NASA NTRS · 19800006722
HEAO A-2 extragalactic results
Abstract
Results from the HEAO A-2 experiment concerning the extragalactic X-ray sky are discussed. All-sky maps of hard X-ray sources detected are presented reflecting the temporal variability of the sources that make up the extragalactic X-ray sky. Most of the identified extragalactic objects are not clusters of galaxies but isolated galaxies. Spectra for sources representing classes of active galz galaxies, BL Lacertae objects, and N galaxies are discussed in order of luminosity.
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Boldt, E. A.. 1979-11-01. HEAO A-2 extragalactic results. https://ntrs.nasa.gov/citations/19800006722
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