Analysis of the exoplanet containing system Kepler-91

Budding E., PÜSKÜLLÜ Ç., Rhodes M. D., Demircan O., Erdem A.

ASTROPHYSICS AND SPACE SCIENCE, vol.361, no.1, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 361 Issue: 1
  • Publication Date: 2016
  • Doi Number: 10.1007/s10509-015-2564-4
  • Journal Name: ASTROPHYSICS AND SPACE SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Stars: close binary, Stellar dynamics, Exoplanets, Light curve analysis, PLANETARY CANDIDATES, STAR, RESONANCE
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

We have applied the graphical user interfaced close binary system analysis program WINFITTER to an intensive study of Kepler-91 using all the available photometry from the NASA Exoplanet Archive (NEA) at the Caltech website: http://exoplanetarchive.ipac.caltech.edu. Our fitting function for the tidal distortion derives from the relevant Radau equation and includes terms up to the fifth power of the fractional radius. This results in a systematic improvement in the mass ratio estimation over that of Lillo-Box et al. (Astron. Astrophys. 562:A109, 2014a) and our derived value for the mass ratio is in close agreement with that inferred from recent high-resolution spectroscopic data.