J/ApJ/831/11ivo://CDS.VizieR/J/ApJ/831/11doi:10.26093/cds/vizier.18310011CDSSandquist E.L.Jessen-Hansen J.Shetrone M.D.Brogaard K.Meibom S.,Leitner M.Stello D.Bruntt H.Antoci V.Orosz J.A.Grundahl F.,Frandsen S.2017-07-03T14:26:57Z2017-02-24T14:51:23ZCDS support team

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

cds-question@unistra.frradial-velocityeclipsing-binary-starsinfrared-photometryvisible-astronomyWide-band photometryvariable-starsastronomical-object-identificationopen-star-clustersWe present the analysis of an eccentric, partially eclipsing long-period (P=19.23 days) binary system KIC 9777062 that contains main-sequence stars near the turnoff of the intermediate-age open cluster NGC 6811. The primary is a metal-lined Am star with a possible convective blueshift to its radial velocities, and one star (probably the secondary) is likely to be a {gamma} Dor pulsator. The component masses are 1.603+/-0.006(stat.)+/-0.016(sys.) and 1.419+/-0.003+/-0.008M_{sun}_, and the radii are 1.744+/-0.004+/-0.002 and 1.544+/-0.002+/-0.002R_{sun}_. The isochrone ages of the stars are mildly inconsistent: the age from the mass-radius combination for the primary (1.05+/-0.05+/-0.09Gyr, where the last quote was systematic uncertainty from models and metallicity) is smaller than that from the secondary (1.21+/-0.05+/-0.15Gyr) and is consistent with the inference from the color-magnitude diagram (1.00+/-0.05Gyr). We have improved the measurements of the asteroseismic parameters {Delta}{nu} and {nu}_max_ for helium-burning stars in the cluster. The masses of the stars appear to be larger (or alternately, the radii appear to be smaller) than predicted from isochrones using the ages derived from the eclipsing stars. The majority of stars near the cluster turnoff are pulsating stars: we identify a sample of 28 {delta} Sct, 15 {gamma} Dor, and 5 hybrid types. We used the period-luminosity relation for high-amplitude {delta} Sct stars to fit the ensemble of the strongest frequencies for the cluster members, finding (m-M)_V_=10.37+/-0.03. This is larger than most previous determinations, but smaller than values derived from the eclipsing binary (10.47+/-0.05).2016ApJ...831...11Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/831/11CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/322 : UCAC4 Catalogue (Zacharias+, 2012)V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)I/259 : The Tycho-2 Catalogue (Hog+ 2000)J/A+A/594/A39 : LAMOST-Kepler param. and activity indicators (Frasca+, 2016)J/other/ApSS/355.267 : NGC 6811 CCD UBVRI photometry (Yontan+, 2015)J/MNRAS/450/2764 : Spectroscopic survey of Kepler stars. I. (Niemczura+, 2015)J/MNRAS/437/3473 : Temperatures of Kepler eclipsing binaries (Armstrong+, 2014)J/A+A/564/A79 : Proper motions of open clusters from UCAC4 (Dias+, 2014)J/ApJS/211/2 : Revised properties of Q1-16 Kepler targets (Huber+, 2014)J/AJ/145/7 : UBVRI CCD photom. of the open cluster NGC 6811 (Janes+, 2013)J/A+A/548/A97 : Catalogue of variable stars in open clusters (Zejda+, 2012)J/AJ/142/160 : Kepler Mission. II. Eclipsing binaries in DR2 (Slawson+, 2011)J/A+A/535/A3 : SuperWASP observations of pulsating Am stars (Smalley+, 2011)J/other/RMxAA/47.309 : NGC 6811 & NGC 6830 uvby-{beta} photometry (Pena+, 2011)J/A+A/534/A125 : Variability of A- and F-stars from Kepler (Uytterhoeven+ 2011)J/ApJ/733/L9 : Stellar rotation for 71 NGC 6811 members (Meibom+, 2011)J/A+A/529/A89 : Kepler satellite variability study (Debosscher+, 2011)J/AJ/136/118 : Open clusters as galactic disk tracers. I. (Frinchaboy+, 2008)J/MNRAS/380/1064 : New spectroscopic orbits of Am stars (Carquillat+, 2007)J/A+A/388/168 : Absolute proper motions of 93 open clusters (Dias+, 2002)J/PAZh/25/115 : A study of the open cluster NGC 6811 (Glushkova+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/831/11https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/831/11http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/831/11https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/831/11https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/831/11http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/831/11GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/831/11/field (Pulsating main sequence stars and miscellaneous bright stars in the NGC 6811 field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/831/11/field?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/831/11/field?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/831/11/field?GETtext/xml+votable180.050000true294.263458346.32380560.0055555555555555566/14779 15121https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/831/11?format=asciiInfraredOpticaldefaultJ/ApJ/831/11/table3Radial velocity measurements of KIC 9777062InstInstrument (1)meta.id;instrintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDModified Barycentric Julian Date, BJD-2450000dtime.epochdoubleRVela[-42/74] Radial Velocity, akm/sphys.veloc;pos.heliocentricfloate_RVela[0.1/1.2] Uncertainty in RVelakm/sstat.errorfloatRVelb[-68/65] Radial Velocity, bkm/sphys.veloc;pos.heliocentricfloate_RVelb[0.1/2.1] Uncertainty in RVelbkm/sstat.errorfloatJ/ApJ/831/11/fieldPulsating main sequence stars and miscellaneous bright stars in the NGC 6811 fieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintS71? Sanders (1971A&A....15..368S) identifiermeta.id.crossintnullable[JBM2013]? Janes+ (2013, J/AJ/145/7) identifiermeta.id.crossintnullableTycho? Tycho identifier, TYC 3556-XXXXX-1meta.id.crossintnullableTypeSimbad column added by the CDSmeta.code.classcharKICKepler Input Catalog identifiermeta.id;meta.mainintRAJ2000[19] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[45/46] Degree of Declination (J2000)pos.eq.dec;meta.mainVmag[10.8/15.5] V band magnitude; Mount Laguna Observatory 1mmagphot.mag;em.opt.Vfloate_Vmag[0.001/0.08]? Uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatnullableB-V[0.1/1] B-V color index; Mount Laguna Observatory 1mmagphot.color;em.opt.B;em.opt.Vfloate_B-V[0.001/0.08]? Uncertainty in B-Vmagstat.error;phot.color;em.opt.BfloatnullableV-Ic[0.2/1.1]? V-Ic color index; Mount Laguna Observatory 1mmagphot.color;em.opt.V;em.opt.Ifloatnullablee_V-Ic[0.001/0.3]? Uncertainty in V-Icmagstat.error;phot.color;em.opt.VfloatnullablemS71? Sanders (1971A&A....15..368S) membership probabilitystat.probabilityintnullablemU4UCAC4 membership probability (Zacharias+ 2013, I/322 and Dias+, J/A+A/564/A79)stat.probabilityintmK13? Kharchenko membership probability (2013, J/A+A/558/A53)stat.probabilityintnullableFrvRadial velocity flag (1)meta.code.membercharFposPosition membership flag (2)meta.code.membercharNotesVariability notes (3)meta.noteD14Display data from Dias+, 2014, J/A+A/564/A79, within 2"meta.ref.urlintnullableSCatDisplay data from Glushkova+, 1999, J/PAZh/25/115, if anymeta.ref.urlintnullableUCAC4Display data from UCAC4 (Zacharias+, 2012, I/322), within 1"meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/831/11/table4Kepler eclipse timing observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDEclipse Timing, Modified Barycentric Julian Date; BJD-2450000 (1)dtime.epochdoublesigma[/0.0012] Residualdstat.fit.residualdoubleType[P,S] Eclipse Type ("P"rimary or "S"econdary)meta.codecharNotesNotes (2)meta.notechar