J/A+A/507/541ivo://CDS.VizieR/J/A+A/507/541doi:10.26093/cds/vizier.35070541CDSGonzalez J.F.Levato H.2018-01-26T07:38:00Z2010-04-26T14:12:29ZCDS support team

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

cds-question@unistra.fropen-star-clustersradial-velocityAs a part of our program on binaries in open clusters, we present a spectroscopic study of the bright stars of Blanco 1 aimed at detecting and characterizing spectroscopic binaries. Forty five stars previously mentioned as cluster candidates, plus another 24 stars in a wider region around the cluster were observed repeatedly during 6 years, with a spectral resolving power 13300. Radial velocities were measured by cross-correlations. We obtained a mean cluster velocity of 6.2+/-0.3km/s and determined kinematic membership. Eleven spectroscopic binaries were detected, and orbital solutions are presented for eight of them. Six binaries are confirmed to be members of the cluster. All of them are single-lined spectroscopic systems with periods in the range 1.9-1380 days. Considering all suspected binaries, the cluster binary frequency amounts to about 50%.2009A&A...507..541Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/507/541CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/121/213 : BV photometry of Blanco 1 stars (Panagi+, 1997)J/A+A/399/919 : X-ray Luminosities in Blanco 1 (Pillitteri+, 2003)J/A+A/421/175 : XMM sources in Blanco 1 (Pillitteri+, 2004)J/MNRAS/364/272 : Elemental abundances in Blanco 1 (Ford+, 2005)J/A+A/471/499 : Low-mass stars and brown dwarfs in Blanco 1 (Moraux+, 2007)J/A+A/485/95 : Velocities of F-G-K stars in Blanco 1 (Mermilliod+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/507/541https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/507/541http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/507/541https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/507/541https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/507/541http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/507/541GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/507/541/stars (List of studied stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/507/541/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/507/541/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/507/541/stars?GETtext/xml+votable180.050000true359.411667-29.8352780.0055555555555555565/4111 4122 6/16443 16482-16483 16486 16495 16530-16531 16533 16535 16543 16576-16577 16579 16582 16585 16587https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/507/541?format=asciiOpticaldefaultJ/A+A/507/541/starsList of studied starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar identification (G1)meta.id;meta.maincharprimaryVCVelocity curvemeta.ref.urlcharRAJ2000Simbad or WEBDA Right Ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Simbad or WEBDA Declination (J2000.0)pos.eq.dec;meta.mainBmag? Simbad or WEBDA B band magnitudemagphot.mag;em.opt.BfloatnullableVmag? Simbad or WEBDA V band magnitudemagphot.mag;em.opt.VfloatnullableSpTypeSimbad or WEBDA MK spectral typesrc.spTypecharSNameSimbad Namemeta.idcharNmNumber of RV measurements in table1.datmeta.numberintJ/A+A/507/541/table1Radial VelocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar identification (G1)meta.id;meta.maincharHJDHeliocentric Julian datedtime.epochdoubleRVRadial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_RVRadial velocity errorkm/sstat.errorfloat