Galactic cosmic ray anisotropy modelling

Dmitriy Peregoudov; Anatoly Soloviev; Igor Yashin; Victor Shutenko

doi:10.12737/stp-61202003

UDC 52

GALACTIC COSMIC RAY ANISOTROPY MODELLING Galactic cosmic ray anisotropy modelling

АА Аа

Published in Solar-Terrestrial Physics · Volume 6, Issue 1 · Pages 29–34 · Rubric: Results of current research

DOI: https://doi.org/10.12737/stp-61202003

Received: 26.03.2020 Accepted: 16.03.2026 Language of publication: ENG

Authors

Dmitriy Peregoudov

Anatoly Soloviev

ORCID Scopus SPIN

Igor Yashin

Victor Shutenko

Dmitriy Peregoudov

Academic degree: candidate of physical and mathematical sciences

Geophysical Center of RAS Russian Federation · Moscow

Anatoly Soloviev

Academic degree: doctor of physical and mathematical sciences

Science rang: professor author.academy_titles.32 ; corresponding member author.academy_titles.32

Geophysical Center RAS Director · Russian Federation · Moscow

Schmidt Institute of Physics of the Earth, RAS Russian Federation · Moscow

ORCID Scopus SPIN

Igor Yashin

Academic degree: doctor of physical and mathematical sciences

Science rang: professor

National Research Nuclear University MEPhI Russian Federation · Moscow

Victor Shutenko

National Research Nuclear University MEPhI Russian Federation · Moscow

ABSTRACT

We calculate the angular distribution of cosmic rays at a given point of the heliosphere under the assumption that the incoming flux from outer space is isotropic. The static magnetic field is shown to cause no anisotropy provided that the observation point is situated out of the trapped particle area. We consider a coronal ejection model in the form of a static cylinder with an axial homogeneous magnetic field inside. We calculate angular distribution samples in the trapped particle area (inside the cylinder) and show that there is a certain cone of directions with a reduced flux. For the same model with the moving cylinder, the angular distribution samples are calculated for different positions of the observation point outside the cylinder. Anisotropy of order of the ejection to light velocity ratio is shown to arise. The calculated samples are in qualitative agreement with URAGAN muon hodoscope data.

KEYWORDS

cosmic rays, coronal mass ejections, angular distribution, anisotropy

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Editor-in-Chief

Geliy Zherebtsov

solater@iszf.irk.ru

Deputy Editor-in-Chief

Aleksandr Stepanov

stepanov@gaoran.ru

Deputy Editor-in-Chief

Alexander Potapov

potapov@iszf.irk.ru

Executive Secretary of Editorial Board

Natalia Polyushkina

npol@iszf.irk.ru

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GOST

Peregoudov D. V., Soloviev A. A., Yashin I. I., Shutenko V. V. Galactic cosmic ray anisotropy modelling // Solar-Terrestrial Physics. 2020. no. 1. pp. 29-34. DOI: https://doi.org/10.12737/stp-61202003. (Date of access 25.09.2026).

MLA

Dmitriy Peregoudov, Soloviev A. A., Yashin I. I., Shutenko V. V.. "Galactic cosmic ray anisotropy modelling." Solar-Terrestrial Physics 6.1 (2020): 29-34. DOI: https://doi.org/10.12737/stp-61202003.

APA

Peregoudov D. V., Soloviev A. A., Yashin I. I., Shutenko V. V. (2020). Galactic cosmic ray anisotropy modelling. Solar-Terrestrial Physics, 6(1), 29-34. https://doi.org/10.12737/stp-61202003

Chicago

Dmitriy Peregoudov, Soloviev A. A., Yashin I. I., Shutenko V. V.. "Galactic cosmic ray anisotropy modelling." Solar-Terrestrial Physics 6, no. 1 (2020): 29-34. https://doi.org/10.12737/stp-61202003.

WIKI

{{cite journal | author = Peregoudov D. V., Soloviev A. A., Yashin I. I., Shutenko V. V. | title = Galactic cosmic ray anisotropy modelling | journal = Solar-Terrestrial Physics | year = 2020 | volume = 6 | issue = 1 | pages = 29-34 | doi = 10.12737/stp-61202003 }}

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GALACTIC COSMIC RAY ANISOTROPY MODELLING Galactic cosmic ray anisotropy modelling

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