L. Schmidtobreick, P. Rodriguez-Gil, K. S. Long, B. T. Gaensicke, C. Tappert, M. A. P. Torres
BB Dor was observed during its low state state in 2009. Signatures of both
binary components are revealed in the average optical spectrum; no signature of
accretion is observed. Narrow emission lines of Halpha, HeI and Na-D, as well
as TiO absorption troughs trace the motion of the irradiated secondary star. We
detect two additional components in the Halpha emission line that share many
characteristics of similar "satellite" lines observed in the low state of
magnetic cataclysmic variables of AM Her type. It is the first time such
emission components are detected for an SW Sex star.
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http://arxiv.org/abs/1202.0513
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