White Dwarf Masses and Accretion Rates of Recurrent Novae: an X-ray Perspective

Koji Mukai, Jennifer L. Sokoloski, Thomas Nelson, Gerardo J. M. Luna
2011 Proceedings of the International Astronomical Union  
We present recent results of quiescent X-ray observations of recurrent novae (RNe) and related objects. Several RNe are luminous hard X-ray sources in quiescence, consistent with accretion onto a near Chandrasekhar mass white dwarf. Detection of similar hard X-ray emissions in old novae and other cataclysmic variables may lead to identification of additional RNe candidates. On the other hand, other RNe are found to be comparatively hard X-ray faint. We present several scenarios that may explain this dichotomy, which should be explored further.
doi:10.1017/s1743921312014962 fatcat:kqek6pqycnfpdhbft4bdb6rmwy