NASA NTRS · 19880061117
Einstein spectra of quasars
Abstract
The results of the initial stage of the CfA survey of quasar energy distributions are reviewed. Einstein imaging proportional counter spectra of 33 quasars have been studied by fitting a single power law slope and absorption by an equivalent column density of neutral hydrogen. Comparison with the higher energy HEAO-A2 data leads to a two-component model for the X-ray spectrum. The X-ray column density is systematically lower than the 21-cm measured Galactic column density along the same line of sight.
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Wilkes, Belinda J.. 1988-01-01. Einstein spectra of quasars. https://ntrs.nasa.gov/citations/19880061117
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