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ABUNDANCES OF MERCURY IN SIRIUS AND VEGA
KOZO SADAKANE, JUN JUGAKU and MASAHIDE TAKADA-HIDAI
Publications of the Astronomical Society of the Pacific
Vol. 100, No. 629 (July 1988), pp. 811-814
Published by: Astronomical Society of the Pacific
Stable URL: http://www.jstor.org/stable/40679169
Page Count: 4
You can always find the topics here!Topics: Stellar spectral lines, Resonance lines, Stellar spectra, B stars, Velocity, Spectroscopy, Line spectra, Astronomical research, Wavelengths, Quantitative analysis
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The resonance line of Hg II at 1942 Å in Sirius and Vega is analyzed quantitatively based on high-resolution UV spectroscopie data. The spectrum synthesis technique is employed. The abundance of Hg in Sirius (log e (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 e (Hg) < 0.5) is lower than the solar-system abundance log e (Hg) = 1.2.
Publications of the Astronomical Society of the Pacific © 1988 The University of Chicago Press