Abundances of Mercury in Sirius and VEGA

Details Abundances of Mercury in Sirius and VEGA Abundances of Mercury in Sirius and VEGA

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100..811s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, July 1988, p. 811-814.

Other

9

A Stars, Abundance, Mercury (Metal), Resonance Lines, Stellar Composition, Ultraviolet Spectroscopy, Peculiar Stars, Stellar Spectra

Scientific paper

The resonance line of Hg II at 1942 Å in Sirius and Vega is analyzed quantitatively based on high-resolution UV spectroscopic data. The spectrum synthesis technique is employed. The abundance of Hg in Sirius (log ɛ(Hg) = 2.5±0.5) is found to coincide with that found in the two normal late B-type stars ν Cap and π Cet. On the other hand, the obtained upper limit for Vega (log ɛ(Hg) ≤ 0.5) is lower than the solar-system abundance log ɛ(Hg) = 1.2.

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