5 papers
Modeling of Alpha Cen and Procyon using VLTI observations
P. Kervella, F. Thevenin, P. Morel +4
We present a novel approach to model the nearby stars Alpha Cen A & B and Procyon A using asteroseismic and interferometric constraints. Using the VINCI instrument installed at the…
VINCI / VLTI observations of Main Sequence stars
P. Kervella, F. Thevenin, P. Morel +7
Main Sequence (MS) stars are by far the most numerous class in the Universe. They are often somewhat neglected as they are relatively quiet objects (but exceptions exist), though t…
Atmospheric structure and acoustic cut-off frequency of roAp stars
N. Audard, F. Kupka, P. Morel +2
Some of the rapidly oscillating (CP2) stars, have frequencies which are larger than the theoretical acoustic cut-off frequency. As the cut-off frequency depends on the T(tau) relat…
Inferring the equatorial solar tachocline from frequency splittings
T. Corbard, G. Berthomieu, J. Provost +1
Helioseismic inversions, carried out for several years on various ground-based and spatial observations, have shown that the solar rotation rate presents two principal regimes: a q…
Updated Solar Models
P. Morel, J. Provos, G. Berthomieu
Solar models computed with mass loss, microscopic diffusion of helium and heavy elements and with updated physics have been evolved from the pre-main sequence to present days; they…