NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-07-19 T05:45:35 PDT
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For refcode 1979MNRAS.189..329M:
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NED Abstract

Copyright by Royal Astronomical Society. 1979MNRAS.189..329M The X-ray spectra of clusters of galaxies and their relationship to other cluster properties Mitchell, R. J.; Dickens, R. J.; Burnell, S. J. B.; Culhane, J. L. Abstract. Observations with the MSSL proportional counter spectrometer on the Ariel 5 satellite of the X-ray spectra of 20 candidate clusters of galaxies are reported. The data are compared with the results from the OSO 8 satellite, and the combined sample of some 30 cluster X-ray spectra are analyzed. We find generally larger values of L_x_ than do Uhuru or the SSI which, because of the larger field of view, may indicate significant amounts of hot gas away from the cluster centers. The validity of all X-ray cluster identifications has been examined, and sources have been classified according to certainty of identification. The incidence of X-ray line emission from the clusters has been investigated, and temperatures, kT_x_,have been derived on the basis of an isothermal model. Relationships between X-ray, optical, and radio properties of the clusters have been studied. The more massive, centrally condensed clusters generally contain higher-temperature gas and have a greater luminosity than the less massive, more irregular clusters. Keywords: GALACTIC CLUSTERS, SATELLITE OBSERVATION, X RAY ASTRONOMY, X RAY SPECTRA, ASTRONOMICAL SPECTROSCOPY, BREMSSTRAHLUNG, DATA PROCESSING, EMISSION SPECTRA, GRAPHS (CHARTS), IRON, LINE SPECTRA, RADIO SOURCES (ASTRONOMY), STELLAR LUMINOSITY
Retrieve 32 NED objects in this reference.
Please click here for ADS abstract

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