Kepler-411 Star Activity: Connection between Starspots and Superflares

Abstract Stellar magnetic activity, just like that of the Sun, manifests itself in form flares and spots on surface star. In solar case, largest originate from large active regions. this work, we present a study activity star Kepler-411, including spot modeling planetary transits. Our goal was to search for connection between area starspots with energy superflares produced by Kepler-411 is K2V-type an average rotation period 10.52 days, radius 0.79 R ⊙ , mass 0.83 M which observed Kepler satellite about 600 days. Transit mapping allowed characterization 198 estimates their temperature. had (17 ± 7) × 10 3 km mean temperature 3800 700 K. Visual inspection light curves yields identification 65 superflares. The detected lasted 8 260 minutes varied 33 –10 35 ergs. power-law index flare frequency distribution as function (−2.04 0.13) Kepler-411. A positive correlation found when considering averages taken every 16–35 highest occurring 21 This timing probably related lifetime spots.