Structure and evolution of low-mass stars
| dc.creator | Chabrier, Gilles | |
| dc.creator | Baraffe, Isabelle | |
| dc.date | 1997-04-14 | |
| dc.date.accessioned | 2026-07-07T10:31:44Z | |
| dc.date.available | 2026-07-07T10:31:44Z | |
| dc.description | We present extensive calculations of the structure and the evolution of low-massstars in the range 0.07-0.8 $\msol$, for metallicities $-2.0\le \mh \le 0.0$. These calculations are based on the most recent description of the microphysics characteristic of these dense and cool objects and on the lattest generation of grainless non-grey atmosphere models. We examine the evolution of the different mechanical and thermal properties of these objects as a function of mass and metallicity. We also demonstrate the inaccuracy of grey models and $T(τ)$ relationships under these conditions. We provide detailed tables of the mass-radius-luminosity-effective temperature relations for various ages and metallicities, aimed at calibrating existing or future observations of low-mass stars and massive brown dwarfs. We derive new hydrogen-burning minimum masses, within the afore-mentioned metallicity range. These minimum masses are found to be smaller than previous estimates, a direct consequence of non-grey effects. At last, we examine the evolution of the abundance of light elements, $Li, Be$ and $B$, as a function of age, mass and metallicity. | |
| dc.description | 24 pages, Latex file, uses l-aa.sty, accepted for publication in A&A | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9704118 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9704118 | |
| dc.identifier | Astron.Astrophys.327:1039-1053,1997 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178517 | |
| dc.subject | Astrophysics | |
| dc.title | Structure and evolution of low-mass stars | |
| dc.type | text |