J/ApJ/927/167ivo://CDS.VizieR/J/ApJ/927/167doi:10.26093/cds/vizier.19270167CDSLi T.Li Y.Bi S.Bedding T.R.Davies G.Du M.2024-11-06T20:23:50Z2024-02-09T13:50:09ZCDS support team

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

cds-question@unistra.frasteroseismologychemical-abundancesstellar-agesstellar-massesstellar-radiigiant-starsThis paper presents a correction to the scaling relations for red giant stars using model-based masses and radii. We measure radial-mode frequencies from Kepler observations for 3642 solar-like oscillators on the red giant branch and use them to characterize the stars with grid-based modeling. We determine fundamental stellar parameters with good precision: the typical uncertainty is 4.5% for mass, 16% for age, 0.006dex for surface gravity, and 1.7% for radius. We also achieve good accuracy for estimated masses and radii, based on a comparison with those determined for eclipsing binaries. We find a systematic offset of ~15% in mass and ~7% in radius between the modeling solutions and the scaling relations. Further investigation indicates that these offsets are mainly caused by a systematic bias in the {Delta}{nu} scaling relation: the original scaling relation underestimates the {Delta}{nu} value by ~4%, on average, and it is important to correct for the surface term in the calibration. We find no significant offset in the {nu}_max_ scaling relation, although a clear metallicity dependence is seen and we suggest including a metallicity term in the formulae. Lastly, we calibrate new scaling relations for red giant stars based on observed global seismic parameters, spectroscopic effective temperatures and metallicities, and modeling-inferred masses and radii.2022ApJ...927..167Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/927/167CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)V/164 : LAMOST DR5 catalogs (Luo+, 2019)V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)III/284 : APOGEE-2 data from DR16 (Johnsson+, 2020)J/A+A/543/A54 : Main-sequence and subgiant oscillations (Appourchaux+, 2012)J/A+A/540/A143 : Oscillations of red giants from Kepler (Mosser+, 2012)J/A+A/541/A41 : Basic tracks at Zinit=0.006 (Mowlavi+, 2012)J/A+A/572/L5 : Evolution state of RGBs from seismology (Mosser+, 2014)J/A+A/573/A89 : STAGGER-grid of 3D stellar models. III. (Magic+, 2015)J/MNRAS/452/2127 : Fundamental param. of Kepler stars (Silva Aguirre+, 2015)J/ApJ/832/121 : 4-yr RV survey of red giant in EBs (Gaulme+, 2016)J/A+A/588/A87 : Seismic global parameters of 6111 KIC (Vrard+, 2016)J/MNRAS/469/4578 : Deep learning classif. in asteroseismology (Hon+, 2017)J/ApJ/844/102 : KIC star plx from asteroseismology vs Gaia (Huber+, 2017)J/ApJ/835/172 : Kepler asteroseismic LEGACY sample. I. (Lund+, 2017)J/ApJ/835/173 : Kepler ast. LEGACY sample. II. (Silva Aguirre+, 2017)J/ApJS/236/42 : Asteroseismology of ~16000 Kepler red giants (Yu+, 2018)J/ApJ/887/203 : Core rot. period measurements of KIC stars (Tayar+, 2019)J/ApJS/245/34 : Abundances for 6 million stars from LAMOST (Xiang+, 2019)J/MNRAS/495/2363 : Asteroseismology of 36 Kepler subgiants. I. (Li+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/927/167https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/927/167http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/927/167https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/927/167https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/927/167http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/927/167GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/927/167/table4 (Observed constraints and model-inferred stellar parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/927/167/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/927/167/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/927/167/table4?GETtext/xml+votable180.050000true290.444255344.08603580.0055555555555555564/922-923 933-935 944-946 5/3645-3647 3683 3704 3706 3729-3731 3760 3788-3789 3792 6/14559 14567 14573 14575 14577-14579 14730-14731 14738 14744 14746-14747 14750-14751 14792 14794-14795 14822 14828 14830-14831 14914-14915 15044-15045 15057 15059-15062 15160 15172-15174 15178 15200 15232https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/927/167?format=asciidefaultJ/ApJ/927/167/table4Observed constraints and model-inferred stellar parametersSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[0/5310] Internal index numbermeta.idintKIC[893214/12885196] Kepler Input Catalog numbermeta.id;meta.mainintSourceSurvey source identifier ("APOGEE"=2510 occurrences or "LAMOST"=2801 occurrences)meta.refcharDnu[1/19] Observed {delta}_{nu}_ scaling relationuHzem.freq;arith.difffloate_Dnu[0.008/0.3] Uncertainty in DnuuHzstat.error;em.freq;arith.difffloatnumax[7/271] Observed {nu}_max_ scaling relationuHzem.freq;stat.maxfloate_numax[0.17/71] Uncertainty in numaxuHzstat.error;em.freqfloatTeff[3977/6026] Observed effective temperatureKphys.temperature.effectiveinte_Teff[6/820] Uncertainty in TeffKstat.error;phys.temperature.effectiveintlogg[1.6/4.8] Observed log surface gravitylog(cm.s**-2)phys.gravityfloate_logg[0.015/1.7] Uncertainty in log (g)log(cm.s**-2)stat.error;phys.gravityfloat[M/H][-0.3/0.3] Observed metallicityphys.abundfloate_[M/H][0.005/0.8] Uncertainty in [M/H]stat.error;phys.abundfloatMass[0.8/2.1] Model-inferred stellar masssolMassphys.massfloatE_Mass[0/0.9] Upper uncertainty in MasssolMassstat.error;stat.max;phys.massfloate_Mass[0/1.1] Lower uncertainty in MasssolMassstat.error;stat.min;phys.massfloatAge[0.7/21.1] Model-inferred stellar ageGyrtime.agefloatE_Age[0/18.2] Upper uncertainty in AgeGyrstat.error;stat.max;time.agefloate_Age[0/15.5] Lower uncertainty in AgeGyrstat.error;stat.min;time.agefloatRad[3.6/26.5] Model-inferred stellar radiussolRadphys.angSizefloatE_Rad[0/2.6] Upper uncertainty in RadsolRadstat.error;stat.max;phys.angSizefloate_Rad[0/4.4] Lower uncertainty in RadsolRadstat.error;stat.min;phys.angSizefloatlogg-e[1.7/3.4] Model-inferred log stellar surface gravitylog(cm.s**-2)phys.gravityfloatE_logg-e[0/0.2] Upper uncertainty in log(g)elog(cm.s**-2)stat.error;stat.max;phys.gravityfloate_logg-e[0/0.1] Lower uncertainty in log(g)elog(cm.s**-2)stat.error;stat.min;phys.gravityfloatH17Display data from Hon+ 2017, J/MNRAS/469/4578meta.ref.urlintnullableAPOGEEDisplay data from APOGEE DR16 (III/284) within 3"meta.ref.urlcharLAMOSTDisplay data from LAMOST DR5 (V/164) within 3"meta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main