J/ApJ/656/437ivo://CDS.VizieR/J/ApJ/656/437doi:10.26093/cds/vizier.16560437CDSGrundstrom E.D.Caballero-Nieves S.M.Gies D.R.Huang W.McSwain M.V.,Rafter S.E.Riddle R.L.Williams S.J.Wingert D.W.2017-06-26T11:49:20Z2009-01-31T20:14:42ZCDS support team

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

cds-question@unistra.frspectroscopic-binary-starsx-ray-binary-starsradial-velocityline-intensitiesWe present the results of an Halpha monitoring campaign on the BeXRB and microquasar system LS I +61 303. We use radial velocity measurements of HeI lines in our spectra to reevaluate the orbital elements and to better establish the time of periastron. We list equivalent widths and other parameters for the Halpha emission line and discuss the orbital phase related variations observed.2007ApJ...656..437Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/656/437CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/656/431 : LS I +65 10 radial velocities and Halpha EW (Grundstrom+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/656/437https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/656/437http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/656/437https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/656/437https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/656/437http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/656/437GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/656/437/table1Radial Velocity and H{alpha} MeasurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDMid-exposure Heliocentric Julian Datedtime.epochdoublePhaseOrbital phase (Taylor & Gregory, 1982ApJ...255..210T)time.phasefloatRVRadial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatf_RV[a] Flag on RVel (1)meta.codechar(O-C)Observed minus calculated residual from the fitkm/sstat.fit.residualfloatVISMInterstellar line offsetkm/sphys.veloc;arith.difffloatEWHaH{alpha} equivalent width in Angstroms (2)0.1nmspect.line.eqWidth;em.line.HalphafloatRV(W)Radial velocity from cross-correlating Gaussians with H{alpha} profile wingskm/sspect.dopplerVelocfloatRV(V)Radial velocity of violet H{alpha} peakkm/sspect.dopplerVelocfloatRV(R)Radial velocity of red H{alpha} peakkm/sspect.dopplerVelocfloatRatioRatio of violet to red equivalent widthsspect.line.intensity;arith.ratiofloatV/RThe peak violet to red peak intensity ratiospect.line.intensity;arith.ratiofloatFWHM(V)Full-Width at Half-Maximum of violet H{alpha} peak0.1nmspect.line.widthfloatFWHM(R)Full-Width at Half-Maximum of red H{alpha} peak0.1nmspect.line.widthfloat