Observations of the structure of the diffuse X-ray emission from the Coma cluster

Details Observations of the structure of the diffuse X-ray emission from the Coma cluster Observations of the structure of the diffuse X-ray emission from the Coma cluster

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...231l..45j&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 231, July 15, 1979, p. L45-L50.

Astronomy and Astrophysics

Astronomy

16

Diffuse Radiation, Galactic Clusters, X Ray Astronomy, Astronomical Maps, Elliptical Galaxies, Interstellar Gas, Virgo Galactic Cluster, X Ray Sources

Scientific paper

The Coma cluster has been scanned by an array of large X-ray proportional counters equipped with 10 min x 4 deg (FWHM) collimators. The results suggest the peak surface brightness is not coincident with one of the two giant elliptical galaxies, NGC 4889 and 4874, and show the X-ray emission to be more extended in the 0.5-1.5-keV band than in the 1.5-5-keV band. No evidence is found for concentrated X-ray sources, like those in M87 and NGC 1275. The X-ray surface brightness contours have an ellipticity which resembles that of the galaxy mass distribution, and evidence is found for clumpiness in the intracluster gas.

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