Relative abundances in metal-poor stars. I. the aluminum-to-iron ratio
Journal Article
·
· Astrophys. J.; (United States)
Motivated by specific predictions of explosive nucleosynthesis that indicate increasing overdeficiencies of aluminum at low overall metal abundances and armed with new high-quality, high-resolution echell-Kron spectra, we have determined the aluminum-to-iron ratio in nearly a dozen high-velocity metal-poor dwarfs and subgiants with metal abundances 1/4 to 1/100 solar. We find that the relative abundance of aluminum does decrease in going from the stars of moderate metal deficiency to the most extremely metal-poor ones, a result which strongly supports explosive nucleosynthesis as the mechanism for heavy-element production in these stars.
- Research Organization:
- Lockheed Palo Alto Research Laboratory
- OSTI ID:
- 6735404
- Journal Information:
- Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 222:2; ISSN ASJOA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Relative abundances in metal-poor stars. II. The carbon-to-iron ratio
Relative abundances in metal-poor stars. III. Sodium through copper
Oxygen abundance in metal-poor stars
Journal Article
·
Tue Oct 31 23:00:00 EST 1978
· Astrophys. J.; (United States)
·
OSTI ID:6353993
Relative abundances in metal-poor stars. III. Sodium through copper
Journal Article
·
Sat Mar 14 23:00:00 EST 1981
· Astrophys. J.; (United States)
·
OSTI ID:6316507
Oxygen abundance in metal-poor stars
Journal Article
·
Fri Dec 14 23:00:00 EST 1979
· Astrophys. J.; (United States)
·
OSTI ID:5556455