Journal Article

Monte Carlo simulations of the broad-band X-ray continuum of SS433

Yu. M. Krivosheyev, G. S. Bisnovatyi-Kogan, A. M. Cherepashchuk and K. A. Postnov

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 394, issue 3, pages 1674-1684
Published in print April 2009 | ISSN: 0035-8711
Published online April 2009 | e-ISSN: 1365-2966 | DOI:
Monte Carlo simulations of the broad-band X-ray continuum of SS433

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We develop a Monte Carlo technique based on L.B. Lucy's indivisible photon packets method to calculate X-ray continuum spectra of Comptonized thermal plasma in arbitrary geometry and apply it to describe the broad-band X-ray continuum of the galactic superaccreting microquasar SS433 observed by INTEGRAL. A physical model of the X-ray emitting region is proposed that includes thermal emission from the accretion disc, jets and hot corona where the photons of different origin are Comptonized. From comparison with INTEGRAL observations, we estimate physical parameters of the complex X-ray emitting region in SS433 and present model spectra for different viewing angles of the object.

Keywords: scattering; methods: numerical; X-rays: individual: SS433

Journal Article.  8523 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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