J/A+A/605/A111ivo://CDS.VizieR/J/A+A/605/A111doi:10.26093/cds/vizier.36050111CDSCeillier T.Tayar J.Mathur S.Salabert D.Garcia R.A.Stello D.,Pinsonneault M.H.van Saders J.Beck P.G.Bloemen S.2022-05-25T09:07:20Z2017-09-19T07:30:15ZCDS support team

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

cds-question@unistra.frvariable-starsgiant-starseffective-temperaturestellar-massesKepler allows the measurement of starspot variability in a large sample of field red giants for the first time. With a new method that combines autocorrelation and wavelet decomposition, we measure 361 rotation periods from the full set of 17,377 oscillating red giants in our sample. This represents 2.08% of the stars, consistent with the fraction of spectroscopically detected rapidly rotating giants in the field. The remaining stars do not show enough variability to allow us to measure a reliable surface rotation period. Because the stars with detected rotation periods have measured oscillations, we can infer their global properties, e.g. mass and radius, and quantitatively evaluate the predictions of standard stellar evolution models as a function of mass. Consistent with results for cluster giants, when we consider only the 4881 intermediate-mass stars, M>2.0M_{sun}_from our full red giant sample, we do not find the enhanced rates of rapid rotation one would expect from angular momentum conservation. We therefore suggest that either enhanced angular momentum loss or radial differential rotation must be occurring in these stars. Finally, when we examine the 575 low-mass (M<1.1M_{sun}_) red clump stars in our sample, which we would have expected to exhibit slow (non-detectable) rotation, 15% of them actually have detectable rotation. This suggests a high rate of interactions and stellar mergers on the red giant branch.2017A&A...605A.111Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/605/A111CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/ApJ/765/L41 : Asteroseismic classification of KIC objects (Stello+, 2013)J/ApJ/827/50 : Kepler faint red giants (Mathur+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/605/A111https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/605/A111http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/605/A111https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/605/A111https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/605/A111http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/605/A111GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/605/A111/table1 (Stars with validated rotation periods)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/605/A111/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/605/A111/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/605/A111/table1?GETtext/xml+votable180.050000true291.1089236.813290.005555555555555556Cone search capability for table J/A+A/605/A111/table2 (Stars showing rotational modulation in their light curve, but probably due to pollution from a nearby star)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/605/A111/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/605/A111/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/605/A111/table2?GETtext/xml+votable180.050000true291.7051136.877190.0055555555555555564/922 5/3646 3692 3694 3704 3706 3730 3732 3734 3740-3741 3743 3776 3778 3780 3782-3785 3789 3792 6/14567 14573 14575 14578-14579 14581-14583 14588-14589 14591 14730-14731 14733-14735 14744 14746 14751 14772-14774 14781-14783 14794 14830 14915-14918 14924-14925 14932-14934 14940-14942 14947-14950 14953-14954 14956 14958-14959 14968-14969 15040 15044 15057 15059-15060 15109-15110 15116 15118-15119 15124 15126-15127 15145 15148-15150 15153 15155 15160 15172-15174 15176 15178 15232https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/605/A111?format=asciidefaultJ/A+A/605/A111/table1Stars with validated rotation periodsKICKepler IDmeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintnumaxFrequency of maximum poweruHzem.freqfloate_numax? Error on numaxuHzstat.errorfloatnullablednuLarge frequency separationuHzem.freq;src.varfloate_dnuError on dnuuHzstat.errorfloatTeffEffective TemperatureKphys.temperature.effectiveinte_Teff? Error on TeffKstat.error;phys.temperature.effectiveintnullableloggLogarithm of the surface gravitylog(cm.s**-2)phys.gravityfloate_logg? Error on logglog(cm.s**-2)stat.errorfloatnullableMMass of the starsolMassphys.massfloate_M? Error on MsolMassstat.errorfloatnullableProtSurface Rotation Perioddtime.periodfloate_ProtError on Protdstat.errorfloatCrowdingCrowding of the aperture (G1)stat.fit.paramfloatTcritCritical Perioddtime.periodfloatVsiniProjected velocitykm/sphys.velocfloate_VsiniError on Vsinikm/sstat.error;phys.veloc.rotatfloat_RAPositinos from KIC (right ascension part)degpos.eq.ra;meta.main_DEPositinos from KIC (declination part)degpos.eq.dec;meta.mainJ/A+A/605/A111/table2Stars showing rotational modulation in their light curve, but probably due to pollution from a nearby starKICKepler IDmeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintnumaxFrequency of maximum poweruHzem.freqfloate_numaxError on numaxuHzstat.errorfloatdnuLarge frequency separationuHzem.freq;src.varfloate_dnuError on dnuuHzstat.errorfloatTeffEffective TemperatureKphys.temperature.effectiveinte_Teff? Error on TeffKstat.error;phys.temperature.effectiveintnullableloggLogarithm of the surface gravitylog(cm.s**-2)phys.gravityfloate_logg? Error on logglog(cm.s**-2)stat.errorfloatnullableMMass of the starsolMassphys.massfloate_M? Error on MsolMassstat.errorfloatnullableProtSurface Rotation Perioddtime.periodfloate_ProtError on Protdstat.errorfloatCrowdingCrowding of the aperture (G1)stat.fit.paramfloatTcritCritical Perioddtime.periodfloatFlag[1/2] Value of the flag (2)meta.code.errorint_RAPositinos from KIC (right ascension part)degpos.eq.ra;meta.main_DEPositinos from KIC (declination part)degpos.eq.dec;meta.main