J/A+A/395/885ivo://CDS.VizieR/J/A+A/395/885doi:10.26093/cds/vizier.33950885CDSDuemmler R.Iliev I.Kh.Iliev L.2002-11-25T19:47:46Z2002-11-25T20:47:40ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsspectroscopic-binary-starsradial-velocityHD 553 was discovered as an eclipsing binary by Hipparcos. Here, we present the first radial velocity curve for this system. It is found, that HD 553 is a double-lined spectroscopic binary. Despite the large luminosity difference, the two components of this system are of very similar mass. The primary, a K0-giant, fills a large fraction of its Roche-lobe. The secondary is, despite its very similar mass, still a late-type dwarf. The radial velocity curve allows to constrain several stellar and system parameters.2002A&A...395..885Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/395/885CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/395/885https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/395/885http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/395/885https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/395/885https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/395/885http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/395/885GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/395/885/table1Radial velocities measurements of HD 553recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian date at mid-exposuretime.epochdoubleLamApproximate centre of the spectral regionnmem.wlintSNRSignal-to-noise ratio of the spectrumstat.snrintHRV1Heliocentric radial velocity of the primarykm/sphys.veloc;pos.heliocentricfloate_HRV1rms uncertainty on RV1km/sstat.errorfloatHRV2? Heliocentric radial velocity of the secondarykm/sphys.veloc;pos.heliocentricfloatnullablee_HRV2? rms uncertainty on RV2km/sstat.errorfloatnullable