Pierre Barge

TL;DR: In this paper, the authors reported the discovery of very shallow (DF/F = 3.4 10-4), periodic dips in the light curve of an active V = 11.7 G9V star observed by the CoRoT satellite, which they interpret as due to the presence of a transiting companion.

TL;DR: In this article, an intensive observational campaign carried out with HARPS at the 3.6 m telescope at La Silla on the star CoRoT-7 was reported, where several approaches were used to extract the radial velocity signal of the planet(s) from the stellar activity signal.

TL;DR: The presence of radial and non-radial oscillations in more than 300 giant stars is reported, finding giant stars with equally spaced frequency peaks in the Fourier spectrum of the time series, as well as giants for which the spectrum seems to be more complex.

TL;DR: CoRoT-Exo-3b as discussed by the authors is the first very massive transiting planetary companion with a short orbital period, observed from May to October 2007 for 152 days, and has a radius of 101 ± 007 R Jup and transits around its F3-type primary every 426 days in a synchronous orbit.

TL;DR: In this article, a spot modeling of the optical variability of the star during 142 days of uninterrupted observations performed by CoRoT with unprecedented photometric precision is presented, where the best results in terms of mapping of the surface brightness inhomogeneities are obtained by means of maximum entropy regularized models.