Analytical model of the planetary bow shock for various magnetic field directions based on MHD calculations

Котова Галина Аврамовна; Веригин Михаил Иванович; Гомбоши Тамаш; Кабин Константин

doi:10.12737/stp-64202007

УДК 52 УДК 53

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ANALYTICAL MODEL OF THE PLANETARY BOW SHOCK FOR VARIOUS MAGNETIC FIELD DIRECTIONS BASED ON MHD CALCULATIONS Analytical model of the planetary bow shock for various magnetic field directions based on MHD calculations

АА Аа

Опубликовано в Solar-Terrestrial Physics · Том 6, Номер 4 · Страницы 44–49 · Рубрика: Results of current research

DOI: https://doi.org/10.12737/stp-64202007

Получено: 18.12.2020 Одобрено: 16.03.2026 Язык публикаций: ENG

Авторы

КО

Котова Галина Аврамовна

ORCID

ВЕ

Веригин Михаил Иванович

ГО

Гомбоши Тамаш

КА

Кабин Константин

КО

Котова Галина Аврамовна

Ученая степень: кандидат физико-математических наук

Институт космических исследований РАН Россия · Москва

ORCID

ВЕ

Веригин Михаил Иванович

Ученая степень: доктор физико-математических наук

Институт космических исследований РАН Россия · Москва

ГО

Гомбоши Тамаш

Ученое звание: профессор

Университет Мичигана США · Эн Арбор, Мичиган

КА

Кабин Константин

Ученое звание: профессор

Королевский военный колледж Канады Канада · Кингстон, Онтарио

АННОТАЦИЯ

Study of physical processes in plasma near planets often requires knowledge of the position and shape of the planetary bow shock. Empirical models are usually used since theoretical MHD and kinetic models consume too much computer time and cannot be used to track fast processes. M.I. Verigin proposed a semi-empirical approach based on the use of exact theoretical expressions with a small number of parameters, which have a clear physical meaning. These parameters are estimated by fitting experimental data or detailed MHD calculations. A model of the bow shock near an arbitrary-shaped obstacle has previously been developed for a gas-dynamic flow. This model can be applied to any sonic Mach numbers and large values of the Alfven Mach number. In addition, the asymptotic Mach cone — the angle of inclination of the shock wave at an infinite distance from the planet — has been calculated analytically in the MHD approximation. In this paper, we propose a model of the bow shock for any direction of the magnetic field with respect to the upcoming flow and for any Mach numbers. Parameters of the model are the distance of the nose point from the obstacle, radius of curvature and bluntness of the bow shock at the nose point, a parameter related to the transition to the asymptotic downstream slope of the shock, and a skewing angle appearing when the interplanetary magnetic field is directed at an angle to the solar wind velocity.

КЛЮЧЕВЫЕ СЛОВА

solar wind, interplanetary magnetic field, planetary bow shock, Mach cone

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Главный редактор

Жеребцов Гелий Александрович

solater@iszf.irk.ru

Заместитель главного редактора

Степанов Александр Владимирович

stepanov@gaoran.ru

Заместитель главного редактора

Потапов Александр Сергеевич

potapov@iszf.irk.ru

Ответственный секретарь редакции

Полюшкина Наталья Александровна

npol@iszf.irk.ru

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ГОСТ

Котова Г. А., Веригин М. И., Гомбоши Т., Кабин К. Analytical model of the planetary bow shock for various magnetic field directions based on MHD calculations // Solar-Terrestrial Physics. 2020. № 4. С. 44-49. DOI: https://doi.org/10.12737/stp-64202007. (дата обращения: 24.10.2026).

MLA

Котова Галина Аврамовна, Веригин М. И., Гомбоши Т., Кабин К.. "Analytical model of the planetary bow shock for various magnetic field directions based on MHD calculations." Solar-Terrestrial Physics 6.4 (2020): 44-49. DOI: https://doi.org/10.12737/stp-64202007.

APA

Котова Г. А., Веригин М. И., Гомбоши Т., Кабин К. (2020). Analytical model of the planetary bow shock for various magnetic field directions based on MHD calculations. Solar-Terrestrial Physics, 6(4), 44-49. https://doi.org/10.12737/stp-64202007

Chicago

Котова Галина Аврамовна, Веригин М. И., Гомбоши Т., Кабин К.. "Analytical model of the planetary bow shock for various magnetic field directions based on MHD calculations." Solar-Terrestrial Physics 6, no. 4 (2020): 44-49. https://doi.org/10.12737/stp-64202007.

WIKI

{{cite journal | author = Котова Г. А., Веригин М. И., Гомбоши Т., Кабин К. | title = Analytical model of the planetary bow shock for various magnetic field directions based on MHD calculations | journal = Solar-Terrestrial Physics | year = 2020 | volume = 6 | issue = 4 | pages = 44-49 | doi = 10.12737/stp-64202007 }}

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ANALYTICAL MODEL OF THE PLANETARY BOW SHOCK FOR VARIOUS MAGNETIC FIELD DIRECTIONS BASED ON MHD CALCULATIONS Analytical model of the planetary bow shock for various magnetic field directions based on MHD calculations

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