J/MNRAS/356/545ivo://CDS.VizieR/J/MNRAS/356/545doi:10.26093/cds/vizier.73560545CDSFremat Y.Lampens P.Hensberge H.2024-06-30T20:17:00Z2006-12-20T14:39:59ZCDS support team

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

cds-question@unistra.frspectroscopic-binary-starsradial-velocityDG Leo is a spectroscopic triple system composed of three stars of late-A spectral type, one of which was suggested to be a delta Scuti star. Seven nights of observations at high spectral and high time-resolution at the Observatoire de Haute-Provence with the ELODIE spectrograph were used to obtain the component spectra by applying a Fourier transform spectral disentangling technique. Comparing these with synthetic spectra, the stellar fundamental parameters (effective temperature, surface gravity, projected rotation velocity and chemical composition) are derived. The inner binary consists of two Am components, at least one of which is not yet rotating synchronously at the orbital period though the orbit is a circular one. The distant third component is confirmed to be a delta Scuti star with normal chemical composition.2005MNRAS.356..545Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/356/545CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/438/201 : DG Leo uvby differential photometry (Lampens+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/356/545https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/356/545http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/356/545https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/356/545https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/356/545http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/356/545GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/MNRAS/356/545/table1Radial velocities measured on the cross-correlation functionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian date of observationdtime.epochdoubleRVB? Radial velocity of component Bkm/sphys.veloc;pos.heliocentricfloatnullablee_RVB? rms uncertainty on RVBkm/sstat.errorfloatnullableRVAb? Radial velocity of component Abkm/sphys.veloc;pos.heliocentricfloatnullablee_RVAb? rms uncertainty on RVAbkm/sstat.errorfloatnullableRVAa? Radial velocity of component Aakm/sphys.veloc;pos.heliocentricfloatnullablee_RVAa? rms uncertainty on RVAakm/sstat.errorfloatnullableJ/MNRAS/356/545/table3Radial velocities derived with KORELrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian date of observationdtime.epochdoubleRVB? Radial velocity of component Bkm/sphys.veloc;pos.heliocentricfloatnullableRVB(O-C)? Deviation relatively to the orbital solutionkm/sstat.fit.residualfloatnullableRVAb? Radial velocity of component Abkm/sphys.veloc;pos.heliocentricfloatnullableRVAb(O-C)? Deviation relatively to the orbital solutionkm/sstat.fit.residualfloatnullableRVAa? Radial velocity of component Aakm/sphys.veloc;pos.heliocentricfloatnullableRVAa(O-C)? Deviation relatively to the orbital solutionkm/sstat.fit.residualfloatnullableJ/MNRAS/356/545/table4aMicrometric (theta, rho) measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEpochEpoch of observationyrtime.epochdoublethetaPosition angledegpos.posAngfloattheta(O-C)Deviation relatively to the orbital solutiondegstat.fit.residualfloatrhoSeparation anglearcsecpos.angDistance;src.orbitalfloatrho(O-C)Deviation relatively to the orbital solutionarcsecstat.fit.residualfloatJ/MNRAS/356/545/table4bSpeckle (x, y) measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEpochEpoch of observationyrtime.epochdoublexposX positionarcsecpos.cartesian.x;instr.detfloatxpos(O-C)Deviation relatively to the orbital solutionarcsecstat.fit.residualfloatyposY positionarcsecpos.cartesian.y;instr.detfloatypos(O-C)Deviation relatively to the orbital solutionarcsecstat.fit.residualfloat