IY Hya - A new super Li-rich carbon star

Details IY Hya - A new super Li-rich carbon star IY Hya - A new super Li-rich carbon star

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...245l...1a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 245, no. 1, May 1991, p. L1-L4. Research supported by DGICYT and CSIC.

Astronomy and Astrophysics

Astrophysics

44

Carbon Stars, Hertzsprung-Russell Diagram, Lithium, Metallic Stars, Heavy Elements, Interstellar Matter, Stellar Structure

Scientific paper

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.

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