Possible detection of phase changes from the non-transiting planet HD 46375b by CoRoT

  title={Possible detection of phase changes from the non-transiting planet HD 46375b by CoRoT},
  author={Patrick Gaulme and Martin Vannier and Tristan Guillot and Beno{\^i}t Mosser and David L. Mary and Werner W. Weiss and François-Xavier Schmider and Sandra Bourguignon and Hans J. Deeg and Clara R'egulo and Suzanne Aigrain and Jodi Schneider and Hans Bruntt and S{\'e}bastien Deheuvels and Jean-François Donati and Thierry Appourchaux and Michel Auvergne and Annie Baglin and Frédéric Baudin and Claude Catal{\`a} and Eric Michel and R'eza Samadi},
  journal={Astronomy and Astrophysics},
Context. The present work deals with the detection of phase changes in an exoplanetary system. HD 46375 is a solar analog known to host a non-transiting Saturn-mass exoplanet with a 3.0236 day period. It was observed by the CoRoT satellite for 34 days during the fall of 2008. Aims. We attempt to identify at optical wavelengths, the changing phases of the planet as it orbits its star. We then try to improve the star model by means of a seismic analysis of the same light curve and the use of… 

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