Abstract
A method of reconstructing the declination of galactic cosmic ray anisotropy is described, and its results are presented. The method is based on analysis of delay distributions in symmetrically arranged detectors of an air shower array, and it represents a modification of the crossed telescopes method. It is shown that the declination of the true anisotropy vector is close to 60° (i.e., this vector lies approximately within the galactic plane). Because of this, the true degree of anisotropy of galactic cosmic rays is severalfold higher than the first harmonic of intensity in the sidereal time (the quantity measured directly), and it equals about 0.2%.
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Original Russian Text © D.D. Dzhappuev, V.A. Kozyarivsky, A.U. Kudzhaev, A.S. Lidvansky, T.I. Tulupova, 2010, published in Pis’ma v Astronomicheskiĭ Zhurnal, 2010, Vol. 36, No. 6, pp. 439–444.
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Dzhappuev, D.D., Kozyarivsky, V.A., Kudzhaev, A.U. et al. Reconstruction of the direction of the true anisotropy of galactic cosmic rays. Astron. Lett. 36, 416–421 (2010). https://doi.org/10.1134/S1063773710060046
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DOI: https://doi.org/10.1134/S1063773710060046