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Title:
X-ray reflection spectra from ionized slabs
Authors:
Ross, R. R.; Fabian, A. C.; Young, A. J.
Affiliation:
AA(Physics Department, College of the Holy Cross, Worcester, MA 01610, USA ), AB(Institute of Astronomy, Madingley Road, Cambridge CB3 0HA), AC(Institute of Astronomy, Madingley Road, Cambridge CB3 0HA)
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 306, Issue 2, pp. 461-466. (MNRAS Homepage)
Publication Date:
06/1999
Origin:
MNRAS
MNRAS Keywords:
ACCRETION, ACCRETION DISCS, LINE: PROFILES, RADIATIVE TRANSFER, GALAXIES: ACTIVE, X-RAYS: GENERAL, X-RAYS: STARS
DOI:
10.1046/j.1365-8711.1999.02528.x
Bibliographic Code:
1999MNRAS.306..461R

Abstract

X-ray reflection spectra are an important component in the X-ray spectra of many active galactic nuclei and Galactic black hole candidates. It is likely that reflection takes place from highly ionized surfaces of the accretion disc in some cases. This can lead to strong Comptonization of the emergent iron, and other absorption and emission features. We present such reflection spectra here, computed in a self-consistent manner with the method described by Ross & Fabian. In particular we emphasize the range where the ionization parameter (the flux to density ratio) xi is around and above 10^4. Such spectra may be relevant to the observed spectral features found in black hole candidates such as Cygnus X-1 in the low/hard state.

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