KBS 13 -- a Rare Reflection Effect sdB Binary with an M Dwarf Secondary

B. -Q. For; H. Edelmann; E. M. Green; H. Drechsel; S. Nesslinger; G. Fontaine

KBS 13 -- a Rare Reflection Effect sdB Binary with an M Dwarf Secondary

Astrophysics 2009-02-19 v1

Authors: B. -Q. For , H. Edelmann , E. M. Green , H. Drechsel , S. Nesslinger , G. Fontaine

Abstract

We report preliminary VRI differential photometric and spectroscopic results for KBS 13, a recently discovered non-eclipsing sdB+dM system. Radial velocity measurements indicate an orbital period of 0.2923 +/- 0.0004 days with a semi-amplitude velocity of 22.82 +/- 0.23 km s-1. This suggests the smallest secondary minimum mass yet found. We discuss the distribution of orbital periods and secondary minimum masses for other similar systems.

Keywords

cataclysmic variable orbital periods eclipsing binary stars

Cite

@article{arxiv.0809.4517,
  title  = {KBS 13 -- a Rare Reflection Effect sdB Binary with an M Dwarf Secondary},
  author = {B. -Q. For and H. Edelmann and E. M. Green and H. Drechsel and S. Nesslinger and G. Fontaine},
  journal= {arXiv preprint arXiv:0809.4517},
  year   = {2009}
}

Comments

4 pages, 3 figures, 1 table, ASP conference series

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