J/MNRAS/368/471ivo://CDS.VizieR/J/MNRAS/368/471doi:10.26093/cds/vizier.73680471CDSD'Orazi V.Bragaglia A.Tosi M.Fabrizio L.D.Held E.V.2024-07-02T20:17:26Z2010-07-01T16:20:51ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryvisible-astronomybroad-band-photometryradial-velocityWe have obtained medium- and low-resolution spectroscopy and BVI CCD imaging of Berkeley 32, an old open cluster which lies in the anticentre direction. From the radial velocities of 48 stars in the cluster direction, we found that 31 of them, in crucial evolutionary phases, are probable cluster members, with an average radial velocity of +106.7(sigma=8.5)km/s . From isochrone fitting to the colour-magnitude diagrams of Berkeley 32, we have obtained an age of 6.3Gyr, (m-M)0=12.48 and E(B-V)=0.10. The best fit is obtained with Z=0.008. A consistent distance, (m-M)_0_~=12.6+/-0.1, has been derived from the mean magnitude of red clump stars with confirmed membership; we may assume (m-M)_0_~=12.55+/-0.1. The colour-magnitude diagram of the nearby field observed to check for field stars contamination looks intriguingly similar to that of the Canis Major overdensity.2006MNRAS.368..471Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/368/471CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/368/471https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/368/471http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/368/471https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/368/471https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/368/471http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/368/471GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/368/471/table (BVI photometry (from WEBDA))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/368/471/table?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/368/471/table?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/368/471/table?GETtext/xml+votable180.050000true104.597345836.360911110.005555555555555556Cone search capability for table J/MNRAS/368/471/table4 (Radial velocities of stars in Be 32)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/368/471/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/368/471/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/368/471/table4?GETtext/xml+votable180.050000true104.52646256.379366670.0055555555555555566/22237 22239https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/368/471?format=asciiOpticalInfrareddefaultJ/MNRAS/368/471/tableBVI photometry (from WEBDA)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDBTStar sequential number, Cl* Berkeley 32 DBT NNNN in Simbadmeta.id;meta.mainintBmag? Johnson B magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? rms uncertainty on Bmagmagstat.error;phot.mag;em.opt.BfloatnullableVmag1? Johnson V magnitude calculated from B-V colour indexmagphot.mag;em.opt.VfloatnullableVmag2? Johnson V magnitude calculated from V-I colour indexmagphot.mag;em.opt.Vfloatnullablee_Vmag? rms uncertainty on Vmagmagstat.error;phot.mag;em.opt.VfloatnullableImag? Cousins I magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? rms uncertainty on Imagmagstat.error;phot.mag;em.opt.IfloatnullableXposX positionpixpos.cartesian.x;instr.detdoubleYposY positionpixpos.cartesian.y;instr.detdoubleRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainJ/MNRAS/368/471/table4Radial velocities of stars in Be 32recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDBTStar sequential number, Cl* Berkeley 32 DBT NNNN in Simbadmeta.id;meta.mainintKM? Kaluzny & Mazur (1991AcA....41..167K) number, Cl* Berkeley 32 KM NNN in Simbadmeta.idintnullableRS? Richtler & Sagar (2001BASI...29...53R) number, Cl* Berkeley 32 RS NNNN in Simbadmeta.idintnullableRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainHRVHeliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_HRVStandard deviation from the mean HRVkm/sstat.errorfloatRVSFJ? Scott et al. (1995AJ....109.1706S) radial velocitykm/sphys.veloc;pos.heliocentricintnullableBmagJohnson B magnitude (1)magphot.mag;em.opt.BfloatVmagJohnson V magnitude (1)magphot.mag;em.opt.VfloatImag? Cousins I magnitude (1)magphot.mag;em.opt.IfloatnullableMm[CF] Membership status: C for cluster member and F for field starsmeta.code.membercharMaskMask number (M1 or M2)meta.id;instrchar