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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2015, Volume 102, Issue 11, Pages 807–810
DOI: https://doi.org/10.7868/S0370274X15230010 (Mi jetpl4798) 		 
This article is cited in 5 scientific papers (total in 5 papers)

ASTROPHYSICS AND COSMOLOGY

Forbush decrease in the intensity of cosmic rays in a toroidal model of a magnetic cloud

A. S. Petukhova, I. S. Petukhov, S. I. Petukhov

Shafer Institute of Cosmophysical Research and Aeronomy, Yakut Research Center, Siberian Branch, Russian Academy of Sciences, pr. Lenina 31, Yakutsk, 677980, Russia
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DOI: https://doi.org/10.7868/S0370274X15230010
Abstract: The time dynamics of the particle distribution function in a magnetic cloud with the shape of a toroidal segment with the characteristic (forceless) structure of a magnetic field has been calculated. The shape of the cloud at the subsequent propagation in the interplanetary space has been determined by the kinematic model. The magnetic field of the cloud is calculated using the freezing-in condition. A significant effect of regions connecting the magnetic cloud with the Sun on the propagation of particles in the region of perturbation has been revealed. The calculation of the particle density and anisotropy of the intensity demonstrates reasonable agreement with the measurements. The results indicate the decisive role of the characteristic structure of the magnetic field in the time dynamics of the Forbush decrease in the intensity of cosmic rays.
Funding agency Grant number
Russian Foundation for Basic Research 15-42-05085-р_восток_а
Ministry of Education and Science of the Russian Federation НШ 3269.2014.2
Received: 12.10.2015
English version:
Journal of Experimental and Theoretical Physics Letters, 2015, Volume 102, Issue 11, Pages 697–700
DOI: https://doi.org/10.1134/S0021364015230125
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. S. Petukhova, I. S. Petukhov, S. I. Petukhov, “Forbush decrease in the intensity of cosmic rays in a toroidal model of a magnetic cloud”, Pis'ma v Zh. Èksper. Teoret. Fiz., 102:11 (2015), 807–810; JETP Letters, 102:11 (2015), 697–700
Citation in format AMSBIB
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