J/A+A/552/A60ivo://CDS.VizieR/J/A+A/552/A60doi:10.26093/cds/vizier.35520060CDSMaceroni C.Montalban J.Gandolfi D.Pavlovski K.Rainer M.2017-06-20T13:16:57Z2013-03-26T07:35:26ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsspectroscopic-binary-starsphotometryspectroscopyPulsating stars in eclipsing binary systems are powerful tools to test stellar models. Binarity enables us to constrain the pulsating component physical parameters and this knowledge drastically improves the input physics for asteroseismic studies. The study of stellar oscillations then allows us to improve our understanding of stellar interiors and stellar evolution. The space mission CoRoT discovered several promising objects suitable for these studies. They were photometrically observed with unprecedented accuracy, but needed spectroscopic follow-up. A promising target was the relatively bright eclipsing system CoRoT 102918586, which turned out to be a double-lined spectroscopic binary and also showed clear evidence of Gamma Dor type pulsations. With the aim of combining the information from binarity and pulsation and fully exploiting the potential of CoRoT photometry we obtained phase resolved high-resolution spectroscopy with the Sandiford spectrograph at the McDonald 2.1m telescope and the FEROS spectrograph at the ESO 2.2m telescope. Spectroscopy yielded both the radial velocity curves and, after spectra disentangling, the component effective temperatures, metallicity, and line-of-sight projected rotational velocities. The CoRoT light curve was analyzed with an iterative procedure, devised to disentangle eclipses from pulsations. The eclipsing binary light curve analysis, combined with the spectroscopic results, provided an accurate determination of the system parameters, and the comparison with evolutionary models provided strict constraints on the system age. Finally, the residuals obtained after subtraction of the best fitting eclipsing binary model were analyzed to determine the pulsator properties. We achieved a complete and consistent description of the system. The primary star pulsates with typical gamma Dor frequencies and shows a splitting in period that is consistent with high order g-mode pulsations in a star of the corresponding physical parameters. The value of the splitting, in particular, is consistent with pulsations in l=1 modes.2013A&A...552A..60Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/552/A60CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/corot : CoRoT observation log Release 12 (CoRoT, 2009-2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/552/A60https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/552/A60http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/552/A60https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/552/A60https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/552/A60http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/552/A60GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/552/A60/smcdsp07McDonald spectrum at mid-exposure time HJD=2455179.82043recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[5040/6100] Wavelength in Angstroms0.1nmem.wldoubleNFluxNormalized flux (1)phot.flux;arith.ratiodoubleJ/A+A/552/A60/smcdsp08McDonald spectrum at mid-exposure time HJD=2455584.90412NFluxNormalized flux (1)phot.flux;arith.ratiodoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[5040/6100] Wavelength in Angstroms0.1nmem.wldoubleJ/A+A/552/A60/prewhtlcPre-whitened phased lightcurverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPhase[0/1] Orbital phasetime.phasedoubleNFluxMedian normalized fluxphot.flux;stat.mediandoubleJ/A+A/552/A60/smcdsp09McDonald spectrum at mid-exposure time HJD=2455585.90004recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[5040/6100] Wavelength in Angstroms0.1nmem.wldoubleNFluxNormalized flux (1)phot.flux;arith.ratiodoubleJ/A+A/552/A60/smcdsp03McDonald spectrum at mid-exposure time HJD=2455175.79675recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[5040/6100] Wavelength in Angstroms0.1nmem.wldoubleNFluxNormalized flux (1)phot.flux;arith.ratiodoubleJ/A+A/552/A60/smcdsp06McDonald spectrum at mid-exposure time HJD=2455178.97185recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[5040/6100] Wavelength in Angstroms0.1nmem.wldoubleNFluxNormalized flux (1)phot.flux;arith.ratiodoubleJ/A+A/552/A60/dissppriDisentangled spectrum of primary componentrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[4834/5481] Wavelength in Angstroms0.1nmem.wldoubleNFluxNormalized fluxphot.flux;arith.ratiodoubleJ/A+A/552/A60/disspsecDisentangled spectrum of secondary componentNFluxNormalized fluxphot.flux;arith.ratiodoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[4834/5481] Wavelength in Angstroms0.1nmem.wldoubleJ/A+A/552/A60/smcdsp02McDonald spectrum at mid-exposure time HJD=2455174.92338recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[5040/6100] Wavelength in Angstroms0.1nmem.wldoubleNFluxNormalized flux (1)phot.flux;arith.ratiodoubleJ/A+A/552/A60/smcdsp10McDonald spectrum at mid-exposure time HJD=2455588.89373recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[5040/6100] Wavelength in Angstroms0.1nmem.wldoubleNFluxNormalized flux (1)phot.flux;arith.ratiodoubleJ/A+A/552/A60/smcdsp04McDonald spectrum at mid-exposure time HJD=2455176.85916recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[5040/6100] Wavelength in Angstroms0.1nmem.wldoubleNFluxNormalized flux (1)phot.flux;arith.ratiodoubleJ/A+A/552/A60/smcdsp01McDonald spectrum at mid-exposure time HJD=2455173.91505recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[5040/6100] Wavelength in Angstroms0.1nmem.wldoubleNFluxNormalized flux (1)phot.flux;arith.ratiodoubleJ/A+A/552/A60/smcdsp05McDonald spectrum at mid-exposure time HJD=2455177.99142recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[5040/6100] Wavelength in Angstroms0.1nmem.wldoubleNFluxNormalized flux (1)phot.flux;arith.ratiodouble