Differential Velocities of very low mass SBsJ/AJ/132/663ivo://CDS.VizieR/J/AJ/132/663doi:10.26093/cds/vizier.51320663CDSBasri G.Reiners A.2017-09-27T05:55:29Z2008-07-20T07:58:01ZCDS support team
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
cds-question@unistra.frspectroscopic-binary-starsradial-velocityWe report on the results of a survey for radial velocity variability in a heterogeneous sample of very low mass stars and brown dwarfs. One distinguishing characteristic of the survey is its time span, which allows an overlap between spectroscopic binaries and those that can be found by high angular resolution imaging. Despite our relatively low velocity precision, we are able to place a new constraint on the total binary fraction in these objects, which suggests that they are more likely the result of extending the same processes at work at higher masses into this mass range, rather than a distinct mode of formation.2006AJ....132..663Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/132/663CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/132/663https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/132/663http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/132/663https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/132/663https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/132/663http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/132/663GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/132/663/table23 (List of observed stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/132/663/table23?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/132/663/table23?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/132/663/table23?GETtext/xml+votable180.050000true298.479537544.41528610.0055555555555555566/2110 4775 5000 5264 8402 8699 8794 9146 10103 10400 10753 10850 11719 13336 13682 14772 16502 16568 16645 16971 17303 18060 18482 18571 18574 19531 19964 20279 22289 25310 25325 25411 26005 26327 26699 28126 28476 30505 30833 31714 35471 35499 37125 40941 42981 43966 44226 44824 48158 48735https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/132/663?format=asciiOpticaldefaultJ/AJ/132/663/table23List of observed starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRVSimbad column added by the CDSmeta.codecharsigma[1,2]? 1 or 2 sigma detection (in table2 only)stat.likelihood;obsintnullableNameObject namemeta.id;meta.maincharprimaryn_Name[f] f for flare starmeta.notecharSpTypeMK spectral typesrc.spTypecharNbspNumber of spectrameta.numberintn_NbspNote on Nbsp (1)meta.notecharDRV1Differential radial velocity between the two exposures, corrected for the barycentric velocity on the two night of observationkm/sphys.veloc;arith.difffloate_DRV1? rms uncertainty on DVstarkm/sstat.errorfloatnullableDRV2? Mean absolute virtual shift from the stars in which the reference value of the shift has been derived from telluric bandskm/sphys.veloc;arith.difffloatnullablen_DRV2[c] c: From water bandsmeta.notecharDRVFinal radial velocity variationkm/sphys.veloc;arith.difffloate_DRVrms uncertainty on DRVtotkm/sstat.errorfloatDTmaxTime difference between our earliest and latest exposuredtime.epoch;arith.diffintProbProbability that a random measurement of a radial velocity shift DRVtot in a single star is smaller than the one we have measuredspect.dopplerVelocfloatSimbadNameSimbad column added by the CDSmeta.idchar_RAComputed Right Ascension for Equinox: J2000degpos.eq.ra;meta.main_DEComputed Declination for Equinox: J2000degpos.eq.dec;meta.main
J/AJ/132/663/table5Differential radial velocities for all sets of observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharObs.DateDate of the observationtime.epoch;obsnullableDRVDifferential radial velocity (1)km/sspect.dopplerVeloc;arith.difffloate_DRVUncertainty in DRV (2)km/sstat.errorfloat