CA II H and K lines in A type stellar spectra

Details CA II H and K lines in A type stellar spectra CA II H and K lines in A type stellar spectra

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...239..598p&link_type=abstract

Astrophysical Journal, Part 1, vol. 239, July 15, 1980, p. 598-606.

Astronomy and Astrophysics

Astrophysics

1

A Stars, Line Spectra, Metallic Stars, Stellar Atmospheres, Stellar Spectra, Balmer Series, Calcium, H Lines, K Lines

Scientific paper

High-quality, high-resolution photoelectric and photographic spectra of Alpha CMa and Gamma Gem are used to obtain the profiles of the Ca II H and K lines. These profiles are analyzed using theoretical spectra of model atmospheres to determine the calcium abundance and to study the structure of the stellar atmosphere. Calcium is found to be underabundant in Sirius.

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