Infrared spectroscopy of cataclysmic variables

Details Infrared spectroscopy of cataclysmic variables Infrared spectroscopy of cataclysmic variables

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.275...89d&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 275, Issue 1, pp. 89-99.

Astronomy and Astrophysics

Astronomy

37

Accretion, Accretion Discs, Binaries: Spectroscopic, Stars: Fundamental Parameters, Stars: Individual: V471 Tau, Novae, Cataclysmic Variables, Infrared: Stars

Scientific paper

We present the results of an exploratory spectroscopic survey of cataclysmic variables in the infrared part of the spectrum (1.0-2.5 μm). The spectra show strong Paschen, Bracket and HeI emission lines from the accretion disc, and CO bands and neutral metal lines from the secondary star. We use these features to determine the spectral types of the secondary stars, and find that they are in broad agreement with optical estimates and are later than expected for their periods. In addition, we report the possible detection of enhanced ^13CO in the detached system V471 Tau, which if confirmed provides firm support for the theory of common-envelope evolution.

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