Instability of acoustic oscillations under the influence of radiation
https://doi.org/10.37493/2307-910X.2025.3.11
Abstract
Introduction. The radiation intensity of the high-temperature plasma of the solar corona depends strongly on temperature, and this dependence is complex, as the contributions of various radiation sources are highly nonuniform, particularly in the emission lines of elements inhabiting the corona. Results and discussion. For example, in the temperature range of 0.5-1 MK there is a strong increase in the radiation function, and in the range of 1-4.5 MK there is a similarly rapid decline. In the damping range, adiabatic instability of plasma density oscillations is possible, due to the rapid damping rate. Conclusion. Using previously obtained cubic spline interpolation of the radiation function, the adiabatic instability was studied, and the boundaries of the instability interval were determined, which are confirmed by other calculations.
Keywords
сomputer modeling,
plasma physics,
radiation function,
magnetic hydrodynamic,
Sun,
oscillations and waves
Supporting agencies: The study was carried out within the framework of the state assignment of the Ministry of Education and Science of the Russian Federation (No. 075-03-2024-113).
About the Authors
G. A. Mankaeva
State University named after B. B. Gorodovikov
Россия
Россия
Mankaeva Galina Alekseevna, Senior Lecturer at the Department of Theoretical Physics
phone number: +79061764200
11, Pushkina Street, Elista
S. B. Derteev
State University named after B. B. Gorodovikov
Россия
Россия
Derteev Sergey Badmaevich, Senior Lecturer at the Department of Theoretical Physics
phone number: +79613963655
11, Pushkina Street, Elista
S. S. Ageev
State University named after B. B. Gorodovikov
Россия
Россия
Ageev Sergey Sergeevich, Junior Researcher
phone number: +79093998719
11, Pushkina Street, Elista
A. K. Baltykov
State University named after B. B. Gorodovikov
Россия
Россия
Baltykov Arslan Konstantinovich, Senior Lecturer at the Department of Environmental Management and Protection
phone number: +79371951901
11, Pushkina Street, Elista
B. B. Mikhalyayev
State University named after B. B. Gorodovikov
Россия
Россия
Mikhalyayev Badma Borisovich, Head of the Department of Theoretical Physics
phone number: +79371951901
11, Pushkina Street, Elista
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Review
For citations:
Mankaeva G.A., Derteev S.B., Ageev S.S., Baltykov A.K., Mikhalyayev B.B. Instability of acoustic oscillations under the influence of radiation. Modern Science and Innovations. 2025;(3):116-122. https://doi.org/10.37493/2307-910X.2025.3.11
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