The chemical composition of extremely metal-poor and carbon-rich star HD 112869
Abstract
The preliminary results of abundance analysis are presented for extremely metal-poor carbon star HD 112869 = TT CVn = CGCS 3319. The radial velocity was found to be -137.7 km s-1. Our LTE abundance analysis supports an extremely low metallicity for TT CVn, [Fe/H] = -3.2, and a significant overabundance of carbon and neutron-capture elements. The 12C/13C ratio in the atmosphere of HD 112869 is high.
- Publication:
-
From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution
- Pub Date:
- 2005
- DOI:
- 10.1017/S1743921305005831
- Bibcode:
- 2005IAUS..228..281Z