J/ApJ/884/107ivo://CDS.VizieR/J/ApJ/884/107doi:10.26093/cds/vizier.18840107CDSZinn J.C.Stello D.Huber D.Sharma S.2025-06-10T07:08:20Z2023-10-27T13:14:17ZCDS support team

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

cds-question@unistra.frgiant-starsasteroseismologyvisible-astronomyinfrared-sourcesastronomical-modelsWe present the Bayesian Asteroseismology data Modeling (BAM) pipeline, an automated asteroseismology pipeline that returns global oscillation parameters and granulation parameters from the analysis of photometric time series. BAM also determines whether a star is likely to be a solar-like oscillator. We have designed BAM to specially process K2 light curves, which suffer from unique noise signatures that can confuse asteroseismic analysis, though it may be used on any photometric time series-including those from Kepler and TESS. We demonstrate that the BAM oscillation parameters are consistent within ~1.53%(random) +/-0.2%(systematic) and 1.51%(random) +/-0.6%(systematic) for {nu}_max_ and {Delta}{nu} with benchmark results for typical K2 red giant stars in the K2 Galactic Archaeology Program's (GAP) Campaign 1 sample. Application of BAM to 13,016 K2 Campaign 1 targets not in the GAP sample yields 104 red giant solar-like oscillators. Based on the number of serendipitous giants we find, we estimate an upper limit on the average purity in dwarf selection among C1 proposals of ~99%, which could be lower when considering incompleteness in BAM detection efficiency and proper-motion cuts specific to C1 Guest Observer proposals.2019ApJ...884..107Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/884/107CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)J/A+A/506/465 : Solar-like oscillations in red giants (Hekker+, 2009)J/ApJ/765/L41 : Asteroseismic classification of KIC objects (Stello+, 2013)J/A+A/579/A19 : K2 Variable Catalogue (Armstrong+, 2015)J/ApJS/224/2 : K2 EPIC stellar properties for 138600 targets (Huber+, 2016)J/ApJ/835/83 : K2 GAP data release. I. Campaign 1 (Stello+, 2017)J/ApJ/857/119 : Asymmetry of oscillations in 43 Kepler stars (Benomar+, 2018)J/ApJS/236/42 : Asteroseismology of ~16000 Kepler red giants (Yu+, 2018)J/ApJS/239/32 : APOKASC-2 catalog of Kepler evolved stars (Pinsonneault+, 2018)J/MNRAS/476/3233 : 14983 Kepler red giants (Hon+, 2018)J/ApJ/889/L34 : Oscillations in red giants from TESS data (Silva+, 2020)J/AJ/160/18 : M giant stars asteroseismology with Kepler+APOGEE (Auge+, 2020)J/ApJS/251/23 : K2 GAP DR2: campaigns 4, 6 & 7 (Zinn+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/884/107https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/884/107http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/884/107https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/884/107https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/884/107http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/884/107GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/884/107/table3 (Campaign 1 non-GAP BAM asteroseismic parameters for giants and giant candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/884/107/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/884/107/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/884/107/table3?GETtext/xml+votable180.050000true176.35951194-5.355841940.0055555555555555565/6772 6/25535 25576 25582 25587 25592 25596 26900-26901 26909-26911 26932 26941-26942 26944 26950 26953 26955 26959 26969-26972 26974 26978-26980 26983-26984 26988-26989 27001 27007 27025 27031 27075-27076 27078-27080 27082 27084 27086-27087 27094 27096 27098 27100 27109 27111 27122 27654 27660-27661 27663 27681-27683 27704-27706 27777-27778 27780 27783 27790 27808https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/884/107?format=asciiOpticalInfrareddefaultJ/ApJ/884/107/table3Campaign 1 non-GAP BAM asteroseismic parameters for giants and giant candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEPIC[201147434/201944519] EPIC identifiermeta.id;meta.mainlong2MASS2MASS name (HHMMSSss+DDMMSSs; J2000)meta.id.crosscharRAJ2000[166.6/181.2] Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-5.4/8.4] Declination (J2000)degpos.eq.dec;meta.mainnumax[3/250] Frequency of maximum power ({nu}_max_) (1)uHzem.freq;stat.maxfloate_numax[0.1/8]? numax uncertaintyuHzstat.errorfloatnullableDelnu[0.7/17.4]? Overtone frequency separation ({Delta}_{nu}_)uHzem.freq;src.varfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchare_Delnu[0.002/1.4]? Delnu uncertaintyuHzstat.errorfloatnullableAmax[153/2.6e+6] A_max_ value (2)(10-6)2.uHz-1stat.paramdoublee_Amax[18/931200] Amax uncertainty, {sigma}_Amax_(10-6)2.uHz-1stat.errordoubleSigmeso[226/5359] Amplitude of mesogranulation component, {sigma}_meso_ (2)(10-6)stat.paramdoublee_Sigmeso[8/555] Sigmeso uncertainty, {sigma}_{sigma}meso_(10-6)stat.errordoubletaumeso[0.007/0.4] Timescale of mesogranulation component, {tau}_meso_ (2)uHz**-1stat.paramdoublee_taumeso[0.0004/0.06] taumeso uncertainty, {sigma}_{tau}meso_uHz**-1stat.errordoubleSiggran[180/3295] Amplitude of granulation component, {sigma}_gran_ (2)(10-6)stat.paramdoublee_Siggran[7/419] Siggran uncertainty, {sigma}_{sigma}gran_(10-6)stat.errordoubletaugran[0.0015/0.12] Timescale of granulation component, {tau}_gran_ (2)uHz**-1stat.paramdoublee_taugran[0.0001/0.02] taugran uncertainty, {sigma}_{tau}gran_uHz**-1stat.errordoubleWN[0.3/190700] White-noise term (2)(10-6)2.uHz-1stat.paramdoublee_WN[0.4/2827] WN uncertainty, {sigma}_WN_(10-6)2.uHz-1stat.errordoubleGiant[1/2] Red giant? (2=red giant; or 1=potential giant)meta.code.classint