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THE AUTO-CORRELATION PROPERTIES OF FLUCTUATIONS IN THE COSMIC X-RAY-BACKGROUND

Authors :
M. Persic
G. de Zotti
E. A. Boldt
F. E. Marshall
L. Danese
A. Franceschini
G. G. C. Palumbo
Publication Year :
1989

Abstract

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.

Subjects

Subjects :
Physics
Active galactic nucleus
Astrophysics::High Energy Astrophysical Phenomena
Autocorrelation
X-ray background
Astronomy
Astronomy and Astrophysics
Cosmic ray
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Galaxy groups and clusters
Space and Planetary Science
Surface brightness
Astrophysics::Galaxy Astrophysics
Galaxy cluster
Background radiation

Details

Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....7e6cfd0a841bcd7fed6aaae29e7b0eec

Tools

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