Search Publications

HD 41641: A classical δ Sct-type pulsator with chemical signatures of an Ap star

Ryabchikova, T.; Poretti, E.; Michel, E. +8 more

Context. Among the known groups of pulsating stars, δ Sct stars are one of the least understood. Theoretical models do not predict the oscillation frequencies that observations reveal. Complete asteroseismic studies are necessary to improve these models and better understand the internal structure of these targets.
Aims: We study the δ Sct st…

Disentangling planetary and stellar activity features in the CoRoT-2 light curve

Deleuil, M.; Meunier, N.; Lanza, A. F. +7 more

Aims: Stellar activity is an important source of systematic errors and uncertainties in the characterization of exoplanets. Most of the techniques used to correct for this activity focus on an ad hoc data reduction.
Methods: We have developed a software for the combined fit of transits and stellar activity features in high-precision long…

Stellar classification of CoRoT targets

Deeg, H.; Deleuil, M.; Moutou, C. +4 more

Context. The CoRoT mission was the first dedicated to the search for exoplanets from space. The CoRoT exoplanet channel observed about 163 600 targets to detect transiting planetary companions. In addition to the search for exoplanets, the extremely precise photometric time series provided by CoRoT for this vast number of stars is an invaluable re…