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

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

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Astrophysics

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http://salesiana.dossiersoluciones.com/handle/123456789/220354

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0809.4517
 http://arxiv.org/abs/0809.4517

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arXiv