J/AJ/131/1702ivo://CDS.VizieR/J/AJ/131/1702doi:10.26093/cds/vizier.51311702CDSTorres G.2017-07-11T13:09:21Z2007-09-30T22:04:38ZCDS support team

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

cds-question@unistra.frmultiple-starsspectroscopic-binary-starsradial-velocityWe report spectroscopic observations of HD 27638B, the secondary in a visual binary in which the physically associated primary (separation ~19") is a B9 V star. The secondary shows strong Li{lambda}6708 absorption, suggesting youth, and has attracted attention in the past as a candidate post-T Tauri star, although this has subsequently been ruled out. It was previously known to be a double-lined spectroscopic binary (F8+G6) with a period of 17.6days and to show velocity residuals indicating a more distant massive third companion with a period of at least 8yr.2006AJ....131.1702Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/131/1702CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/382/118 : Spectroscopic sub-systems in multiple stars (Tokovinin+, 2002)J/A+A/374/227 : Radial velocity in multiple systems (Tokovinin+, 2001)J/A+A/379/162 : Binaries with post-T Tauri secondaries (Gerbaldi+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/131/1702https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/131/1702http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/131/1702https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/131/1702https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/131/1702http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/131/1702GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/131/1702/table13Combined table from original tablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Datedtime.epochdoubleObs.YYear of observationyrtime.epoch;obsdoubleTabSimbad column added by the CDSmeta.codecharRVBa? Radial velocity of the Ba componentkm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_RVBa? The 1{sigma} error in RVBakm/sstat.errorfloatnullable(O-C)Ba? Velocity residual of the Ba componentkm/sstat.fit.residual;phys.velocfloatnullableRVBb? Radial velocity of the Bb componentkm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_RVBb? The 1{sigma} error in RVBbkm/sstat.errorfloatnullable(O-C)Bb? Velocity residual of the Bb componentkm/sstat.fit.residual;phys.velocfloatnullableIPhaseInner orbit phasetime.phasefloatOPhaseOuter orbit phasetime.phasefloatDelTLight travel time correctiondtime.epochfloat