310 citations · 1k across the 15 of their papers we have counts for
8 papers · 1 filter
Sensitivity of low degree oscillations to the change in solar abundances
A. Zaatri, J. Provost, G. Berthomieu +2
Context. The most recent determination of the solar chemical composition, using a time-dependent, 3D hydrodynamical model of the solar atmosphere, exhibits a significant decrease o…
The interferometric diameter and internal structure of Sirius A
P. Kervella, F. Thevenin, P. Morel +2
The interferometric observations of dwarf stars in the solar neighbourhood, combined with Hipparcos parallaxes provide very precise values of their linear diameters. In this paper,…
The diameters of Alpha Centauri A and B - A comparison of the asteroseismic and VINCI/VLTI views
P. Kervella, F. Thevenin, D. Segransan +4
We compare the first direct angular diameter measurements obtained on our closest stellar neighbour, Alpha Centauri, to recent model diameters constrained by asteroseismic observat…
Asteroseismology and calibration of alpha Cen binary system
F. Thevenin, J. Provost, P. Morel +3
Using the oscillation frequencies of alpha Cen A recently discovered by Bouchy & Carrier, the available astrometric, photometric and spectroscopic data, we tried to improve the cal…
Atomic diffusion in star models of type earlier than G
P. Morel, F. Thevenin
We find that the radiative diffusivity associated with the radiative viscosity generates a mixing that diminishes the efficiency of the gravitational settling in the external layer…
Calibrations of alpha Cen A & B
P. Morel, J. Provost, Y. Lebreton +2
Detailed evolutionary models of the visual binary alpha Centauri, including pre main-sequence evolution, have been performed using the masses recently determined by Pourbaix et al.…