V751 Cyg and V Sge as transient supersoft X-ray sources

Abstract

I review the observational evidence for luminous, soft X-ray emission during optical low-states in the two cataclysmic variables V751 Cyg and V Sge, and discuss the possible link to the canonical supersoft X-ray sources.Comment: 6 pages with newarcrc.sty; inv. talk given at the 60th birthday Symp. in honour of Brian Warner, Oxford, April 1999, to appear in New Astronomy Reviews (Elsevier), eds. P. Charles, A. King, D. O'Donoghue; also available from http://www.aip.de/~jcg/publis.htm