The modeling of quasi-periodic oscillations propagation in the solar corona
https://doi.org/10.37493/2307-910X.2023.4.18
Abstract
In the general problem of oscillations observed in the solar corona, a particularly intriguing position is occupied by quasi-periodic oscillations, which are often observed in coronal holes. Most often, periods are observed in pairs of close values. Among the possible explanations of this phenomenon, we consider the dispersion of acoustic waves under the influence of thermal conductivity. The possibility of the appearance of pairs of periods may be due to the existence of a minimum at the group velocity, which is realized under the conditions available in the corona. We show how this works, and also claim that this mechanism can serve for the purposes of coronal seismology to determine the parameters of coronal plasma.
Keywords
computer modeling,
quasi-periodic oscillations,
plasma physics,
numerical solution,
acoustic waves,
hydrodynamics,
dispersion,
wave packets
Supporting agencies: The work was carried out within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (No. 075-03-2022-119/1 "Development of new observational and theoretical approaches in space weather forecasting based on ground-based observations").
About the Authors
N. K. Shividov
B. B. Gorodovikov Kalmyk State University
Russian Federation
Russian Federation
Nikolay K. Shividov – Assistant of the Department of Theoretical Physics
11, Pushkin St., Elista, +79613955124
A. K. Baltykov
Kalmyk State University named after B. B. Gorodovikov
Russian Federation
Russian Federation
Arslan K. Baltykov – Senior Lecturer at the Department of Environmental Management and Environmental Protection
11, Pushkin St., Elista, +79371951901
T. V. Velegurin
B. B. Gorodovikov Kalmyk State University
Russian Federation
Russian Federation
Timofey V. Velegurin – Assistant of the Department of Theoretical Physics
11, Pushkin St., Elista, +79093955850
G. A. Mankaeva
B. B. Gorodovikov Kalmyk State University
Russian Federation
Russian Federation
Galina A. Mankaeva – Senior Lecturer at the Department of Theoretical Physics
11, Pushkin St., Elista, +79061764200
B. B. Mikhalyaev
Kalmyk State University named after B. B. Gorodovikov
Russian Federation
Russian Federation
Badma B. Mikhalyaev – Professor of the Department of Theoretical Physics
11, Pushkin St., Elista, +79613967444
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Review
For citations:
Shividov N.K., Baltykov A.K., Velegurin T.V., Mankaeva G.A., Mikhalyaev B.B. The modeling of quasi-periodic oscillations propagation in the solar corona. Modern Science and Innovations. 2023;(4):160-166. (In Russ.) https://doi.org/10.37493/2307-910X.2023.4.18
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