An enhanced stellar wind accretion model for binary X-ray transients

Details An enhanced stellar wind accretion model for binary X-ray transients An enhanced stellar wind accretion model for binary X-ray transients

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.232..199s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 232, May 1, 1988, p. 199-213.

Astronomy and Astrophysics

Astronomy

37

Neutron Stars, Stellar Mass Accretion, Stellar Models, Stellar Winds, X Ray Binaries, Bursts, Companion Stars, Eccentric Orbits, Mass Ratios, X Rays

Scientific paper

In this paper, using the parameters appropriate for the binary X-ray transient A0538-66, the dynamical effects of the neutron star on the stellar wind are examined using a modified version of the Castor, Abbott & Klein (1975) line-driven wind model. The inclusion of the neutron star result in significant departures from a simple spherically symmetric wind, and close to periastron, the mass-loss rate of the primary in the direction toward the neutron star can be enhanced by a factor of up to 200. This in turn can give rise to greatly enhanced X-ray outbursts at periastron, and large orbital variations in the X-ray flux, in line with the observations of A0538-66.

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