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 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 361 Issue: 1
  • Publication Date: 2016
  • Doi Number: 10.1007/s10509-015-2564-4
  • Title of Journal : ASTROPHYSICS AND SPACE SCIENCE
  • Keywords: Stars: close binary, Stellar dynamics, Exoplanets, Light curve analysis, PLANETARY CANDIDATES, STAR, RESONANCE

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.