The X-ray surface brightness distribution of clusters of galaxies in resonance lines

Details The X-ray surface brightness distribution of clusters of galaxies in resonance lines The X-ray surface brightness distribution of clusters of galaxies in resonance lines

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pazh...13....7g&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 13, Jan. 1987, p. 7-18. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

4

Brightness Distribution, Galactic Clusters, Resonance Lines, Spectral Energy Distribution, Surface Properties, X Ray Spectra, Abundance, Intergalactic Media, Iron, Optical Thickness, Spectral Line Width

Scientific paper

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.

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