EF Eri: Its white dwarf primary and ``L Dwarf'' secondary and 2MASS data for other CVs

Details EF Eri: Its white dwarf primary and ``L Dwarf'' secondary and 2MASS data for other CVs EF Eri: Its white dwarf primary and ``L Dwarf'' secondary and 2MASS data for other CVs

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aspc..261...57h&link_type=abstract

The Physics of Cataclysmic Variables and Related Objects, ASP Conference Proceedings, Vol. 261. Edited by B. T. Gänsicke, K. Beu

Physics

1

Scientific paper

We obtained a blue spectrum, and optical photometry of the polar EF Eri in 2001 March. We have combined these data with 2MASS photometry to examine the nature of its primary and secondary stars. The mass transfer rate in EF Eri is currently so low, that the white dwarf primary is clearly visible down to λ ~4300Å. The 2MASS data suggest that the secondary star is probably an L4V. 2MASS has detected the very late-type companions in a large number of CV systems.

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