An analysis of the manganese star HD 78316 (Kappa Cnc)

Details An analysis of the manganese star HD 78316 (Kappa Cnc) An analysis of the manganese star HD 78316 (Kappa Cnc)

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...176...75z&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 176, no. 1, April 1987, p. 75-82. Research supported by the Alexander von Humb

Astronomy and Astrophysics

Astrophysics

7

A Stars, Manganese, Metallic Stars, Stellar Atmospheres, Atmospheric Composition, Atmospheric Models, Oscillator Strengths, Peculiar Stars

Scientific paper

The authors have analyzed the spectrum of the Ap-star HD 78316 (HR 3623) with the help of fully line-blanketed model atmospheres. The abundances of 15 elements of the atmosphere were derived from tracings of high-resolution spectra (DAO plates, 2.41 Å mm-1), covering the wavelength range from 3840 Å to 4620 Å. Deriving the abundances the authors used the synthesis method as well as the curve of growth method. Some parts of the observed spectrum were fitted with the synthesized spectrum including a rotational speed of 6 km s-1 and an instrumental profile of 0.12 Å. It was not necessary to introduce a microturbulent velocity of more than 1 km s-1.

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