HEAO-A2 observations of the X-ray spectra of the Centaurus and A1060 clusters of galaxies

Details HEAO-A2 observations of the X-ray spectra of the Centaurus and A1060 clusters of galaxies HEAO-A2 observations of the X-ray spectra of the Centaurus and A1060 clusters of galaxies

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979stin...7934131m&link_type=abstract

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Centaurus Constellation, Galactic Clusters, Stellar Spectra, X Ray Analysis, X Ray Sources, X Ray Spectra, Astronomical Models, Compton Effect, Heao 1, Iron, Mathematical Models, Stellar Luminosity, X Ray Spectroscopy

Scientific paper

The X-ray spectral observations of two low luminosity clusters of galaxies, Centaurus and A1060, are presented. An emission feature of the Centaurus cluster at 7.9 keV is detected at about one third of the strength of the 6.7 keV line. This higher energy line represents Kbeta emission from highly ionized iron. An isothermal model with an Fe emission line is discussed and it is shown that the model cannot fit the data of the Centaurus or the A1060 clusters. The implications of the two component nature of the continuum on the Fe abundance and the X-ray surface brightness distribution are discussed.

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