In situ synthesis of ^6^Li by galactic cosmic rays in halo stars.
Abstract
An evaluation is made of the proposal that galactic cosmic rays decelerated in envelopes of halo stars provide for nucleosynthesis of ^6^Li and other light nuclides at observable levels. It is argued that while this mode of nucleosynthesis is unimportant for Be and B, it may just possibly provide for observable amounts of ^6^Li in extremely metal-poor stars near the main sequence turnoff.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- September 1995
- Bibcode:
- 1995A&A...301..478L
- Keywords:
-
- STARS: ABUNDANCES;
- POPULATION II;
- COSMIC RAYS;
- NUCLEOSYNTHESIS;
- COSMOLOGY: EARLY UNIVERSE