The X-ray surface brightness distribution of clusters of galaxies in resonance lines
Abstract
The scattering of X-ray photons in the resonance lines of highly charged ions of heavy elements can lead to a significant distortion of the surface brightness distribution of galaxy clusters in these lines. If this effect is ignored in the interpretation of experimental data, heavy element abundances in intergalactic gas are systematically underestimated. A list is presented of the brightest lines situated near the resonance lines of heliumlike, hydrogenlike, and lithiumlike iron.
- Publication:
-
Pisma v Astronomicheskii Zhurnal
- Pub Date:
- January 1987
- Bibcode:
- 1987PAZh...13....7G
- Keywords:
-
- Brightness Distribution;
- Galactic Clusters;
- Resonance Lines;
- Spectral Energy Distribution;
- Surface Properties;
- X Ray Spectra;
- Abundance;
- Intergalactic Media;
- Iron;
- Optical Thickness;
- Spectral Line Width;
- Astrophysics