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SW Sex stars, old novae, and the evolution of cataclysmic variables

2014/08/22 by Linda Schmidtobreick, Schmidtobreick, Linda, Claus Tappert +1
Physics and Astronomy · #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #astro-ph.SR

paper · pdf · doi:10.48550/arxiv.1408.5372

4 pages. conference: The Golden Age of Cataclysmic Variables and Related Objects II, Palermo 2013. Accepted for publication in Acta Polytechnica

arxiv created 2014/08/22 · arxiv updated 2014/08/25

Abstract

The population of cataclysmic variables with orbital periods right above the period gap are dominated by systems with extremely high mass transfer rates, the so-called SW Sextantis stars. On the other hand, some old novae in this period range which are expected to show high mass transfer rate instead show photometric and/or spectroscopic resemblance to low mass transfer systems like dwarf novae. We discuss them as candidates for so-called hibernating systems, CVs that changed their mass transfer behaviour due to a previously experienced nova outburst. This paper is designed to provide input for further research and discussion as the results as such are still very preliminary.

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