Models of Metal-poor Stars with Gravitational Settling and Radiative Accelerations. II. The Age of the Oldest Stars
- D. VandenBerg, O. Richard, G. Michaud, J. Richer
- Physics
- 5 December 2001
Isochrones for ages between 12 and 18 Gyr have been derived from the evolutionary tracks presented in Paper I (Richard et al.) for masses from 0.5 to 1.0 M☉ and initial chemical abundances…
Evolution of Stars: The Photospheric Abundance Connection
- G. Michaud, A. Tutukov
- Physics
- 28 February 1991
Consistent Solar Evolution Model Including Diffusion and Radiative Acceleration Effects
- S. Turcotte, J. Richer, G. Michaud, C. Iglesias, F. Rogers
- Physics
- 1 September 1998
The solar evolution has been calculated including all the effects of the diffusion of helium and heavy elements. Monochromatic opacities are used to calculate radiative accelerations and Rosseland…
Diffusion in white dwarfs - New results and comparative study
- C. Paquette, C. Pelletier, G. Fontaine, G. Michaud
- Physics
- 1 May 1986
On presente de nouvelles estimations des echelles de temps de diffusion des elements lourds dans les naines blanches
Evolution of stars : the photospheric abundance connection : proceedings of the 145th Symposium of the International Astronomical Union, held in Zlatni Pjasaci (Golden Sands), Bulgaria, August 27-31,…
- G. Michaud, A. Tutukov
- Physics, Geology
- 1991
Setting The Stage.- Elements in the Cosmos: Origin of the Light Elements.- Chemical Evolution of Galaxies: Abundance Trends and Implications.- Supernova Abundance Generation.- Limitations of Stellar…
Implications of WMAP Observations on Li Abundance and Stellar Evolution Models
- O. Richard, G. Michaud, J. Richer
- Physics
- 28 September 2004
The Wilkinson Microwave Anisotropy Probe (WMAP) determination of the baryon-to-photon ratio implies, through big bang nucleosynthesis, a cosmological Li abundance larger, by a factor of 2-3, than the…
The Evolution of AmFm Stars, Abundance Anomalies, and Turbulent Transport
- J. Richer, G. Michaud, S. Turcotte
- Physics, Environmental Science
- 20 January 2000
Stellar evolution models of stars of 1.45-3.0 M☉ have been calculated, including the atomic diffusion of metals and radiative accelerations for all species in the OPAL opacities. As the abundances…
Diffusion coefficients for stellar plasmas
- C. Paquette, C. Pelletier, G. Fontaine, G. Michaud
- Physics
- 1 May 1986
On presente une methode approximee de calcul des coefficients de diffusion pour des plasmas denses caracteristiques des enveloppes de naines blanches
Atomic Diffusion in Stars
- G. Michaud, G. Alecian, J. Richer
- Physics
- 5 November 2015
Preface.- Observational Motivation and Brief History.- Part I: Physics of Transport Processes.- Atomic Transport: Diffusion Equations.- Radiative Accelerations.- Transport Coefficients.- Diffusion in…
Models for Solar Abundance Stars with Gravitational Settling and Radiative Accelerations: Application to M67 and NGC 188
- G. Michaud, O. Richard, J. Richer, D. VandenBerg
- Physics, Geology
- 24 February 2004
Evolutionary models taking into account radiative accelerations, thermal diffusion, and gravitational settling for 28 elements, including all those contributing to OPAL stellar opacities, have been…
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