Roche tomography of the secondary stars in CVs

Details Roche tomography of the secondary stars in CVs Roche tomography of the secondary stars in CVs

2003-12-05

arxiv.org/abs/astro-ph/0312153v1

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figures. Accepted for publication in AN

Scientific paper

10.1002/asna.200310222

The secondary stars in cataclysmic variables (CVs) are key to our understanding of the origin, evolution and behaviour of this class of interacting binary. In seeking a fuller understanding of these objects, the challenge for observers is to obtain images of the secondary star. This goal can be achieved through Roche tomography, an indirect imaging technique that can be used to map the Roche-lobe-filling secondary. The review begins with a description of the basic principles that underpin Roche tomography, including methods for determining the system parameters. Finally, we conclude with a look at the main scientific highlights to date, including the first unambiguous detection of starspots on AE Aqr B, and consider the future prospects of this technique.

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