The composition of the subdwarf Groombridge 1830.
Abstract
A curve of growth analysis of the halodwarf Gmb 1830 relative to the Sun shows that the metals are in general about 10 times less abundant than in the Sun. Calcium and titanium are relatively overabundant and manganese is underabundant. Carbon may be slightly underabundant relative to the metals, and nitrogen certainly is by a factor of at least five.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- 1972
- DOI:
- 10.1093/mnras/156.3.349
- Bibcode:
- 1972MNRAS.156..349T