J/MNRAS/429/1466ivo://CDS.VizieR/J/MNRAS/429/1466doi:10.26093/cds/vizier.74291466CDSBalona L.A.Joshi S.Joshi Y.C.Sagar R.2024-07-20T20:13:47Z2014-04-23T15:29:32ZCDS support team

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

cds-question@unistra.fropen-star-clustersvariable-starsWe present an analysis of stars in the field of the open cluster NGC 6866 (age 650Myr) using data from the Kepler Input Catalogue (KIC) and time series photometry from the Kepler data base. We identify 31 {delta} Scuti and 8 {gamma} Doradus pulsating variables as well as 23 red giants with solar-like oscillations. There are 4 eclipsing binaries and 106 stars showing rotational modulation indicative of starspots. We attempted to identify cluster members using their proper motions but found very poor discrimination between members and non-members. The KIC shows a concentration of stars with distance modulus V_0_-M_V_=10.47+/-0.02. We used assumed radial modes in 9 {delta} Sct stars to determine their asteroseismic luminosities and found that the distance modulus falls within three narrow ranges depending on the assignment of overtone number. One of these ranges coincides with the KIC distance modulus. The rotation periods of main-sequence stars are correlated with colour, so that a period-age-mass relation can be derived from open clusters and applied to stars of unknown ages. Surprisingly, we find that the correlation applies not only to cool stars, but extends to A-type stars in the cluster. Finally, we present measurements of solar-like oscillations in red giants, a few of which might be cluster members.2013MNRAS.429.1466Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/429/1466CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/AcA/59/193 : BV photometry of stars in NGC 6866 (Molenda-Zakowicz+, 2009)J/PAZh/36/354 : NGC 6866 proper motions and CCD photometry (Frolov+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/429/1466https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/429/1466http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/429/1466https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/429/1466https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/429/1466http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/429/1466GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/429/1466/variables (Variable stars in the field of NGC 6866: {delta}Sct, {gamma}Dor, eclipsing binaries and peculiar variables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/429/1466/variables?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/429/1466/variables?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/429/1466/variables?GETtext/xml+votable180.050000true300.8041744.067780.005555555555555556Cone search capability for table J/MNRAS/429/1466/table6 (Stars with rotational modulation (starspots))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/429/1466/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/429/1466/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/429/1466/table6?GETtext/xml+votable180.050000true300.8544.078060.005555555555555556Cone search capability for table J/MNRAS/429/1466/table7 (Stars with solar-line oscillations in the field of NGC 6866)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/429/1466/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/429/1466/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/429/1466/table7?GETtext/xml+votable180.050000true300.844.051110.0055555555555555566/14749 14751 14792 14794https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/429/1466?format=asciiOpticaldefaultJ/MNRAS/429/1466/variablesVariable stars in the field of NGC 6866: {delta}Sct, {gamma}Dor, eclipsing binaries and peculiar variablesKICKIC number (Cat. V/133)meta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintXExistence of star in the photometric catalog of Molenda-Zakowicz et al. 2009 (J/AcA/59/193) and/or Frolov et al. 2010 (J/PAZh/36/354), within 2''phot;meta.tableintnullableMm[M] Membership (M=Member) (G1)meta.code.membercharJJ? Joshi et al. (2012MNRAS.419.2379J) numbermeta.idintnullableMKMolenda et al. (2009, Cat. J/AcA/59/193) name <[MKS2009] VNN> in Simbadmeta.idcharDistDistance from cluster centerarcminpos.angDistancefloatRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainCad[LS] Kepler cadence (L=long, S=short)meta.codecharkepmagKepler magnitude from KICmagphot.mag;em.optfloatlogTe? Corrected effective temperature as derived from KIClog(K)phys.temperature.effectivefloatnullablelogL? Luminosity as derived from KIClog(solLum)phys.luminosityfloatnullableType[EP] Eclipsing or Peculiar variable for table5meta.code;src.varcharJ/MNRAS/429/1466/table6Stars with rotational modulation (starspots)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintXExistence of star in the photometric catalog of Molenda-Zakowicz et al. 2009 (J/AcA/59/193) and/or Frolov et al. 2010 (J/PAZh/36/354), within 2''phot;meta.tableintnullableMm[M] Membership (M=Member) (G1)meta.code.membercharJJ? Joshi et al. (2012MNRAS.419.2379J) numbermeta.idintnullableDistDistance from cluster centerarcminpos.angDistancefloatRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainCad[LS] Kepler cadence (L=long, S=short)meta.codecharkepmagKepler magnitudemagphot.mag;em.optfloatlogTe? Corrected effective temperaturelog(K)phys.temperature.effectivefloatnullablelogL? Luminosity as derived from KIClog(solLum)phys.luminosityfloatnullablef1Frequency of highest amplituded**-1em.freq;src.varfloatAmpAmplitudemagphot.magdoubleKICKIC numbermeta.id;meta.mainintJ/MNRAS/429/1466/table7Stars with solar-line oscillations in the field of NGC 6866KICKIC numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintXExistence of star in the photometric catalog of Molenda-Zakowicz et al. 2009 (J/AcA/59/193) and/or Frolov et al. 2010 (J/PAZh/36/354), within 2''phot;meta.tableintnullableMm[M] Membership (M=Member) (G1)meta.code.membercharJJ? Joshi et al. (2012MNRAS.419.2379J) numbermeta.idintnullableDistDistance from cluster centerarcminpos.angDistancefloatRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainCad[LS] Kepler cadence (L=long, S=short)meta.codecharkepmagKepler magnitudemagphot.mag;em.optfloatlogT? Corrected effective temperaturelog(K)phys.temperature.effectivefloatnullablelogL? Luminosity as derived from KIClog(solLum)phys.luminosityfloatnullablelogLs? Luminosity calculated from the solar-like oscillationslog(solLum)phys.luminosityfloatnullablef1Frequency of maximum amplitudeuHzem.freq;src.varfloatdf? Large separation between f1 and f2uHzem.freq;src.varfloatnullable