J/ApJS/232/26ivo://CDS.VizieR/J/ApJS/232/26doi:10.26093/cds/vizier.22320026CDSVan Doorsselaere T.Shariati H.Debosscher J.2017-11-08T11:08:41Z2017-11-08T11:52:43ZCDS support team

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

cds-question@unistra.frvariable-starseffective-temperaturestellar-radiiWe aim to perform a statistical study of stellar flares observed by Kepler. We want to study the flare amplitude, duration, energy, and occurrence rates, and how they are related to the spectral type and rotation period. To that end, we have developed an automated flare detection and characterization algorithm. We have harvested the stellar parameters from the Kepler input catalog and the rotation periods from McQuillan et al. (2014, Cat. J/ApJS/211/24). We find several new candidate A stars showing flaring activity. Moreover, we find 653 giants with flares. From the statistical distribution of flare properties, we find that the flare amplitude distribution has a similar behavior between F+G types and K+M types. The flare duration and flare energy seem to be grouped between G+K+M types versus F types and giants. We also detect a tail of stars with high flare occurrence rates across all spectral types (but most prominent in the late spectral types), and this is compatible with the existence of "flare stars." Finally, we have found a strong correlation of the flare occurrence rate and the flare amplitude with the stellar rotation period: a quickly rotating star is more likely to flare often and has a higher chance of generating large flares.2017ApJS..232...26Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/232/26CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/232/26https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/232/26http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/232/26https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/232/26https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/232/26http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/232/26GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/232/26/table1 (Catalog of Kepler flare stars for 6662 stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/232/26/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/232/26/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/232/26/table1?GETtext/xml+votable180.050000true291.0430636.593811110.0055555555555555564/922 933 934 935 944 945 946 5/3645 3646 3647 3683 3692 3693 3694 3729 3730 3731 3760 3788 3789 3792 6/14559 14567 14573 14575 14577 14578 14579 14730 14731 14738 14744 14746 14749 14750 14751 14780 14782 14792 14794 14795 14816 14817 14818 14826 14827 14830 14914 14915 15044 15045 15057 15059 15060 15061 15062 15160 15161 15172 15173 15174 15176 15178 15200 15202 15232https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/232/26?format=asciidefaultJ/ApJS/232/26/table1Catalog of Kepler flare stars for 6662 starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKepler Input Catalog identifiermeta.id;meta.mainintDateKepler mission time of flare, BJD-2454833dtime.epochdoubleaAmplitude in flux unitssrc.var.amplitudedoublekFlare decayd**-1time.scaledoubleTeffEffective temperatureKphys.temperature.effectivefloatRadiusRadiussolRadphys.angSize;srcfloatlogglog surface gravitylog(cm.s**-2)phys.gravityfloat_RAPositions from KIC (right ascension part)degpos.eq.ra;meta.mainindexed_DEPositions from KIC (declination part)degpos.eq.dec;meta.mainindexed