Wind suppression by X-rays in Cygnus X-3
نویسندگان
چکیده
Context. The radiatively driven wind of the primary star in wind-fed X-ray binaries can be suppressed by irradiation compact secondary star. This causes feedback between and luminosity Aims. We aim to estimate how velocity on face-on side donor depends spectral state high-mass binary Cygnus X-3. Methods. modeled supersonic part computing line force (force multiplier) with Castor, Abbott & Klein formalism XSTAR physics solving mass conservation momentum balance equations. computed locally considering radiation fields from both each state. solved equations at different orbital angles joining stars took effect clumping into account. Wind-induced accretion luminosities were estimated using Bondi-Hoyle-Lyttleton velocities compared them those obtained observations. Results. found that ionization potentials ions contributing most fall extreme-UV region (100–230 ?). If flux this is high, weak, consequently, low. a correlation observations for Cyg X-3 assuming moderate low For high clumping, disappears. method used here comoving frame they agree reasonably well other. Conclusions. show soft X-rays penetrate diminish consequently side. increases qualitatively similar manner as observed evolution volume filling factor few (2–3) solar masses.
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ژورنال
عنوان ژورنال: Astronomy and Astrophysics
سال: 2021
ISSN: ['0004-6361', '1432-0746']
DOI: https://doi.org/10.1051/0004-6361/202140620