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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2003, Volume 78, Issue 11, Pages 1207–1211
(Mi jetpl2679)
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This article is cited in 7 scientific papers (total in 7 papers)
GRAVITY, ASTROPHYSICS
Search for anisotropy in arrival directions of ultrahigh-energy cosmic rays by using the marr wavelet on the equatorial sphere
A. A. Ivanov, A. D. Krasil'nikov, M. I. Pravdin Shafer Institute of Cosmophysical Research and Aeronomy, Siberian Branch, Russian Academy of Sciences
Abstract:
The arrival direction distribution of cosmic rays for energies $E>10^{18}$ eV detected at the Yakutsk EAS array is analyzed using the Marr wavelet. Deviation from the isotropic distribution of 361 showers above $10^{19}$ eV is found at a significance level of 0.007, which corroborates previous evidence of the cosmic ray anisotropy in this energy range. In contrast to the previous methods, the wavelet analysis makes it possible to localize both a celestial-sphere domain containing a supposed source of excess cosmic ray flux and the scale parameter of the two-dimensional wavelet.
Received: 20.10.2003
Citation:
A. A. Ivanov, A. D. Krasil'nikov, M. I. Pravdin, “Search for anisotropy in arrival directions of ultrahigh-energy cosmic rays by using the marr wavelet on the equatorial sphere”, Pis'ma v Zh. Èksper. Teoret. Fiz., 78:11 (2003), 1207–1211; JETP Letters, 78:11 (2003), 695–699
Linking options:
https://www.mathnet.ru/eng/jetpl2679 https://www.mathnet.ru/eng/jetpl/v78/i11/p1207
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Abstract page: | 158 | Full-text PDF : | 65 | References: | 44 |
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