recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqObject identifiermeta.id;meta.mainintprimaryNplates[1,12] Number of "plate pairs" (1)meta.id;instr.plateintRA2000Right ascension for epoch 2000.0 and in the ICRS reference system (i.e., equinox 2000.0)degpos.eq.ra;meta.mainDE2000Declination for the epoch 2000.0 and equinox 2000.0degpos.eq.dec;meta.mainpmRARelative proper motion in right ascension multiplied by cos(Dec)mas/yrpos.pm;pos.eq.rafloatpmDERelative proper motion in declinationmas/yrpos.pm;pos.eq.decfloatProbMembership probability%stat.valueintVelSimbad column added by the CDSmeta.ref.urlcharVmagPhotographic V-magnitudemagphot.mag;em.opt.VfloatFlag[0/1] flag indicating a possible image confusion if set equal to 1meta.code.errorintEWSimbad column added by the CDSmeta.notecharJ/A+A/461/509/table1Astrometry & photometry for IC 2391HD? HD numbermeta.idintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqObject identifiermeta.id;meta.mainintRAJ2000Right ascension (J2000), epoch=2000.0pos.eq.ra;meta.mainDEJ2000Declination (J2000), epoch=2000.0pos.eq.dec;meta.mainpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloatpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decfloatProbMembership probability%stat.valueintVmagV magnitude from CCD photometrymagphot.mag;em.opt.VfloatB-VB-V index from CCD photometry (1)magphot.color;em.opt.B;em.opt.VfloatJmagJ magnitude from 2MASS catalog (1)magphot.mag;em.IR.JfloatJ-KsJ-Ks index from 2MASS catalogmagphot.color;em.IR.J;em.IR.KfloatMemb[*] *: bona fide cluster membermeta.notecharRemRemarks on binarity (2)meta.notecharVXRStar number from Patten & Simon (1996ApJS..106..489P), VXR PSPC NNa in Simbadmeta.idcharJ/A+A/461/509/table3Coravel radial velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqObject identifiermeta.id;meta.mainintm_Seq[AB] Componentmeta.code.multipcharJDJulian datedtime.epochdoubleHRVHeliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_HRVEstimated standard error of radial velocitykm/sstat.errorfloatn_HRV[*] *: measurements obtained at the CASLEO2.2m telescope with the Lithuanian Coravelmeta.notecharJ/A+A/461/509/table5High-resolution FEROS spectroscopic observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqObject identifiermeta.id;meta.mainintS/NSignal-to-noise ratiostat.snrintB-VB-V index from CCD photometry (also in table1)magphot.color;em.opt.B;em.opt.VfloatJDJulian datedtime.epochdoubleHRVHeliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatl_vsiniLimit flag on vsinimeta.code.error;phys.veloc.rotatcharvsiniProjected rotation velocitykm/sphys.veloc.rotatfloatBin[SB2 ] Binary typemeta.notecharm_Seq[AB] Component of spectroscopic binarymeta.code.multipcharJ/A+A/461/509/table6Iron line list and equivalent widths of objects 665, 1560, 3359 and 4362IonIron ionphyscharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaWavelength0.1nmem.wlfloatEPExcitation potentialeVphys.atmol.excitationfloatSunEquivalent width of the Sun (1)0.1pmspect.line.eqWidthintEW665? Equivalent width of star No. 6650.1pmspect.line.eqWidthintnullableEW1560? Equivalent width of star No. 15600.1pmspect.line.eqWidthintnullableEW3359? Equivalent width of star No. 33590.1pmspect.line.eqWidthintnullableEW4362? Equivalent width of star No. 43620.1pmspect.line.eqWidthintnullable