Astron. Astrophys. Suppl. Ser. 136, 453-454

An abundance analysis of the single-lined spectroscopic binaries with barium stars-like orbital elements

II. The spectroscopic data

L. Zacs ¹ - O. Alksnis ¹ - F.A. Musaev ² - I.F. Bikmaev ³ - G.A. Galazutdinov ²

Send offprint request: L. Zacs

1 - Ventspils International Radio Astronomy Center, Akademijas laukums 1, LV-1050 Riga, Latvia
e-mail: zacs@latnet.lv
2 - Special Astrophysical Observatory, 357147 Nizhny Arkhyz, Russia
3 - Department of Astronomy, Kazan State University, 420008 Kazan, Russia

Received December 7, 1998; accepted January 21, 1999

Abstract:

High-resolution spectroscopic observations are presented for 19 single-lined binaries (giants and dwarfs) with orbital elements and mass functions similar to those of barium stars, two radial velocity non-variable barium stars, and two standards. All binary systems contain an unseen low-mass component, presumably, a white dwarf. The equivalent widths and oscillator strengths are given for all measured spectral lines.

Key words: binaries: spectroscopic -- stars: chemically peculiar -- stars: abundances