Large-scale winds driven by flare-star mass loss.
Abstract
The effect of injecting substantial quantities of high-temperature material into the interstellar medium from flare-star activity is examined. Using models like those developed by Mathews and Baker for calculating supernovae-driven elliptical galaxy winds, we consider the effects of flare-star mass loss in elliptical galaxies and globular clusters. It is found that, even in the absence of supernovae, and with a substantially smaller flare-star mass input than may be plausibly expected, steady outflowing winds will develop in these objects. Such winds may explain the observed absence of substantial quantities of interstellar material in globular clusters and elliptical galaxies. Assuming the presence of elliptical galaxy winds in clusters of galaxies, we consider the effects of such winds on intergalactic medium dynamics. We find that a hot intergalactic medium is to be expected and that instabilities resulting in collapse in the center of clusters of galaxies may occur.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1977
- DOI:
- 10.1086/155736
- Bibcode:
- 1977ApJ...218..792C
- Keywords:
-
- Dwarf Stars;
- Elliptical Galaxies;
- Globular Clusters;
- Interstellar Matter;
- Stellar Mass Ejection;
- Stellar Winds;
- Bursts;
- Gravitational Collapse;
- Red Giant Stars;
- Stellar Evolution;
- Supernovae;
- Astrophysics