The distribution of iron in the Perseus cluster

Details The distribution of iron in the Perseus cluster The distribution of iron in the Perseus cluster

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.347..450p&link_type=abstract

Nature (ISSN 0028-0836), vol. 347, Oct. 4, 1990, p. 450-452. Research supported by SERC.

Astronomy and Astrophysics

Astronomy

36

Galactic Clusters, Iron, Metallicity, Spaceborne Telescopes, Spacelab Payloads, X Ray Spectra, Hubble Constant, Line Spectra, X Ray Astronomy

Scientific paper

Hard X-ray spectral imaging observations of the Perseus cluster obtained with the coded-mask X-ray telescope on Spacelab 2 are reported which reveal an iron abundance gradient in the intracluster medium (ICM). Most of the ICM seems to be primordial, with the iron-rich gas confined largely to the cluster core where it was probably deposited by stripping of cluster galaxies. The total mass of iron required to explain the X-ary spectra is substantially smaller than has been assumed on the basis of a chemically homogeneous ICM.

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