Comparison of theoretical radiation-driven winds from stars and discs
Abstract
We compare models of line-driven winds from accretion discs and single spherical stars. We look at the problem of scaling mass-loss rates and velocities of stellar and disc winds with model parameters. We find that stellar and disc winds driven by radiation, within the Castor-Abbott-Klein (CAK) framework, are very similar as far as mass-loss rates and velocities are concerned. Thus we can use analytic results for stellar winds to rescale, in a first-order approximation, numerical results for disc winds. We also show how the CAK stellar solutions change when we take into account effects of very low luminosities or line-driving force.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- April 1999
- DOI:
- 10.1046/j.1365-8711.1999.02408.x
- arXiv:
- arXiv:astro-ph/9901019
- Bibcode:
- 1999MNRAS.304..938P
- Keywords:
-
- ACCRETION;
- ACCRETION DISCS;
- HYDRODYNAMICS;
- METHODS: NUMERICAL;
- STARS: EARLY-TYPE;
- STARS: MASS-LOSS;
- GALAXIES: NUCLEI;
- Astrophysics
- E-Print:
- LaTeX, 13 pages, including three tables, 4 Postscript files, requires mn.sty, to appear in MNRAS