Kolmogorov analysis detecting radio and Fermi gamma-ray sources in cosmic microwave background maps

Abstract

The Kolmogorov stochasticity parameter is shown to act as a tool to detect point sources in the cosmic microwave background (CMB) radiation temperature maps. Kolmogorov CMB map constructed for the WMAP's 7-year datasets reveals tiny structures which in part coincide with point radio and Fermi/LAT gamma-ray sources. In the first application of this method, we identified several sources not present in the then available 0FGL Fermi catalog. Subsequently they were confirmed in the more recent and more complete 1FGL catalog, thus strengthening the evidence for the power of this methodology.

4 pages, 3 figs, 1 Table; to match the published version

References in corpus (7)

• Fermi Large Area Telescope First Source Catalog
• Fermi Large Area Telescope Bright Gamma-ray Source List
• Cross-correlating WMAP5 with 1.5 million LRGs: a new test for the ISW effect
• Kolmogorov cosmic microwave background sky
• Kolmogorov stochasticity parameter measuring the randomness in Cosmic Microwave Background
• High-frequency radio polarization measurements of WMAP point sources
• Large Scale Plane-Mirroring in the Cosmic Microwave Background WMAP5 Maps

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• Recent developments in astrophysical and cosmological exploitation of microwave surveys
• A weakly random Universe?
• Detection of X-ray galaxy clusters based on the Kolmogorov method
• Degree of randomness: numerical experiments for astrophysical signals
• Kolmogorov analysis of JWST deep survey galaxies
• On the detection of point sources in Planck LFI 70 GHz CMB maps based on cleaned K-map