The large-scale structure of X-ray clusters of galaxies. II

Details The large-scale structure of X-ray clusters of galaxies. II The large-scale structure of X-ray clusters of galaxies. II

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.191..887n&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 191, June 1980, p. 887-896. Research supported by the Radcliffe Trust.

Astronomy and Astrophysics

Astronomy

16

Cosmic Gases, Galactic Clusters, Galactic Structure, Heao 1, Spatial Distribution, X Ray Sources, Density Distribution, Hydrostatics, Mathematical Models, Polytropic Processes, Temperature Distribution

Scientific paper

Scanning data from the A-2 experiment on HEAO-1 are used to investigate the large-scale structure of the gas distribution within eight well observed X-ray clusters. A large (about 1 deg) halo of weak X-ray emission is found around the Perseus cluster and fitted to a hydrostatic polytropic model for the gas distribution. For the eight remaining clusters, constraints are placed on the range of such models which are consistent with the data. In particular the expected microwave dip is typically limited to Delta T/T approximately equal or less than 0.0001.

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