IY Hya : a new super Li-rich carbon star.
Abstract
The discovery is reported of a new lithium super-rich carbon star, IY Hya, and the Li abundance in three other carbon stars (T Sgr, WZ Cas and WX Cyg), previously known as super Li-rich stars is derived. All these stars show abundances in the range log N(Li) = 4.5 (i.e., 10 to 100 times higher than the present cosmic value). Two of them (WX Cyg and T Sgr) present variations in the Li feature when compared with previous studies.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- May 1991
- Bibcode:
- 1991A&A...245L...1A
- Keywords:
-
- Carbon Stars;
- Hertzsprung-Russell Diagram;
- Lithium;
- Metallic Stars;
- Heavy Elements;
- Interstellar Matter;
- Stellar Structure;
- Astrophysics