Energy Spectrum and Anisotropy of Cosmic Rays with E{sub 0} {>=} 10{sup 17} eV from Yakutsk EAS Array Data

Journal Article · Fri Jul 01 04:00:00 EDT 2005 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/1.2010665· OSTI ID:20702541

Glushkov, A V; Pravdin, M I ^[1]

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1. Shafer Institute of Space Physics and Aeronomy, Siberian Branch, Russian Academy of Sciences, Yakutsk, 677891 (Russian Federation)

Data from the Yakutsk extensive air shower array for the period 1974-2004 are used to analyze the energy spectrum and anisotropy of primary cosmic rays (PCRs) with energy E{sub 0} {>=} 10{sup 17} eV. The spectra from different regions of the sky are shown to differ in shape. Enhanced and reduced particle fluxes come from the disks of the Galaxy and the Supergalaxy (the Local Supercluster of galaxies) at E{sub 0} {>=} 5 x 10{sup 18} eV and E{sub 0} {<=} (2-3) x 10{sup 18} eV, respectively. This is interpreted as a manifestation of the possible interaction between extragalactic PCRs and the matter of these spatial structures.

• OSTI ID: 20702541
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 1 Vol. 101; ISSN JTPHES; ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
ENERGY SPECTRA
EXTENSIVE AIR SHOWERS
GALAXIES
GALAXY CLUSTERS
INTERACTIONS
PEV RANGE
PRIMARY COSMIC RADIATION