The Library
SDSS121258.25-012310.1 : a new eclipsing post common envelope binary
Tools
Tools
Tools
Gomez-Moran, A. Nebot, Schwope, A. D. (Axel D.), Schreiber, Matthias R. and Gänsicke, B. T. (Boris T.). (2009) SDSS121258.25-012310.1 : a new eclipsing post common envelope binary. Journal of Physics: Conference Series, Vol.172 (No.1). 012027. ISSN 1742-6596
Full text not available from this repository.
Official URL: http://dx.doi.org/10.1088/1742-6596/172/1/012027
Abstract
From optical photometry we show that SDSS121258.25-012310.1 is a new eclipsing post common envelope binary with an orbital period of ~ 8.06 hours and eclipse length of 23 minutes. From spectroscopic follow up observations we measured the semi-amplitude of the radial velocity for the secondary star, K2 = 181 ± 3 kms-1. By fitting the optical SDSS spectrum we constrained the stellar parameters. The white dwarf temperature is 17700 ± 300 K, its surface gravity log g = 7.53 ± 0.2, the spectral type of the secondary star is M4 ± 1 and the distance to the system d = 230 ± 20 parsec. Masses are estimated to be in the range 0.25 − 0.38 M for the red dwarf and 0.33 − 0.48 M for the white dwarf. We finally discuss the evolutionary state of the system.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Faculty of Science > Physics |
| Library of Congress Subject Headings (LCSH): | Eclipsing binaries |
| Journal or Publication Title: | Journal of Physics: Conference Series |
| Publisher: | Institute of Physics Publishing Ltd. |
| ISSN: | 1742-6596 |
| Date: | July 2009 |
| Volume: | Vol.172 |
| Number: | No.1 |
| Page Range: | 012027 |
| Identification Number: | 10.1088/1742-6596/172/1/012027 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| URI: | http://wrap.warwick.ac.uk/id/eprint/40195 |
Actions (login required)
 |
View Item |
