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Possible detection of phase changes from the non-transiting planet HD 46375b by CoRoT
P. Gaulme, M. Vannier, T. Guillot +19
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…
Venus wind map at cloud top level with the MTR/THEMIS visible spectrometer. I. Instrumental performance and first results
P. Gaulme, F. -X Schmider, C. Grec +3
Solar light gets scattered at cloud top level in Venus' atmosphere, in the visible range, which corresponds to the altitude of 67 km. We present Doppler velocity measurements perfo…
Mode width fitting with a simple bayesian approach. Application to CoRoT targets HD 181420 and HD 49933
P. Gaulme, T. Appourchaux, P. Boumier
We investigate the asteroseismology of two solar-like targets as observed with the CoRoT satellite, with particular attention paid to the mode fitting. HD 181420 and HD 49933 are t…
HD 46375: seismic and spectropolarimetric analysis of a young Sun hosting a Saturn-like planet
P. Gaulme, S. Deheuvels, W. W. Weiss +13
HD 46375 is known to host a Saturn-like exoplanet orbiting at 0.04 AU from its host star. Stellar light reflected by the planet was tentatively identified in the 34-day CoRoT run a…
Asteroseismology of Solar-type Stars with Kepler I: Data Analysis
C. Karoff, W. J. Chaplin, T. Appourchaux +46
We report on the first asteroseismic analysis of solar-type stars observed by Kepler. Observations of three G-type stars, made at one-minute cadence during the first 33.5d of scien…
The solar-like CoRoT target HD 170987: spectroscopic and seismic observations
S. Mathur, R. A. Garcia, C. Catala +22
The CoRoT mission is in its third year of observation and the data from the second long run in the galactic centre direction are being analysed. The solar-like oscillating stars th…