The double-lined spectroscopic binary alpha Andromedae: orbital elements and elemental abundances

Details The double-lined spectroscopic binary alpha Andromedae: orbital elements and elemental abundances The double-lined spectroscopic binary alpha Andromedae: orbital elements and elemental abundances

1998-05-15

arxiv.org/abs/astro-ph/9805205v1

Astronomy and Astrophysics

Astrophysics

3 pages, 1 figure, to appear in: Proc. of the 26th workshop of the European Working Group on CP stars, eds. P. North, A. Schne

Scientific paper

We performed a spectroscopic study of the SB2 Mercury-Manganese star alpha
And. Our measurements of the secondary's radial velocities result in improved
orbital elements. The secondary shows abundances typical of the metallic-line
stars: a Ca deficiency, small overabundances of the iron-peak elements, and 1.0
dex overabundances of Sr and Ba.

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