X-ray and UV observations of V751 Cygni in an optical high state
X-ray and UV observations of V751 Cygni in an optical high state
Aims: The VY Scl system (anti-dwarf nova) V751 Cyg is examined following a claim of a super-soft spectrum in the optical low state. Methods: A serendipitous XMM-Newton X-ray observation and, 21 months later, Swift X-ray and UV observations, have provided the best such data on this source so far. These …