The autocorrelation properties of fluctuations in the cosmic X-ray background

Details The autocorrelation properties of fluctuations in the cosmic X-ray background The autocorrelation properties of fluctuations in the cosmic X-ray background

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...336l..47p&link_type=abstract

Astrophysical Journal (ISSN 0004-637X), vol. 336, Jan. 15, 1989, p. L47-L50. Research supported by MPI and CNR.

Statistics

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24

Autocorrelation, Background Radiation, Cosmic Rays, Galactic Clusters, X Rays, Active Galactic Nuclei, Brightness Distribution, Computational Astrophysics, Heao 1, Hubble Constant

Scientific paper

The HEAO 1 A-2 all-sky survey data have been analyzed to investigate the autocorrelation function of the surface brightness fluctuations of the extragalactic 2-10 keV X-ray background on angular scales ranging from 3 to 27 deg. The derived upper limits are compatible with optical estimates of the spatial correlation function of Abell's clusters and set interesting constraints on possible AGN clustering.

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