Abstract
We present the results of spectral analyses of three bright, single lined subdwarf B (sdB) stars (UVO 1735+22, PG 0133+114, and PG 0001+275), recently discovered as radial velocity variable. Their velocity curves are measured from high resolution (R ≈ 30000) optical spectra obtained at the DSAZ (Calar Alto, Spain) using the FOCES spectrograph at the 2.2m telescope. The orbital periods and amplitudes of the binary systems are determined and the masses of the unseen companions are constrained. The radial velocity corrected, coadded spectra are analysed for the surface element abundances. All stars are slow rotators and show similar abundance pattern as other bona fide sdB stars.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Edelmann H., Heber U., Napiwotzki R., 2001, Astron. Nachr. 322, 401
Napiwotzki R., Edelmann H., Heber U., Karl C., Drechsel H., Pauli E.-M., Christlieb N., 2001 A&A 378, L17
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2003 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Edelmann, H., Heber, U., Karl, C. (2003). Radial Velocity Variations and Metal Abundances of Three Bright SDB Stars. In: de Martino, D., Silvotti, R., Solheim, JE., Kalytis, R. (eds) White Dwarfs. NATO Science Series, vol 105. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0215-8_23
Download citation
DOI: https://doi.org/10.1007/978-94-010-0215-8_23
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-1364-5
Online ISBN: 978-94-010-0215-8
eBook Packages: Springer Book Archive