J/AJ/161/170ivo://CDS.VizieR/J/AJ/161/170doi:10.26093/cds/vizier.51610170CDSSayeed M.Huber D.Wheeler A.Ness M.K.2022-04-05T07:43:04Z2021-08-12T09:35:28ZCDS support team

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

cds-question@unistra.frstellar-massesstellar-radiivisible-astronomynarrow-band-photometryeffective-temperatureStellar light curves are well known to encode physical stellar properties. Precise, automated, and computationally inexpensive methods to derive physical parameters from light curves are needed to cope with the large influx of these data from space-based missions such as Kepler and TESS. Here we present a new methodology that we call "The Swan", a fast, generalizable, and effective approach for deriving stellar surface gravity (logg) for main-sequence, subgiant, and red giant stars from Kepler light curves using local linear regression on the full frequency content of Kepler long-cadence power spectra. With this inexpensive data-driven approach, we recover logg to a precision of ~0.02dex for 13822 stars with seismic logg values between 0.2 and 4.4dex and ~0.11dex for 4646 stars with Gaia-derived logg values between 2.3 and 4.6dex. We further develop a signal-to-noise metric and find that granulation is difficult to detect in many cool main-sequence stars (Teff<~5500K), in particular K dwarfs. By combining our logg measurements with Gaia radii, we derive empirical masses for 4646 subgiant and main-sequence stars with a median precision of ~7%. Finally, we demonstrate that our method can be used to recover logg to a similar mean absolute deviation precision for a TESS baseline of 27days. Our methodology can be readily applied to photometric time series observations to infer stellar surface gravities to high precision across evolutionary states.2021AJ....161..170Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/161/170CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/A+A/529/A89 : Kepler satellite variability study (Debosscher+, 2011)J/AJ/142/112 : KIC photometric calibration (Brown+, 2011)J/A+A/543/A160 : Normalized spectra of 82 Kepler red giants (Thygesen+, 2012)J/ApJ/757/161 : Spectroscopy of 56 exoplanet host stars (Torres+, 2012)J/MNRAS/423/122 : Abundances of 93 solar-type Kepler targets (Bruntt+, 2012)J/MNRAS/432/1203 : Rotation periods of M-dwarf stars (McQuillan+, 2013)J/ApJ/765/L41 : Asteroseismic classification of KIC objects (Stello+, 2013)J/ApJ/771/40 : Main-sequence A, F, G, and K stars photometry (Boyajian+, 2013)J/ApJ/787/110 : SAGA: Stromgren survey of seismic KIC stars (Casagrande+, 2014)J/ApJS/210/1 : Asteroseismic study of solar-type stars (Chaplin+, 2014)J/ApJS/211/2 : Revised stellar properties Q1-16 Kepler targets (Huber+, 2014)J/ApJS/215/19 : APOKASC catalog of Kepler red giants (Pinsonneault+, 2014)J/ApJ/808/16 : The Cannon: new approach to determine abundances (Ness+, 2015)J/MNRAS/452/2127 : Fundamental parameters Kepler stars (Silva Aguirre+, 2015)J/AJ/151/144 : ASPCAP weights for 15 APOGEE chemical elements (Garcia+, 2016)J/ApJ/818/43 : Stellar surface gravity measures of KIC stars (Bastien+, 2016)J/ApJ/823/114 : The Cannon: a new approach to determine masses (Ness+, 2016)J/ApJ/827/50 : Kepler faint red giants (Mathur+, 2016)J/A+A/597/A30 : Seismology & spectroscopy of CoRoGEE red giants (Anders+, 2017)J/ApJ/835/173 : Kepler asteroseismic LEGACY sample. II. (Silva Aguirre+, 2017)J/ApJ/836/5 : Abundances of LAMOST giants from APOGEE DR12 (Ho+, 2017)J/ApJ/844/102 : KIC star plxs from asteroseismology vs Gaia (Huber+, 2017)J/ApJS/229/30 : Revised stellar properties Q1-17 Kepler targets (Mathur+, 2017)J/AJ/156/264 : California-Kepler Survey VII. Planet radius gap (Fulton+, 2018)J/ApJ/865/68 : Abundances for 79 Sun-like stars within 100pc (Bedell+, 2018)J/ApJ/866/99 : Revised radii of KIC stars & planets Gaia DR2 (Berger+, 2018)J/ApJS/235/38 : Kepler planetary cand. VIII. DR25 reliability (Thompson+, 2018)J/ApJS/236/42 : Asteroseismology of ~16000 Kepler red giants (Yu+, 2018)J/MNRAS/478/4513 : GALAH Survey DR2 (Buder+, 2018)J/ApJS/245/34 : Abundances for 6 million stars from LAMOST DR5 (Xiang+, 2019)J/ApJS/241/12 : The Asteroseismic Target List (ATL) for TESS (Schofield+, 2019)J/AJ/159/193 : Stellar parameters ~30000 LAMOST DR1 Mdwarfs (Galgano+, 2020)J/AJ/159/280 : Gaia-Kepler stellar prop. catalog.I. KIC stars (Berger+, 2020)J/AJ/160/18 : M giant stars asteroseism. with Kepler and APOGEE (Auge+, 2020)http://github.com/MaryumSayeed/TheSwan : The Swan code archived on Zenodohttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/161/170https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/161/170http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/161/170https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/161/170https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/161/170http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/161/170GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/161/170/table3 (Stellar properties and output parameters for stars in the asteroseismic sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/161/170/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/161/170/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/161/170/table3?GETtext/xml+votable180.050000true291.1452936.694080.005555555555555556Cone search capability for table J/AJ/161/170/table4 (Stellar properties and output parameters for stars in the Gaia sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/161/170/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/161/170/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/161/170/table4?GETtext/xml+votable180.050000true290.9030536.7672690.0055555555555555564/922-923 933-935 944-946 5/3645-3647 3683 3704 3706 3729-3731 3760 3765 3788-3789 3792-3793 6/14559 14567 14573 14575 14577-14579 14730-14731 14738 14744 14746-14747 14749-14751 14792 14794-14795 14822 14828 14830-14831 14914-14915 15044-15045 15057 15059 15160-15161 15176-15178 15200 15232-15233https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/161/170?format=asciiOpticaldefaultJ/AJ/161/170/table1White noise level as a function of Kepler magnitude calculated using 3270 Kepler stars observed in short cadencerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKmag[8.01/17] Kepler magnitudemagphot.mag;em.IR.KfloatWNL[0.16/6231] White Noise Level in ppm^2^/uHzinstr.det.noisedoubleJ/AJ/161/170/table3Stellar properties and output parameters for stars in the asteroseismic samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKepler Input Catalog identifiermeta.id;meta.mainintKmag[7.39/15.9] Kepler broad band apparent magnitudemagphot.mag;em.IR.KfloatTeff[3247/6752] Effective temperature (1)Kphys.temperature.effectiveintRad[1.03/162] RadiussolRadphys.size.radiusfloatE_Rad[0.01/24] Upper 1{sigma} uncertainty in RadsolRadstat.error;stat.maxfloate_Rad[0.01/20] Lower 1{sigma} uncertainty in RadsolRadstat.errorfloatlogg[0.16/4.4] log surface gravity (2)log(cm.s**-2)phys.gravityfloatE_logg[0.006/0.14] Upper 1{sigma} uncertainty in logglog(cm.s**-2)stat.error;stat.maxfloate_logg[0.006/0.14] Lower 1{sigma} uncertainty in logglog(cm.s**-2)stat.errorfloatloggI[0.03/4.4] log inferred surface gravity (3)log(cm.s**-2)phys.gravityfloatE_loggI[0.02/0.42]? Upper 1{sigma} uncertainty in loggI (4)log(cm.s**-2)stat.error;stat.maxfloatnullablee_loggI[0.02/0.42]? Lower 1{sigma} uncertainty in loggI (4)log(cm.s**-2)stat.errorfloatnullableMassT[0.45/5.24] True mass (2)solMassphys.massfloatSimbadSimbad column added by the CDSmeta.ref.urlcharE_MassT[0.02/1.8] Upper 1{sigma} uncertainty in MassTsolMassstat.error;stat.maxfloate_MassT[0.007/2.6] Lower 1{sigma} uncertainty in MassTsolMassstat.errorfloatMassI[0.18/8]? Inferred mass (5)solMassphys.massdoublenullableE_MassI[0.001/623] Upper 1{sigma} uncertainty in MassIsolMassstat.error;stat.maxfloate_MassI[0.001/623] Lower 1{sigma} uncertainty in MassIsolMassstat.errorfloatSNR[0.02/1] Signal-to-Noise ratiostat.snrfloatFlag[0/1] Outliers are indicated by outlier flag equal to 1 (181 occurrences)meta.code.errorchar_RAPosition from Kepler Input Catalog (V/133) (right ascension part)degpos.eq.ra;meta.mainnullableindexed_DEPosition from Kepler Input Catalog (V/133) (declination part)degpos.eq.dec;meta.mainnullableindexedJ/AJ/161/170/table4Stellar properties and output parameters for stars in the Gaia sampleKICKepler Input Catalog identifiermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKmag[8.69/13.5] Kepler broad band apparent magnitudemagphot.mag;em.IR.KfloatTeff[4477/8444] Effective temperature (1)Kphys.temperature.effectiveintRad[0.72/14.9] Radius (1)solRadphys.size.radiusfloatE_Rad[0.01/1.6] Upper 1{sigma} uncertainty in RadsolRadstat.error;stat.maxfloate_Rad[0.01/1.7] Lower 1{sigma} uncertainty in RadsolRadstat.errorfloatlogg[2.33/4.59] log surface gravity (1)log(cm.s**-2)phys.gravityfloatE_logg[0.01/0.3] Upper 1{sigma} uncertainty in logglog(cm.s**-2)stat.error;stat.maxfloate_logg[0.01/0.27] Lower 1{sigma} uncertainty in logglog(cm.s**-2)stat.errorfloatloggI[1.46/4.52] log inferred surface gravitylog(cm.s**-2)phys.gravityfloatSimbadSimbad column added by the CDSmeta.ref.urlcharMassT[0.73/2.9] True mass (1)solMassphys.massfloatE_loggI[0.02/0.2] Upper 1{sigma} uncertainty in loggIlog(cm.s**-2)stat.error;stat.maxfloate_loggI[0.02/0.2] Lower 1{sigma} uncertainty in loggIlog(cm.s**-2)stat.errorfloatE_MassT[0.01/0.87] Upper 1{sigma} uncertainty in MassTsolMassstat.error;stat.maxfloate_MassT[0.01/0.87] Lower 1{sigma} uncertainty in MassTsolMassstat.errorfloatMassI[0.36/5.26]? Inferred mass (2)solMassphys.massdoublenullableE_MassI[0.003/4.32] Upper 1{sigma} uncertainty in MassIsolMassstat.error;stat.maxfloate_MassI[0.003/3.46] Lower 1{sigma} uncertainty in MassIsolMassstat.errorfloatSNR[0.54/1] Signal-to-Noise ratiostat.snrfloatFlag[0/1] Outliers are indicated by outlier flag equal to 1 (51 occurrences)meta.code.errorchar_RAPosition from Kepler Input Catalog (V/133) (right ascension part)degpos.eq.ra;meta.mainnullable_DEPosition from Kepler Input Catalog (V/133) (declination part)degpos.eq.dec;meta.mainnullable