Geometrical and chemical dependence of K-shell X-ray features

Details Geometrical and chemical dependence of K-shell X-ray features Geometrical and chemical dependence of K-shell X-ray features

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.289..175m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 289, Issue 1, pp. 175-184.

Astronomy and Astrophysics

Astronomy

72

Line: Formation, Line: Profiles, Radiative Transfer, Galaxies: Active, X-Rays: Galaxies, X-Rays: Stars

Scientific paper

We review and discuss the chemical and geometrical dependence of iron K features (emission line and absorption edge), and of fluorescent lines from other elements, emitted by neutral, externally X-ray-illuminated matter. Our aim is to provide simple, practical tools which could be useful for observers in order to estimate parameters easily from measured quantities. The dependence of the iron fluorescent line on the iron and oxygen abundances is explored in detail, and simple analytical formulae are given for both the Morrison & McCammon and Anders & Grevesse abundances. In the latter case, the variation of the depth of the iron K edge with the iron abundance is also shown. Fluorescent line intensities from other elements, from oxygen to nickel, are also given as a function of the inclination angle and chemical abundances. The effects of the presence of a hot corona above the cold matter on the iron line and edge are discussed. We also discuss the spectral signature of resonant transitions occurring in the hot corona itself. The present calculations are relevant to AGN and Galactic X-ray binaries, in particular black hole candidates and cataclysmic variables.

Affiliated with

Also associated with

No associations

Rating

Geometrical and chemical dependence of K-shell X-ray features does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Geometrical and chemical dependence of K-shell X-ray features, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geometrical and chemical dependence of K-shell X-ray features will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1415200