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X-ray variability in V444 Cygni — Evidence for colliding winds |
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| Authors: | M F Corcoran S N Shore J H Swank S R Heap G L Rawley A M T Pollock I R Stevens |
| Institution: | * USRA, Code 668, Goddard Space Flight Center, Greenbelt, MD 20771, USA ** USRA, Code 681, Goddard Space Flight Center, Greenbelt, MD 20771, USA *** USRA, Code 666, Goddard Space Flight Research Center, Greenbelt, MD 20771, USA † Applied Research Corp., 8201 Corporate Drive, Landover, MD 20785, USA ‡ Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK |
| 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 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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