J/MNRAS/491/4345ivo://CDS.VizieR/J/MNRAS/491/4345doi:10.26093/cds/vizier.74914345CDSRodriguez E.Balona L.A.Lopez-Gonzalez M.J.Ocando S.Martin-Ruiz S.,Rodriguez-Lopez C.2024-08-20T20:14:54Z2023-04-28T12:32:34ZCDS support team

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

cds-question@unistra.frvariable-starsproper-motionsvisible-astronomytrigonometric-parallaxWe have analysed a selected sample of 36 Kepler short-cadence stars in the field of NGC 6811. The results reveal that all the targets are variable: two red giant stars with solar-like oscillations, 21 main-sequence pulsators (16 {delta} Scuti and five {gamma} Doradus stars), and 13 rotating variables. Three new {gamma} Doradus ({gamma} Dor) variables (one is a hot {gamma} Dor star) are detected in this work together with five new rotating variables. An in-depth frequency analysis of the {delta} Scuti ({delta} Sct) and {gamma} Dor stars in the sample shows that the frequency spectra are very rich, in particular for the {delta} Sct-type variables. They present very dense frequency distributions and wide diversity in frequency patterns, even for stars being members of the cluster and with very similar location in the Hertzsprung-Russell (H-R) diagram. Rotational modulation is found for a high percentage of these main-sequence pulsating stars, which is an indication of stellar activity being common on the surfaces of these hot stars. In some cases, activity dominates the luminosity variations. Significant amplitude variability is also detected in at least some of the pulsation modes of highest amplitude in almost all the {delta} Sct stars. One of the {delta} Sct pulsators is a member of a binary system with the pulsating component tidally distorted. This system also shows strong stellar activity, including several flares that probably originate in the {delta} Sct component.2020MNRAS.491.4345Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/491/4345CatalogResearchIsServedByTAP VizieR generic servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/491/4345https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/491/4345http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/491/4345https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/491/4345https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/491/4345http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/491/4345GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/MNRAS/491/4345/table1Kepler stars observed in SC mode within a distance d<7.0arcmin from the centre of NGC 6811r_VarTypeReference for VarType (3)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/36] Internal object identifiermeta.idintKICKIC object identifiermeta.id;meta.mainintWEBWEBDA identification numbermeta.idintKpmagKepler magnitudemagphot.mag;em.optfloatDistDistance from the cluster centrearcminpos.angDistancefloatf_Dist[B] Flag on Dist (1)meta.codecharNmNumber of months with Kepler SC observationsmeta.numberintVarTypeVariability type (2)meta.notecharlogTeffLogarithm of the effective temperaturelog(K)phys.temperature.effectivefloatlogLLogarithm of star luminositylog(solLum)phys.luminosity;em.optfloatMem[NM ] Cluster membership (M:member, N:non-member)meta.code.membercharTypeTWVariability type derived in this workmeta.note;src.varcharf_TypeTW[a] Flag on TypeTW (4)meta.codecharAmpvarAmplitude variability detected in this work for the main pulsation modesmeta.codecharJ/MNRAS/491/4345/tablea1Data for the starsplx? Parallax (1)maspos.parallax.trigfloatnullablee_plx? Error on plx (1)masstat.error;pos.parallaxfloatnullableVmagV-magnitude from Simbadmagphot.mag;em.opt.VfloatlogLLogarithm of star luminosity (2)log(solLum)phys.luminosity;em.optfloate_logLError on logLlog(solLum)stat.errorfloatMem[MN ] Cluster membership (M:member, N:non-member)meta.code.membercharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/36] Internal object identifiermeta.idintKICKIC object identifiermeta.id;meta.mainintpmRA? Proper motion in right ascension (1)mas/yrpos.pm;pos.eq.rafloatnullablee_pmRA? Error on pmRA (1)mas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Proper motion in declination (1)mas/yrpos.pm;pos.eq.decfloatnullablee_pmDE? Error on pmDE (1)mas/yrstat.error;pos.pm;pos.eq.decfloatnullableJ/MNRAS/491/4345/tableb1Fourier fit for the 20 main significant peaks, when possible, for the {delta} Sct- and {gamma} Dor-type stars of Group IrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[3/35] Internal object identifiermeta.id;meta.mainintQuarterMonthly quarter from the short-cadence time seriemeta.idcharF1Frequence of the 1st main significant peakd**-1em.freqfloatAmp1Amplitude corresponding to F1mmagsrc.var.amplitudefloatS/N1Signal to noise corresponding to F1stat.snrfloatF2Frequence of the 2nd main significant peakd**-1em.freqfloatAmp2Amplitude corresponding to F2mmagsrc.var.amplitudefloatS/N2Signal to noise corresponding to F2stat.snrfloatF3Frequence of the 3rd main significant peakd**-1em.freqfloatAmp3Amplitude corresponding to F3mmagsrc.var.amplitudefloatS/N3Signal to noise corresponding to F3stat.snrfloatF4Frequence of the 4th main significant peakd**-1em.freqfloatAmp4Amplitude corresponding to F4mmagsrc.var.amplitudefloatS/N4Signal to noise corresponding to F4stat.snrfloatF5? Frequence of the 5th main significant peakd**-1em.freqfloatnullableAmp5? Amplitude corresponding to F5mmagsrc.var.amplitudefloatnullableS/N5? Signal to noise corresponding to F5stat.snrfloatnullableF6? Frequence of the 6th main significant peakd**-1em.freqfloatnullableAmp6? Amplitude corresponding to F6mmagsrc.var.amplitudefloatnullableS/N6? Signal to noise corresponding to F6stat.snrfloatnullableF7? Frequence of the 7th main significant peakd**-1em.freqfloatnullableAmp7? Amplitude corresponding to F7mmagsrc.var.amplitudefloatnullableS/N7? Signal to noise corresponding to F7stat.snrfloatnullableF8? Frequence of the 8th main significant peakd**-1em.freqfloatnullableAmp8? Amplitude corresponding to F8mmagsrc.var.amplitudefloatnullableS/N8? Signal to noise corresponding to F8stat.snrfloatnullableF9? Frequence of the 9th main significant peakd**-1em.freqfloatnullableAmp9? Amplitude corresponding to F9mmagsrc.var.amplitudefloatnullableS/N9? Signal to noise corresponding to F9stat.snrfloatnullableF10? Frequence of the 10th main significant peakd**-1em.freqfloatnullableAmp10? Amplitude corresponding to F10mmagsrc.var.amplitudefloatnullableS/N10? Signal to noise corresponding to F10stat.snrfloatnullableF11? Frequence of the 11th main significant peakd**-1em.freqfloatnullableAmp11? Amplitude corresponding to F11mmagsrc.var.amplitudefloatnullableS/N11? Signal to noise corresponding to F11stat.snrfloatnullableF12? Frequence of the 12th main significant peakd**-1em.freqfloatnullableAmp12? Amplitude corresponding to F12mmagsrc.var.amplitudefloatnullableS/N12? Signal to noise corresponding to F12stat.snrfloatnullableF13? Frequence of the 13th main significant peakd**-1em.freqfloatnullableAmp13? Amplitude corresponding to F13mmagsrc.var.amplitudefloatnullableS/N13? Signal to noise corresponding to F13stat.snrfloatnullableF14? Frequence of the 14th main significant peakd**-1em.freqfloatnullableAmp14? Amplitude corresponding to F14mmagsrc.var.amplitudefloatnullableS/N14? Signal to noise corresponding to F14stat.snrfloatnullableF15? Frequence of the 15th main significant peakd**-1em.freqfloatnullableAmp15? Amplitude corresponding to F15mmagsrc.var.amplitudefloatnullableS/N15? Signal to noise corresponding to F15stat.snrfloatnullableF16? Frequence of the 16th main significant peakd**-1em.freqfloatnullableAmp16? Amplitude corresponding to F16mmagsrc.var.amplitudefloatnullableS/N16? Signal to noise corresponding to F16stat.snrfloatnullableF17? Frequence of the 17th main significant peakd**-1em.freqfloatnullableAmp17? Amplitude corresponding to F17mmagsrc.var.amplitudefloatnullableS/N17? Signal to noise corresponding to F17stat.snrfloatnullableS/N18? Signal to noise corresponding to F18stat.snrfloatnullableF19? Frequence of the 19th main significant peakd**-1em.freqfloatnullableAmp19? Amplitude corresponding to F19mmagsrc.var.amplitudefloatnullableS/N19? Signal to noise corresponding to F19stat.snrfloatnullableF20? Frequence of the 20th main significant peakd**-1em.freqfloatnullableAmp20? Amplitude corresponding to F20mmagsrc.var.amplitudefloatnullableS/N20? Signal to noise corresponding to F20stat.snrfloatnullableResidualResiduals (in mmag) {sigma}_n_ after removing the n first peaksstat.fit.residualcharF18? Frequence of the 18th main significant peakd**-1em.freqfloatnullableAmp18? Amplitude corresponding to F18mmagsrc.var.amplitudefloatnullableJ/MNRAS/491/4345/tableb2Fourier fit for the 20 main significant peaks for the {delta} Sct stars of Group IIrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[11/33] Internal object identifiermeta.id;meta.mainintQuarterMonthly quarter from the short-cadence time seriemeta.idcharF1Frequence of the 1st main significant peakd**-1em.freqfloatAmp1Amplitude corresponding to F1mmagsrc.var.amplitudefloatS/N1Signal to noise corresponding to F1stat.snrfloatF2Frequence of the 2nd main significant peakd**-1em.freqfloatAmp2Amplitude corresponding to F2mmagsrc.var.amplitudefloatS/N2Signal to noise corresponding to F2stat.snrfloatF3Frequence of the 3rd main significant peakd**-1em.freqfloatAmp3Amplitude corresponding to F3mmagsrc.var.amplitudefloatS/N3Signal to noise corresponding to F3stat.snrfloatF4Frequence of the 4th main significant peakd**-1em.freqfloatAmp4Amplitude corresponding to F4mmagsrc.var.amplitudefloatS/N4Signal to noise corresponding to F4stat.snrfloatF5Frequence of the 5th main significant peakd**-1em.freqfloatAmp5Amplitude corresponding to F5mmagsrc.var.amplitudefloatS/N5Signal to noise corresponding to F5stat.snrfloatF6Frequence of the 6th main significant peakd**-1em.freqfloatAmp6Amplitude corresponding to F6mmagsrc.var.amplitudefloatS/N6Signal to noise corresponding to F6stat.snrfloatF7Frequence of the 7th main significant peakd**-1em.freqfloatAmp7Amplitude corresponding to F7mmagsrc.var.amplitudefloatS/N7Signal to noise corresponding to F7stat.snrfloatF8Frequence of the 8th main significant peakd**-1em.freqfloatAmp8Amplitude corresponding to F8mmagsrc.var.amplitudefloatS/N8Signal to noise corresponding to F8stat.snrfloatF9Frequence of the 9th main significant peakd**-1em.freqfloatAmp9Amplitude corresponding to F9mmagsrc.var.amplitudefloatS/N9Signal to noise corresponding to F9stat.snrfloatF10Frequence of the 10th main significant peakd**-1em.freqfloatS/N11Signal to noise corresponding to F11stat.snrfloatF12Frequence of the 12th main significant peakd**-1em.freqfloatAmp12Amplitude corresponding to F12mmagsrc.var.amplitudefloatS/N12Signal to noise corresponding to F12stat.snrfloatF13Frequence of the 13th main significant peakd**-1em.freqfloatAmp13Amplitude corresponding to F13mmagsrc.var.amplitudefloatS/N13Signal to noise corresponding to F13stat.snrfloatF14Frequence of the 14th main significant peakd**-1em.freqfloatAmp14Amplitude corresponding to F14mmagsrc.var.amplitudefloatS/N14Signal to noise corresponding to F14stat.snrfloatF15Frequence of the 15th main significant peakd**-1em.freqfloatAmp15Amplitude corresponding to F15mmagsrc.var.amplitudefloatS/N15Signal to noise corresponding to F15stat.snrfloatF16Frequence of the 16th main significant peakd**-1em.freqfloatAmp16Amplitude corresponding to F16mmagsrc.var.amplitudefloatS/N16Signal to noise corresponding to F16stat.snrfloatF17Frequence of the 17th main significant peakd**-1em.freqfloatAmp17Amplitude corresponding to F17mmagsrc.var.amplitudefloatS/N17Signal to noise corresponding to F17stat.snrfloatF18Frequence of the 18th main significant peakd**-1em.freqfloatAmp18Amplitude corresponding to F18mmagsrc.var.amplitudefloatS/N18Signal to noise corresponding to F18stat.snrfloatF19Frequence of the 19th main significant peakd**-1em.freqfloatAmp19Amplitude corresponding to F19mmagsrc.var.amplitudefloatS/N19Signal to noise corresponding to F19stat.snrfloatF20Frequence of the 20th main significant peakd**-1em.freqfloatAmp20Amplitude corresponding to F20mmagsrc.var.amplitudefloatS/N20Signal to noise corresponding to F20stat.snrfloatResidualResiduals (in mmag) {sigma}_n_ after removing the n first peaksstat.fit.residualcharAmp10Amplitude corresponding to F10mmagsrc.var.amplitudefloatS/N10Signal to noise corresponding to F10stat.snrfloatF11Frequence of the 11th main significant peakd**-1em.freqfloatAmp11Amplitude corresponding to F11mmagsrc.var.amplitudefloatJ/MNRAS/491/4345/tableb3Fourier fit for the 20 main significant peaks for the {delta} Sct stars of Group IIIAmp18Amplitude corresponding to F18mmagsrc.var.amplitudefloatS/N18Signal to noise corresponding to F18stat.snrfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[2/36] Internal object identifiermeta.id;meta.mainintQuarterMonthly quarter from the short-cadence time seriemeta.idcharF1Frequence of the 1st main significant peakd**-1em.freqfloatAmp1Amplitude corresponding to F1mmagsrc.var.amplitudefloatS/N1Signal to noise corresponding to F1stat.snrfloatF2Frequence of the 2nd main significant peak (1)d**-1em.freqfloatAmp2Amplitude corresponding to F2mmagsrc.var.amplitudefloatS/N2Signal to noise corresponding to F2stat.snrfloatF3Frequence of the 3rd main significant peakd**-1em.freqfloatAmp3Amplitude corresponding to F3mmagsrc.var.amplitudefloatS/N3Signal to noise corresponding to F3stat.snrfloatF4Frequence of the 4th main significant peakd**-1em.freqfloatAmp4Amplitude corresponding to F4mmagsrc.var.amplitudefloatS/N4Signal to noise corresponding to F4stat.snrfloatF5Frequence of the 5th main significant peak (2)d**-1em.freqfloatAmp5Amplitude corresponding to F5mmagsrc.var.amplitudefloatS/N5Signal to noise corresponding to F5stat.snrfloatF6Frequence of the 6th main significant peak (3)d**-1em.freqfloatF10Frequence of the 10th main significant peak (6)d**-1em.freqfloatAmp10Amplitude corresponding to F10mmagsrc.var.amplitudefloatS/N10Signal to noise corresponding to F10stat.snrfloatF11Frequence of the 11th main significant peak (7)d**-1em.freqfloatAmp11Amplitude corresponding to F11mmagsrc.var.amplitudefloatS/N11Signal to noise corresponding to F11stat.snrfloatF12Frequence of the 12th main significant peak (8)d**-1em.freqfloatAmp12Amplitude corresponding to F12mmagsrc.var.amplitudefloatS/N12Signal to noise corresponding to F12stat.snrfloatF13Frequence of the 13th main significant peakd**-1em.freqfloatAmp13Amplitude corresponding to F13mmagsrc.var.amplitudefloatS/N13Signal to noise corresponding to F13stat.snrfloatF14Frequence of the 14th main significant peakd**-1em.freqfloatAmp14Amplitude corresponding to F14mmagsrc.var.amplitudefloatS/N14Signal to noise corresponding to F14stat.snrfloatF15Frequence of the 15th main significant peakd**-1em.freqfloatAmp15Amplitude corresponding to F15mmagsrc.var.amplitudefloatS/N15Signal to noise corresponding to F15stat.snrfloatF16Frequence of the 16th main significant peakd**-1em.freqfloatAmp16Amplitude corresponding to F16mmagsrc.var.amplitudefloatS/N16Signal to noise corresponding to F16stat.snrfloatF17Frequence of the 17th main significant peak (9)d**-1em.freqfloatAmp17Amplitude corresponding to F17mmagsrc.var.amplitudefloatS/N17Signal to noise corresponding to F17stat.snrfloatF19Frequence of the 19th main significant peak (10)d**-1em.freqfloatAmp19Amplitude corresponding to F19mmagsrc.var.amplitudefloatS/N19Signal to noise corresponding to F19stat.snrfloatF20Frequence of the 20th main significant peakd**-1em.freqfloatAmp20Amplitude corresponding to F20mmagsrc.var.amplitudefloatS/N20Signal to noise corresponding to F20stat.snrfloatResidualResiduals (in mmag) {sigma}_n_ after removing the n first peaksstat.fit.residualcharF18Frequence of the 18th main significant peakd**-1em.freqfloatAmp6Amplitude corresponding to F6mmagsrc.var.amplitudefloatS/N6Signal to noise corresponding to F6stat.snrfloatF7Frequence of the 7th main significant peakd**-1em.freqfloatAmp7Amplitude corresponding to F7mmagsrc.var.amplitudefloatS/N7Signal to noise corresponding to F7stat.snrfloatF8Frequence of the 8th main significant peak (4)d**-1em.freqfloatAmp8Amplitude corresponding to F8mmagsrc.var.amplitudefloatS/N8Signal to noise corresponding to F8stat.snrfloatF9Frequence of the 9th main significant peak (5)d**-1em.freqfloatAmp9Amplitude corresponding to F9mmagsrc.var.amplitudefloatS/N9Signal to noise corresponding to F9stat.snrfloat