NASA NTRS · 19950049945
X-ray variability in V444 Cygni-Evidence for colliding winds
Abstract
Phase-resolved ROSAT observations of the soft X-ray flux from V444 Cygni confirm the orbital dependence of the flux suggested by analysis of imaging proportional counter (IPC) observations. The X-ray behavior suggests that a region of X-ray emitting gas exists between the 2 stars, probably produced by a collision between the WR and O star winds.
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Corcoran, M. F., Shore, S. N., Swank, J. H., Heap, S. R., Rawley, G. L., Pollock, A. M. T., Stevens, I. R.. 1993-12-01. X-ray variability in V444 Cygni-Evidence for colliding winds. https://ntrs.nasa.gov/citations/19950049945
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