J/A+A/502/951ivo://CDS.VizieR/J/A+A/502/951doi:10.26093/cds/vizier.35020951CDSNardetto N.Gieren W.Kervella P.Fouque P.Storm J.Pietrzynski G.,Mourard D.Queloz D.2017-10-02T19:28:43Z2009-10-17T13:02:35ZCDS support team

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

cds-question@unistra.frvariable-starsspectroscopyradial-velocityWe observed eight galactic Cepheids with the HARPS spectrograph. For each star, we derive an interpolated cross-correlated radial velocity curve using the HARPS pipeline. Pulsating phases and HARPS radial velocity measurements can be found in Table 1. The cross correlation method is widely used to derive the radial velocity curve of Cepheids when the signal to noise ratio of the spectra is low. However, if it is used with an inac curate projection factor, it might introduce some biases in the Baade-Wesselink (BW) methods of determining the distance of Cepheids. In addition, it might affect the average value of the radial velocity curve (or gamma-velocity) important for Galactic structure studies. See the paper for details and results.2009A&A...502..951Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/502/951CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/453/309 : HARPS observations of nine galactic Cepheids (Nardetto+ 2006)J/A+A/489/1255 : HARPS observations of eight galactic Cepheids (Nardetto+ 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/502/951https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/502/951http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/502/951https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/502/951https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/502/951http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/502/951GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/502/951/table1 (The Cepheids studied listed with increasing period)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/502/951/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/502/951/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/502/951/table1?GETtext/xml+votable180.050000true229.9404764-66.49603470.0055555555555555566/23922 29104 33804 37303 39244 39410 41385 43060https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/502/951?format=asciiOpticaldefaultJ/A+A/502/951/table1The Cepheids studied listed with increasing periodPerPerioddtime.perioddoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharprimaryD4896Depth of the FeI 4896.439{AA} spectral line%phot.flux.density;arith.ratiointDRVcAmplitude of the radial velocity curve of FeI 4896.439{AA}km/sspect.dopplerVelocfloate_DRVcrms uncertainty on DRVckm/sstat.errorfloatplotPlot of velocities for this starmeta.ref.urlcharPapIIIDisplay gamma velocities of paper III, J/A+A/489/1255meta.ref.urlcharSimbadSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/502/951/table45HARPS cross-correlated radial velocities of eight CepheidsNameStar namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPhasePulsating phase (1)time.phasefloatRVccCross-correlated radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_RVccrms uncertainty on RVcckm/sstat.errorfloat