J/AJ/163/226ivo://CDS.VizieR/J/AJ/163/226doi:10.26093/cds/vizier.51630226CDSLabadie-Bartz J.Carciofi A.C.Henrique de Amorim T.Rubio A.,Luiz Figueiredo A.Ticiani dos Santos P.Thomson-Paressant K.2022-10-12T12:15:46Z2022-09-28T08:36:49ZCDS support team

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

cds-question@unistra.frbe-starsvariable-starsinfrared-photometryvisible-astronomyphotometryTESS photometry is analyzed for 430 classical Be stars observed in the first year of the mission. The often complex and diverse variability of each object in this sample is classified to obtain an understanding of the behavior of this class as a population. Ninety-seven percent of the systems are variable above the noise level, with timescales spanning nearly the entire range of what is accessible with TESS, from tens of minutes to tens of days. The variability seen with TESS is summarized as follows. Nearly every system contains multiple periodic signals in the frequency regime between about 0.5 and 4/day. One or more groups of closely spaced frequencies is the most common feature, present in 87% of the sample. Among the Be stars with brightening events that are characteristic of mass ejection episodes (18% of the full sample, or 31% of early-type stars), all have at least one frequency group, and the majority of these (83%) show a concurrent temporary amplitude enhancement in one or more frequency groups. About one-third (34%) of the sample is dominated by longer-term trends (timescales >2day). Low-frequency stochastic signals are prominent in about 25% of the sample, with varying degrees of intensity. Higher-frequency signals (6<f<15/day) are sometimes seen (in 15% of the sample) and in most cases likely reflect p-mode pulsation. In rare cases (~3%), even higher frequencies beyond the traditional p-mode regime (f>15/day) are observed.2022AJ....163..226Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/163/226CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/gcvs : General Catalogue of Variable Stars (Samus+, 2007-2017)III/17 : Early-Type Emission-Line Stars (Wackerling 1970)III/67 : Catalogue of Be stars (Jaschek+, 1982)III/135 : Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)I/276 : Tycho Double Star Catalogue (TDSC) (Fabricius+ 2002)III/260 : General Catalogue of Ap and Am stars (Renson+ 2009)IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)J/AJ/107/1556 : Late B-type stars classification (Garrison+, 1994)J/A+AS/104/315 : Member of Herbig Ae/Be stellar group (The+ 1994)J/ApJS/99/135 : Rotation and Spectral Peculiarities (Abt+ 1995)J/A+A/304/235 : UBV Photometry of phi Per (Bozic+, 1995)J/A+A/378/861 : Spectroscopy of Be stars (Chauville+, 2001)J/A+A/368/912 : Polarization & rotational veloc. of Be stars (Yudin, 2001)J/AJ/124/2039 : LMC Blue variable stars from MACHO (Keller+, 2002)J/A+A/409/275 : Rotation and magnetic field in omega Ori (Neiner+, 2003)J/AcA/54/207 : Ephemerids of eclipsing binaries (Kreiner, 2004)J/AJ/127/2659 : CHANDRA observations of NGC 2264 (Ramirez+, 2004)J/A+A/440/305 : Fundamental param. of fast-rotating B stars (Fremat+, 2005)J/ApJS/158/193 : Catalog of Galactic {beta} Cephei stars (Stankov+, 2005)J/other/NewA/10.325 : 2MASS observations of Be stars (Zhang+, 2005)J/A+A/451/1053 : Fundamental parameters of Be stars (Fremat+, 2006)J/ApJ/647/1375 : BV light curves of {gamma} Cas (Smith+, 2006)J/ApJ/652/458 : BVRH{alpha} photom. candidates Be stars (Wisniewski+, 2006)J/ApJ/686/1280 : Discovery hot subdwarf companion to FY CMa (Peters+, 2008)J/A+A/477/917 : Beta Cephei stars in the ASAS-3 data. II. (Pigulski+, 2008)J/A+A/506/95 : Fourier analysis of HD 49330 CoRoT light curve (Huat+, 2009)J/AJ/137/3358 : Speckle interferometry of massive stars (Mason+, 2009)J/A+A/506/1055 : Hot stars emitting in X-ray. I. (Naze, 2009)J/AJ/140/328 : LMC High-amplitude delta Scuti stars (Garg+, 2010)J/A+A/542/A116 : Rotation in A-F stars (Ammler-von Eiff+, 2012)J/MNRAS/424/1925 : Spectrocopic Binarity of O and B type stars (Chini+, 2012)J/ApJ/760/10 : BV light curves of {gamma} Cas (1997-2011) (Henry+, 2012)J/A+A/545/A121 : {omicron} Puppis spectra (Koubsky+, 2012)J/MNRAS/426/2738 : Magnetic properties of {omega} Ori (Neiner+, 2012)J/A+A/555/A83 : X-ray properties of HM1 and IC2944/2948 (Naze+, 2013)J/AJ/149/7 : SDSS-III/APOGEE. I. Be stars (Chojnowski+, 2015)J/MNRAS/458/3479 : SVM selection of WISE YSO Candidates (Marton+, 2016)J/ApJ/828/47 : Radial velocities of the Be star HR 2142 (Peters+, 2016)J/AJ/152/207 : Spectroscopic Indicators in SeisMic Archive (Rainer+, 2016)J/A+A/595/A132 : Be star rotational velocities distribution (Zorec+, 2016)J/MNRAS/465/2432 : MiMeS magnetic analysis of O-type stars (Grunhut+, 2017)J/AJ/153/252 : Photom. variability BeSS-KELT stars (Labadie-Bartz+, 2017)J/MNRAS/466/546 : Parameters for the 172 {lambda} Boo stars (Murphy+, 2017)J/MNRAS/474/5287 : BeSOS Be stars stellar parameters (Arcos+, 2018)J/A+A/610/A70 : 28 Cygni BRITE and SMEI satellite photometry (Baade+, 2018)J/MNRAS/479/2909 : Variability Galactic Be stars using ASAS-3 (Bernhard+, 2018)J/A+A/618/A110 : IR nebulae around bright massive stars (Bodensteiner+, 2018)J/MNRAS/480/2953 : Catalogue of CP stars (HgMn, ApBp, AmFm) (Ghazaryan+, 2018)J/AJ/155/53 : Outbursts & disk variability Be stars (Labadie-Bartz+, 2018)J/A+A/619/A148 : Hot stars observed by XMM-Newton. II. (Naze+, 2018)J/A+A/613/A70 : Be stars in the exofield of CoRoT. II. (Semaan+, 2018)J/A+A/609/A108 : Stellar parameters Be stars with X-shooter (Shokry+, 2018)J/AJ/156/102 : TESS Input Catalog & Candidate Target List (Stassun+, 2018)J/A+A/641/A42 : Main-sequence comp to massive Be stars (Bodensteiner+, 2020)J/A+A/640/A36 : OB stars TESS phot. & HR spectroscopy (Bowman+, 2020)J/A+A/639/A81 : Variability of OB stars (Burssens+, 2020)J/AJ/160/32 : beta Cephei light curves KELT project (Labadie-Bartz+, 2020)J/AJ/159/119 : HST emission line survey of Andromeda. I.(Peters+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/163/226https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/163/226http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/163/226https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/163/226https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/163/226http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/163/226GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/163/226/table2 (Table of full (including the non-Be stars))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/226/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/226/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/226/table2?GETtext/xml+votable180.050000true132.72527-26.351540.0055555555555555565/9481 6/17158 20510 20546 20551 20800 20923 21324 21338 21343 21365 21439 21447 21465 21515 21529 21655 21657-21658 21661 21677 21682 21691 21698 21718 21729 21748 21815 21893 21943 21951 22023 22029 22032 22039-22040 22044 22046 22053-22054 22059 22074 22076 22078 22080 22088-22089 22093 22112 22121-22123 22131 22135 22167 22174 22197 22209-22210 22230 22236 22239 22243 22246 22249 22252 22254-22255 22435 22503 22514 22579 22615 22637 22854 22860 22863 22871 22876 22895-22896 22906 22911 23000 23375 23571-23572 23581 23627 23629 23632 23634 23637 23646 23649 23658 23665 23672 23716 23755 23763 23775 23778 23829 23851 23936 24081 24113 24142 24621 24969 26672 26801 26929 28673 33563 33826 34199 34878 36009 36942 37105 37231 37237 37301 37345 37351 37357 37359 37364 37493 37496 37592-37593 37616 37637 37641 37660 37680-37682 37699-37700 37704 37708 37714-37715 37723-37724 37731-37732 37742 37752-37753 37776 37782 37795 37816 37819 37822 37833 37852 37856 37862 37867-37869 37872 37876 37880 37882 37886-37887 37891 37893-37894 37897-37899 37901 37903 37906-37910 37915 37921-37923 37928 37937-37938 37953-37954 37962 37978 38023 38049 38218 38236 38538-38539 38565 38655 38831 38957 38967 38993 39133 39175 39191 39193 39199 39206 39216-39217 39220 39236 39242-39243 39254 39257 39260 39268 39300 39316 39332 39339 39346 39355 39397 39415 39509 39517 39558 39671 39679 39704 39715 39739 39806 39863 39922 40046 40049 40085 40161 40221 40242 40285 40451 40455 40671 40865 41105 41171 41277 41400 41408 41411 41425 41436 41439 41442 41445 41449 41454 41464 41468 41520 41556 41559 41567 41586 41588 41592 41594 41599 41646-41647 41654 41660 41668 41673-41674 41680-41681 41688 41691-41692 41694 41696-41697 41699 41712 41720-41721 41740-41741 41744 41747-41749 41752 41757 41759 41762 41767-41768 41772 41793 41796 41798 41808 41812 41814 41824 41828-41829 41836 41846 41854 41857-41858 41863-41864 41866 41871-41872 41891 41907 41928 41936 41943 41974 41976 41994 42015 42029 42059 42089 42094-42095 42110 42117 42123 42135 42142-42143 42147-42149 42151-42153 42157 42159-42160 42162 42165 42170 42173 42175 42183 42185 42195 42197 42204-42205 42207-42209 42213 42221 42223 42225-42226 42228-42229 42234 42263 42269 42271 42279 42281 42290 42292 42298 42300 42303 42305 42314 42323 42325 42332 42344 42346 42368 42370 42373 42381 42388 42392 42408 42412 42416-42417 42483 42497 42515-42516 42524 42529 42580 42609 42630 42640 42644 43009 43014 43016-43017 43023-43024 43027-43028 43032-43033 43036-43038 43041 43044 43048-43049 43051-43052 43056-43057 43059 43062-43063 43104 43107 43122 43138 43150 43165 43310 43333 43357 43443 43531 43637 43689 44616 46081 46459 47021 47033 47056 47121 47125 47246 47288 47704 48534https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/163/226?format=asciiOpticalInfrareddefaultJ/AJ/163/226/table2Table of full (including the non-Be stars)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTICInput Catalog identifiermeta.id;meta.tableONameCommon namemeta.id;meta.maincharSpTSpectral type, BeSS databasesrc.spTypecharq[0/1] Data quality (1)meta.code.qualintBeBe type (2)src.classcharsignalsSignals (3)meta.codecharNs[0/8]? Number of group identified in light curvemeta.numberintnullabletgsTypical groups (4)meta.codecharfg1[0/3.28]? Central frequency of g1d**-1em.freqfloatnullablefg2[0.8/6.53]? Central frequency of g2d**-1em.freqfloatnullablegratioStronger group?meta.codecharTmag[4.05/12.73] TESS Magnitudemagphot.mag;em.opt.Ifloatcontratio[0.0001/14.7] Contamination ratio (5)meta.codefloatRAJ2000[0.93/360] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-80.2/18.6] Declination (J2000)degpos.eq.dec;meta.mainSectorsC1TESS Sectors, C1obs.fieldcharSectorsC3TESS Sectors, C3obs.fieldcharSimbadSimbad column added by the CDSmeta.ref.urlchar