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

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

2010-02-10

arxiv.org/abs/1002.2155v4

Europhys. Lett. 91 (2010) 19001

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

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

Scientific paper

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.

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