Supernova Nucleosynthesis in Low-Metallicity Populations
Abstract
The mass loss rate in low-metallicity stars is discussed, and the consequences of that rate for the fate of such stars are considered. It is shown that, if radiation pressure on dust is important in driving the mass loss from red giants, and if these stars do not dredge up large amounts of processed material during their evolution, then the total amount of mass lost by Population II stars with low metallicity is small. Consequently, the rate of supernovae in populations of low metallicity is much higher than in populations of solar abundances. This conclusion leads to the prediction that the supernova rate should be high in galaxies that have some intermediate mass stars and have metallicity less than about 0.1 of the solar value.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- February 1986
- DOI:
- 10.1086/163927
- Bibcode:
- 1986ApJ...301..624J
- Keywords:
-
- Nuclear Fusion;
- Stellar Composition;
- Stellar Evolution;
- Stellar Mass Ejection;
- Supernovae;
- Magellanic Clouds;
- Mass To Light Ratios;
- Metallicity;
- Milky Way Galaxy;
- Radiation Pressure;
- Red Giant Stars;
- Astrophysics;
- NUCLEOSYNTHESIS;
- STARS: MASS LOSS;
- STARS: POPULATION II;
- STARS: STELLAR STATISTICS;
- STARS: SUPERNOVAE