On the evidence for brown-dwarf secondary stars in cataclysmic variables

Details On the evidence for brown-dwarf secondary stars in cataclysmic variables On the evidence for brown-dwarf secondary stars in cataclysmic variables

2002-11-21

arxiv.org/abs/astro-ph/0211475v1

Mon.Not.Roy.Astron.Soc. 340 (2003) 264

Astronomy and Astrophysics

Astrophysics

6 pages, to appear in Monthly Notices, accepted

Scientific paper

10.1046/j.1365-8711.2003.06295.x

We present the K-band spectrum of the cataclysmic variable LL And, obtained using NIRSPEC on Keck-II. The spectrum shows no evidence for the absorption features observed by Howell & Ciardi (2001), which these authors used to claim a detection of a brown-dwarf secondary star in LL And. In light of our new data, we review the evidence for brown-dwarf secondary stars in this and other cataclysmic variables.

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