X-ray variability in V444 Cygni-Evidence for colliding winds

Details X-ray variability in V444 Cygni-Evidence for colliding winds X-ray variability in V444 Cygni-Evidence for colliding winds

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993adspr..13..295c&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 13, no. 12, p. (12)295-(12)297

Astronomy and Astrophysics

Astronomy

2

Binary Stars, Flux Density, Interstellar Gas, Stellar Orbits, Stellar Winds, Variability, X Ray Astronomy, O Stars, Proportional Counters, Rosat Mission, Wolf-Rayet Stars

Scientific paper

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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