Search Publications
CSI 2264: Characterizing Young Stars in NGC 2264 with Stochastically Varying Light Curves
Song, Inseok; Gillen, Edward; Cody, Ann Marie +25 more
We provide CoRoT and Spitzer light curves and other supporting data for 17 classical T Tauri stars in NGC 2264 whose CoRoT light curves exemplify the “stochastic” light curve class as defined in 2014 by Cody et al. The most probable physical mechanism to explain the optical variability within this light curve class is time-dependent mass accretion…
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…
The SpaceInn-SISMA Database: Characterization of a Large Sample of Variable and Active Stars by Means of Harps Spectra
Roth, M.; Poretti, E.; Michel, E. +6 more
We created a large database of physical parameters and variability indicators by fully reducing and analyzing the large number of spectra taken to complement the asteroseismic observations of the COnvection, ROtation and planetary Transits (CoRoT) satellite. 7103 spectra of 261 stars obtained with the ESO echelle spectrograph HARPS have been store…
Finest light curve details, physical parameters, and period fluctuations of CoRoT RR Lyrae stars
Derekas, A.; Szabó, R.; Sódor, Á. +1 more
The CoRoT satellite supplied the scientific community with a huge data base of variable stars. Among them the RR Lyrae stars have intensively been discussed in numerous papers in the last few years, but the latest runs have not been checked to find RR Lyrae stars up to now. Our main goal was to fill this gap and complete the CoRoT RR Lyrae sample.…
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…
V620 Oph = CoRoT 104190253 - a misclassified RR Lyrae star
Benko, J. M.