J/MNRAS/491/3586ivo://CDS.VizieR/J/MNRAS/491/3586doi:10.26093/cds/vizier.74913586CDSLi G.Van Reeth T.Bedding T.R.Murphy S.J.Antoci V.Ouazzani R.-M.,Barbara N.H.2024-08-20T20:14:47Z2021-06-09T11:47:47ZCDS support team

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

cds-question@unistra.frpeculiar-variable-starschemical-abundanceseffective-temperaturevisible-astronomyWe report our survey of {gamma} Dor stars from the 4-yr Kepler mission. These stars pulsate mainly in g modes and r modes, showing period-spacing patterns in the amplitude spectra. The period-spacing patterns are sensitive to the chemical composition gradients and the near-core rotation, hence they are essential for understanding the stellar interior. We identified period-spacing patterns in 611 {gamma} Dor stars. Almost every star pulsates in dipole g modes, while about 30 per cent of stars also show clear patterns for quadrupole g modes and 16 per cent of stars present r-mode patterns. We measure periods, period spacings, and the gradient of the period spacings. These three observables guide the mode identifications and can be used to estimate the near-core rotation rate. We find many stars are hotter and show longer period-spacing patterns than theory. Using the traditional approximation of rotation (TAR), we inferred the asymptotic spacings, the near-core rotation rates, and the radial orders of the g and r modes. Most stars have a near-core rotation rate around 1d^-1^ and an asymptotic spacing around 4000s. We also find that many stars rotate more slowly than predicted by theory for unclear reasons. 11 stars show rotational splittings with fast rotation rates. We compared the observed slope-rotation relation with the theory and find a large spread. We detected rotational modulations in 58 stars and used them to derive the core-to-surface rotation ratios. The interiors rotate faster than the cores in most stars, but by no more than 5 per cent.2020MNRAS.491.3586Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/491/3586CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/A+A/472/241 : UV Flux distributions of gamma Dor stars (Gerbaldi+, 2007)J/A+A/499/967 : Long-term monitoring of {gamma} Dor stars (Cuypers+, 2009)J/A+A/556/A52 : {gamma} Dor stars from Kepler (Tkachenko+, 2013)J/A+A/574/A17 : Period spacings in gamma Dor stars (Van Reeth+, 2015)J/MNRAS/458/2307 : gamma Dor stars spectroscopic surveyJ/A+A/626/A121 : Buoyancy radius of {gamma} Dor stars (Ouazzani+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/491/3586https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/491/3586http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/491/3586https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/491/3586https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/491/3586http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/491/3586GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/491/3586/table1 (Sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/491/3586/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/491/3586/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/491/3586/table1?GETtext/xml+votable180.050000true295.6337338.91511190.0055555555555555564/922 5/3645-3647 3683 3693 3695 3704 3706 3732 3734 3740 3776 3782-3783 3789 3792 6/14567 14575 14577-14579 14730-14731 14744 14746 14749-14751 14768 14770-14771 14776 14778-14779 14792 14794 14828 14830 14914-14916 14918 14920 14922-14923 14926 14932-14933 14935 14940-14942 14945-14947 14950 14952 14955-14956 14958-14959 14964-14966 14968-14969 14972 14974-14975 15040 15057 15059-15060 15109-15113 15115 15118 15120-15122 15124-15126 15137 15141 15145-15146 15149-15150 15153-15155 15160 15172-15174 15176 15178 15200https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/491/3586?format=asciiOpticaldefaultJ/MNRAS/491/3586/table1SampleSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintT5indicates near-core and surface rotation rates in table5meta.ref.urlcharKICKIC numbermeta.id;meta.mainintprimaryKICmagKIC magnitudephot.mag;em.optdoublelAngular degree l, for rossbe modes, l = k + |m|pos.eqfloatmAzimuthal order mstat.paramfloatPfirstPeriod of the first peakdtime.periodfloatDeltaPmaxLargest period spacingstime.period;stat.maxdoubleDeltaPminSmallest period spacingstime.perioddoubleDeltaPmeanMean period spacingstime.period;stat.meandoubleSlopeSlope (days/days)arith.graddoublee_SlopeSlope error (days/days)stat.errordoubleTeffEffective temperature from DR 25Kphys.temperature.effectiveinte_TeffEffective temperature errorKstat.error;phys.temperature.effectiveintL? Luminosity in solar luminositysolLumphys.luminositydoublenullablee_L? Luminosity errorsolLumstat.errordoublenullable[Fe/H]? Abundance, [Fe/H]phys.abund.Fefloatnullablee_[Fe/H]? Abundance, Fe/H errorstat.error;phys.abund.Fefloatnullablelogg? Surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg? Surface gravity errorlog(cm.s**-2)stat.errorfloatnullablePi0Asymptotic spacingsem.freq;src.vardoubleE_Pi0Asymptotic spacing upper errorsstat.error;stat.maxdoublee_Pi0Asymptotic spacing lower errorsstat.errordoublefrotNear-core rotationd**-1em.freq;src.vardoubleE_frotRotation upper errord**-1stat.error;stat.maxdoublee_frotRotation lower errord**-1stat.errordoubleNminMinimum radial orderstat.fit.paramintNmaxMaximum radial orderstat.fit.paramintTeffL? Effective temperature from LAMOSTKphys.temperature.effectivefloatnullableloggL? Surface gravity from LAMOSTlog(cm.s**-2)phys.gravityfloatnullable[Fe/H]L? Abundance, [Fe/H] from LAMOSTphys.abund.FefloatnullableRVL? Radial velocity from LAMOSTkm/sphys.veloc;pos.heliocentricfloatnullable_RAPositions from KIC (right ascension part)degpos.eq.ra;meta.main_DEPositions from KIC (declination part)degpos.eq.dec;meta.mainPlastPeriod of the last peakdtime.periodfloatPmeanMean perioddtime.period;stat.meanfloatJ/MNRAS/491/3586/table5The near-core and surface rotation rates, and their ratios of 58 stars which show surface modulation signalsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKIC identification numbermeta.id;meta.mainintTypeType (1)src.classcharfcoreNear-core rotation rated**-1em.freq;src.varfloate_fcorerms uncertainty on fcored**-1stat.errorfloatfsurfSurface rotation rated**-1em.freq;src.varfloate_fsurfrms uncertainty on fsurfd**-1stat.errorfloatfcore/fsurfNear-core to surface rotation rates ratiostat.fit.paramfloate_fcore/fsurfrms uncertainty on fcore/fsurfstat.errorfloat