J/ApJ/872/L9ivo://CDS.VizieR/J/ApJ/872/L9doi:10.26093/cds/vizier.18729009CDSPedersen M.G.Chowdhury S.Johnston C.Bowman D.M.Aerts C.Handler G.,De Cat P.Neiner C.David-Uraz A.Buzasi D.Tkachenko A.Simon-Diaz S.,Moravveji E.Sikora J.Mirouh G.M.Lovekin C.C.Cantiello M.,Daszynska-Daszkiewicz J.Pigulski A.Vanderspek R.K.Ricker G.R.2023-09-05T16:33:51Z2020-08-31T09:56:51ZCDS support team

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

cds-question@unistra.frob-starsabsolute-magnitudevariable-starsphotometryvisible-astronomyUncertainties in stellar structure and evolution theory are largest for stars undergoing core convection on the main sequence. A powerful way to calibrate the free parameters used in the theory of stellar interiors is asteroseismology, which provides direct measurements of angular momentum and element transport. We report the detection and classification of new variable O and B stars using high-precision short-cadence (2 minutes) photometric observations assembled by the Transiting Exoplanet Survey Satellite (TESS). In our sample of 154 O and B stars, we detect a high percentage (90%) of variability. Among these we find 23 multiperiodic pulsators, 6 eclipsing binaries, 21 rotational variables, and 25 stars with stochastic low-frequency variability. Several additional variables overlap between these categories. Our study of O and B stars not only demonstrates the high data quality achieved by TESS for optimal studies of the variability of the most massive stars in the universe, but also represents the first step toward the selection and composition of a large sample of O and B pulsators with high potential for joint asteroseismic and spectroscopic modeling of their interior structure with unprecedented precision.2019ApJ...872L...9Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/872/L9CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/eso : ESO Science Archive Catalog (ESO, 1991-2020)I/345 : Gaia DR2 (Gaia Collaboration, 2018)I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)J/A+A/393/965 : Intrinsic freq. of slowly pulsating B stars (de Cat+, 2002)J/A+A/430/1143 : Stellar magnetic rotational phase curves (Bychkov+, 2005)J/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)J/ApJS/215/15 : SMaSH+: observations and companion detection (Sana+, 2014)J/A+A/583/A115 : FORS1 catalogue of stellar magnetic fields (Bagnulo+, 2015)J/A+A/580/A27 : Asteroseismology of KIC 10526294 (Moravveji+, 2015)J/AJ/151/68 : Kepler Mission. VII. Eclipsing binaries in DR3 (Kirk+, 2016)J/A+A/598/A84 : OB-type spectroscopic binaries (Almeida+, 2017)J/other/Sci/359.69 : Massive stars in 30 Dor (Schneider+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/872/L9https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/872/L9http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/872/L9https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/872/L9https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/872/L9http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/872/L9GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/872/L9/table1 (Identification numbers, parameters and variability classification of the 154 O and B stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/872/L9/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/872/L9/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/872/L9/table1?GETtext/xml+votable180.050000true0.9045753-28.41713640.0055555555555555565/8275 8280 6/16443 16490 16577 16617 16804 16982 16990 17067 17194 17312 32852 32877 32935 33008 33030 33049 33053 33074 33079 33084 33091-33092 33094 33098 33112-33113 33115 33126 33128 33137 33156 33190 33225 33361 33408 33563 33633 33808 33826 33860 33937 34823 34873 34878 34896 34914 35077 37028 37033 37051 37099 37101 37421-37422 37428 37450 37452 37454 37481 37485 37487 37496 37509 37513 37517 37521 37525 37536 37543 37573-37575 37582 37584 37587 37592-37593 37604 38917-38918 38925 38935 38941 38952 38957 38967-38968 39041 39044 39053 39057 39065 39075 45132 45343 45505 46081 46185 46335 46343 46368 46459 46619 46802 46812 46986 47005 47021 47028 47033 47056 47477 48146 48355 48455https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/872/L9?format=asciiOpticaldefaultJ/ApJ/872/L9/table1Identification numbers, parameters and variability classification of the 154 O and B starsSimbadNameSimbad column added by the CDSmeta.idcharnullableInstInstrument(s) (2)meta.id;instrcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTIC[12359289/469906369] TESS Input Cat. identifiermeta.id;meta.mainlongf_TIC[a] a: an LMC membermeta.codecharNameSource namemeta.idcharSpTypeSIMBAD spectral typesrc.spTypecharGaia? Gaia DR2 identifiermeta.idnullableGMag[-4.6/1.8]? Absolute Gaia G band magnitudemagphys.magAbsfloatnullableBP-RP[-0.4/3.2]? Gaia Blue-Red passbands color indexmagphot.color;em.opt.B;em.opt.RfloatnullableNspNumber(s) of high-resiolution spectra available in the ESO archive (2)meta.numbercharVarTypeVariability type (3)meta.note_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