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. Copyright © 2010 EPLA.
Kolmogorov analysis detecting radio and Fermi gamma-ray sources in cosmic microwave background maps / Gurzadyan, V. G.; Kashin, A. L.; Khachatryan, H. G.; Kocharyan, A. A.; Poghosian, E.; Vetrugno, D.; Yegorian, G.. - In: EUROPHYSICS LETTERS. - ISSN 0295-5075. - 91:1(2010), p. 19001. [10.1209/0295-5075/91/19001]
Kolmogorov analysis detecting radio and Fermi gamma-ray sources in cosmic microwave background maps
Vetrugno D.;
2010-01-01
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. Copyright © 2010 EPLA.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
