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

(2) Crimean Astrophysical Observatory; (3) The Citadel; Charleston; Moscow; S.J. Adelman (3) ((1) Institute of Astronomy; T. Ryabchikova (1); USA); V. Malanushenko (2)

arxiv: astro-ph/9805205 · v1 · submitted 1998-05-15 · 🌌 astro-ph

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

T. Ryabchikova (1) , V. Malanushenko (2) , S.J. Adelman (3) ((1) Institute of Astronomy , Moscow , (2) Crimean Astrophysical Observatory , (3) The Citadel , Charleston , USA) This is my paper

classification 🌌 astro-ph

keywords elementsabundancesalphaorbitaloverabundancessecondaryspectroscopicandromedae

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

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