X-radiation from clusters of galaxies - Spectral evidence for a hot evolved gas

Details X-radiation from clusters of galaxies - Spectral evidence for a hot evolved gas X-radiation from clusters of galaxies - Spectral evidence for a hot evolved gas

Jan 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...211l..63s&link_type=abstract

Astrophysical Journal, vol. 211, Jan. 15, 1977, pt. 2, p. L63-L66.

Other

194

Galactic Clusters, Gas Evolution, High Temperature Gases, Satellite Observation, X Ray Spectra, Galactic Radiation, Iron, Oso-8, Plasma Radiation, Thermal Radiation, X Ray Sources

Scientific paper

OSO-8 observations of the X-ray flux in the range between 2 and 60 keV from the Virgo, Perseus, and Coma clusters provide strong evidence for the thermal origin of the radiation, including iron-line emission. The data are adequately described by emission from an isothermal plasma with an iron abundance in near agreement with cosmic levels. A power-law description is generally less acceptable and is ruled out in the case of Perseus. Implications of the origin of the cluster gas are discussed.

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