J/other/CoSka/51ivo://CDS.VizieR/J/other/CoSka/51.78CDSMaryeva O.Bicz K.Xia C.Baratella M.Cechvala P.Vida K.2021-09-16T10:46:54Z2021-03-22T08:05:00ZCDS support team

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

cds-question@unistra.fropen-star-clustersstellar-flaresThe study is devoted to search for flare stars among confirmed members of Galactic open clusters using high-cadence photometry from TESS mission. We analyzed 957 high-cadence light curves of members from 136 open clusters. As a result, 56 flare stars were found, among them 8 hot B-A type objects. Of all flares, 63 % were detected in sample of cool stars (Teff<5000K), and 2 % - in stars of spectral type G, while 23% in K-type stars and approximately 34% of all detected flares are in M-type stars. Using the FLATW'RM (FLAre deTection With Ransac Method) flare finding algorithm, we estimated parameters of flares and rotation period of detected flare stars. The flare with the largest amplitude appears on the M3 type EQ Cha star. Statistical analysis did not reveal any direct correlation between ages, rotation periods and flaring activity.2021CoSka..51...78Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/CoSka/51.78CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/CoSka/51.78https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/CoSka/51.78http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/CoSka/51.78https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/CoSka/51.78https://vizier.iucaa.in/viz-bin/votable?-source=J/other/CoSka/51.78http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/CoSka/51.78GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/CoSka/51.78/table1 (List of are stars selected in this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/CoSka/51.78/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/CoSka/51.78/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/CoSka/51.78/table1?GETtext/xml+votable180.050000true82.5572219011583-1.51948241376490.0055555555555555565/9307 6/16488 16490-16491 21530 21774 22860 22881 22993 23410 23416 28095 28136 28138 28439 28481 28486 28488 34495 34536 34539 37012-37013 37056 37313 37328 37592 37686 37695 37730 37853 38539 38563-38564 39352 39354-39355 42464https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/CoSka/51.78?format=asciidefaultJ/other/CoSka/51.78/table1List of are stars selected in this workNFlNumber of flaresmeta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterName of parent clustermeta.id.parentcharGaiaDR2Gaia DR2 IDmeta.id;meta.mainNameSIMBAD namemeta.idcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainSpTypeSpectral types are taken from the SIMBAD databasesrc.spTypecharTeff? Effective temperature taken from Gaia DR2 (Gaia Collaboration, 2018, Cat. I/345)Kphys.temperature.effectiveintnullableProt? Rotation Perioddtime.periodfloatnullable