J/ApJS/244/37ivo://CDS.VizieR/J/ApJS/244/37doi:10.26093/cds/vizier.22440037CDSGoodarzi H.Mehrabi A.Khosroshahi H.G.He H.2020-07-21T12:42:54Z2020-04-20T12:18:43ZCDS support team

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

cds-question@unistra.frstellar-flaresWe analyze the light curve of 1740 flare stars to study the relationship between the magnetic feature characteristics and the identified flare activity. Coverage and stability of magnetic features are inspired by rotational modulation of light-curve variations and flare activity of stars are obtained using our automated flare detection algorithm. The results show that: (i) the flare time occupation ratio (or flare frequency) and the total power of flares increase by increasing relative magnetic feature coverage and contrast in F-M-type stars; (ii) magnetic feature stability is highly correlated with the coverage and the contrast of the magnetic structures, as this is the case for the Sun; and (iii) stability, coverage, and contrast of the magnetic features, time occupation ratio, and total power of flares increases for G-, K-, and M-type stars by decreasing the Rossby number due to the excess of the produced magnetic field from dynamo procedure until reaching to the saturation level.2019ApJS..244...37Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/244/37CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler, 2009)J/AJ/142/112 : KIC photometric calibration (Brown+, 2011)J/AJ/141/50 : White-light flares on cool Kepler stars (Walkowicz+, 2011)J/ApJ/743/48 : Stars with rot. periods & X-ray luminosities (Wright+, 2011)J/other/Nat/485.478 : Superflares on solar-type stars (Maehara+, 2012)J/ApJS/209/5 : Superflares of Kepler stars. I. (Shibayama+, 2013)J/ApJS/211/2 : Revised properties of Q1-16 Kepler targets (Huber+, 2014)J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)J/MNRAS/447/2714 : Flare stars across the H-R diagram (Balona+, 2015)J/ApJ/829/23 : Stellar flares from Q0-Q17 Kepler LCs (Davenport, 2016)J/AJ/152/158 : Final Kepler transiting pl. search (DR25) (Twicken+, 2016)J/ApJ/834/207 : Periodicity & magnitude of Kepler LCs (Mehrabi+, 2017)J/ApJ/851/116 : Long-term var. of Kepler sun-like stars (Montet+, 2017)J/ApJS/229/30 : Revised properties of Q1-17 Kepler targets (Mathur+, 2017)J/ApJS/232/26 : Catalog of Kepler flare stars (Van Doorsselaere+, 2017)J/ApJS/235/38 : Kepler pl. cand. VIII. DR25 reliability (Thompson+, 2018)J/ApJ/866/99 : Revised radii of KIC stars using Gaia DR2 (Berger+, 2018)J/ApJS/241/2 : Ionization profiles of Galactic HII regions (Luisi+, 2019)J/ApJS/241/29 : Flare catalog through LC data of Kepler DR25 (Yang+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/244/37https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/244/37http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/244/37https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/244/37https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/244/37http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/244/37GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/244/37/table1 (Parameters of Kepler flare stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/244/37/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/244/37/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/244/37/table1?GETtext/xml+votable180.050000true291.043041736.59377860.0055555555555555564/933 935 944 945 5/3646 3683 3689 3690 3691 3692 3693 3694 3729 3730 3731 3739 3784 3789 3792 6/14567 14573 14575 14577 14578 14579 14580 14582 14588 14590 14591 14731 14738 14744 14746 14750 14751 14780 14782 14792 14794 14816 14817 14826 14827 14830 14914 14915 14944 14949 14954 14955 15040 15041 15043 15044 15045 15057 15059 15060 15061 15062 15140 15141 15142 15144 15146 15152 15153 15155 15161 15172 15173 15174 15178 15200 15202 15232https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/244/37?format=asciidefaultJ/ApJS/244/37/table1Parameters of Kepler flare starsNf[21/827] Number of flaresmeta.numberintThr[0.00011/0.033] Threshold value of flare detectionstat.likelihood;obsdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKIC[757099/12784183] KIC number (1)meta.id;meta.mainintProt[0.2/44.8] Rotation period of the star (2)dtime.periodfloatiac[0.069/0.43] Auto-correlation indexstat.correlationdoubleR[0.00015/0.11] Effective range of light curve variationsrc.var.amplitudedoubleRf[0.00036/0.032] Time occupation ratio of flaresstat.fit.omcdoublePf[6.6e+19/2.8e+23] Total power of flaresJ/sphys.luminositydoubleMf[1.2e+22/3.2e+25] Average flux magnitude of flaresJ/sphys.luminositydoubleMass[0.25/1.28] Mass of the star (1)solMassphys.massfloatRad[0.17/3.44] Radius of the star (1)solRadphys.size.radiusfloatTeff[3202/7171] Effective temperature of the star (1)Kphys.temperature.effectivefloatlogg[3.5/5.2] log of surface gravity (1)log(cm.s**-2)phys.gravityfloat[Fe/H][-1.7/0.6] log of Fe/H metallicity (1)log(Sun)phys.abund.ZfloatRo[0.0052/2.12] Rossby numberstat.paramdoubleKCatDisplay the data from Huber+, 2014, J/ApJS/211/2 and McQuillan+, 2014, J/ApJS/211/24meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_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