Spot migration on the eclipsing binary KIC 9821078

Creative Commons License

BAHAR E., ÖZAVCI İ., ŞENAVCI H. V.

CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO, cilt.50, sa.2, ss.481-485, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 50 Sayı: 2
  • Basım Tarihi: 2020
  • Doi Numarası: 10.31577/caosp.2020.50.2.481
  • Dergi Adı: CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.481-485
  • Anahtar Kelimeler: Binaries: eclipsing, stars: magnetic activity, methods: light curve inversion, starspots: migration
  • Ankara Üniversitesi Adresli: Evet

Özet

High precision and continuous light curves obtained from the Kepler Space Telescope provide significant information about the behavior of cool star-spots. In this study, we obtain surface maps of the eclipsing binary KIC 9821078 with the help of the light curve inversion method to reveal longitudinal spot migration from Kepler long-cadence (LC) light curves. We also present an up-to-date solution from light and radial velocity curves. The inversion results find at least two dominant spot regions that migrate from lower to higher longitudes as a consequence of solar-like differential rotation.