J/A+A/470/1009ivo://CDS.VizieR/J/A+A/470/1009doi:10.26093/cds/vizier.34701009CDSCarrier F.Eggenberger P.Leyder J.C.Debernardi Y.Royer F.2017-06-26T11:49:19Z2007-09-02T14:36:42ZCDS support team

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

cds-question@unistra.fram-starsspectroscopic-binary-starsradial-velocityThe goal is to test the structure of hot metallic stars, and in particular the structure of a near-surface convection zone using asteroseismic measurements. Indeed, stellar models including a detailed treatment of the radiative diffusion predict the existence of a near-surface convection zone in order to correctly reproduce the anomalies in surface abundances that are observed in Am stars. The Am star HD 209625 was observed with the Harps spectrograph mounted on the 3.6-m telescope at the ESO La Silla Observatory (Chile) during 9 nights in August 2005. This observing run allowed to collect 1243 radial velocity measurements, with a standard deviation of 1.35m/s. The power spectrum associated with these RV measurements does not present any excess. Therefore, either the structure of the external layers of this star does not enable to excite solar-like oscillations, or the amplitudes of the oscillations remains below 20-30cm/s (depending of their frequency range).2007A&A...470.1009Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/470/1009CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/470/1009https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/470/1009http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/470/1009https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/470/1009https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/470/1009http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/470/1009GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/470/1009/tableRadial velocity measurements of HD 209625recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Datedtime.epochdoubleHRVHeliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricdoublee_HRVPhoton noisekm/sstat.errordouble