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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2015, Volume 102, Issue 6, Pages 372–379
DOI: https://doi.org/10.7868/S0370274X15180046
(Mi jetpl4729)
 

This article is cited in 14 scientific papers (total in 14 papers)

ASTROPHYSICS AND COSMOLOGY

Ground-level enhancement of solar cosmic rays on October 28, 2003: A mechanism of the generation of particles in the sun

G. F. Krymsky, V. G. Grigoryev, S. A. Starodubtsev, S. N. Taneev

Shafer Institute of Cosmophysical Research and Aeronomy, Siberian Branch, Russian Academy of Sciences, pr. Lenina 31, Yakutsk, 677980, Russia
References:
Abstract: In order to reveal mechanisms of the generation of solar cosmic rays, the spectrum of an event of the groundlevel enhancement on October 28, 2003 (the GLE65 event) in a maximally wide energy range has been analyzed using direct measurements of solar particle fluxes on the ACE, GOES, and WIND spacecrafts, as well as measurements on the worldwide network of neutron monitors. The spectrum in the relativistic energy range has been estimated within the previously proposed “effective-energy method”. In this method, each ground-based instrument is assigned the corresponding effective momentum (or energy) of primary particles at which the flux of solar cosmic rays is determined. The effective momentum is chosen such that errors in the determination of the solar-particle spectrum are minimized. It has been shown that the error of the estimate of the effective momentum within the proposed method for the determination of solar-particle fluxes is no more than 20 MeV/c. It has been found that the spectrum of solar cosmic rays from the event under study measured in the orbit of the Earth extends from $\approx$40 keV to $\approx$5 GeV and is described by a power law with an exponential cutoff at relativistic energies. A quasilinear theory of the regular acceleration of charged particles by shock waves in the lower corona of the Sun, which was developed at the Shafer Institute of Cosmophysical Research and Aeronomy, Siberian Branch, Russian Academy of Sciences, has been used to reveal the nature of solar cosmic rays. It has been shown that the acceleration of solar cosmic rays on the front of a coronal shock wave in the event under study ended at a distance of no longer than four radii of the Sun.
Received: 06.04.2015
Revised: 30.07.2015
English version:
Journal of Experimental and Theoretical Physics Letters, 2015, Volume 102, Issue 6, Pages 335–342
DOI: https://doi.org/10.1134/S0021364015180071
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: G. F. Krymsky, V. G. Grigoryev, S. A. Starodubtsev, S. N. Taneev, “Ground-level enhancement of solar cosmic rays on October 28, 2003: A mechanism of the generation of particles in the sun”, Pis'ma v Zh. Èksper. Teoret. Fiz., 102:6 (2015), 372–379; JETP Letters, 102:6 (2015), 335–342
Citation in format AMSBIB
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\paper Ground-level enhancement of solar cosmic rays on October~28,~2003: A~mechanism of the generation of particles in the sun
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\yr 2015
\vol 102
\issue 6
\pages 372--379
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\crossref{https://doi.org/10.7868/S0370274X15180046}
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  • This publication is cited in the following 14 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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