Mathematical modeling of pre-llare signal formation in the solar atmosphere
- Authors: Romanov D.V.1, Romanov K.V.1, Romanov V.A.2, Stepanov E.A.2, Lebedev A.A.2, Maskaev V.A.2
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Affiliations:
- Krasnoyarsk State Pedagogical University
- Saratov State University
- Issue: Vol 29, No 2 (2025)
- Pages: 334-346
- Section: Mathematical Modeling, Numerical Methods and Software Complexes
- URL: https://journals.rcsi.science/1991-8615/article/view/349674
- DOI: https://doi.org/10.14498/vsgtu2140
- EDN: https://elibrary.ru/NAFTRO
- ID: 349674
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Abstract
This study is devoted to the development of Parker instability in the short-wavelength range of large-scale magnetic field oscillations (wavenumber $m>20$) within the upper layers of the solar convective zone. The strongly nonlinear ascent of the magnetic arc's apex forms a needle-like structure that penetrates the solar atmosphere at hypersonic velocities. During the magnetic field's rise, photospheric and chromospheric layers experience an abrupt vertical impact, generating a train of circular diverging shock waves propagating along the solar surface. This phenomenon, reliably detected by modern observational instruments, is called as a ''sunquake''. The onset of diverging shock wave generation serves as a precursor to flare activity within the active region. The paper provides numerical estimates for the spatial and temporal resolution requirements of observational instrumentation needed to study hypersonic magnetic flux emergence in the solar chromosphere.
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##article.viewOnOriginalSite##About the authors
Dmitry V. Romanov
Krasnoyarsk State Pedagogical University
Author for correspondence.
Email: d-v-romanov@ya.ru
ORCID iD: 0000-0002-4982-5973
Scopus Author ID: 7005015022
https://www.mathnet.ru/person183792
Cand. Phys. & Math. Sci.; Associate Professor; Dept. of Computer Science and Information Technology in Education
Russian Federation, 660049, Krasnoyarsk, Ada Lebedeva st., 89Konstantin V. Romanov
Krasnoyarsk State Pedagogical University
Email: k-v-romanov@ya.ru
ORCID iD: 0000-0001-7320-2517
Scopus Author ID: 56517878500
https://www.mathnet.ru/person183791
Cand. Phys. & Math. Sci.; Associate Professor; Dept. of Mathematics and Methods of Teaching Mathematics
Russian Federation, 660049, Krasnoyarsk, Ada Lebedeva st., 89Valery A. Romanov
Saratov State University
Email: valeriy.a.romanov@yandex.ru
ORCID iD: 0000-0001-9876-0822
Scopus Author ID: 57197104739
https://www.mathnet.ru/person183794
Dr. Phys. & Math. Sci.; Professor; Dept. of Mathematical Cybernetics and Computer Science
Russian Federation, 410012, Saratov, Astrakhanskaya st., 83Evgeny A. Stepanov
Saratov State University
Email: ev_stepanof@yandex.ru
ORCID iD: 0000-0002-2050-2724
Scopus Author ID: 57224766992
https://www.mathnet.ru/person203707
Postgraduate Student; Dept. of Mathematical Cybernetics and Computer Science
Russian Federation, 410012, Saratov, Astrakhanskaya st., 83Anton A. Lebedev
Saratov State University
Email: maiorovaleks94@gmail.com
ORCID iD: 0000-0002-8241-1916
https://www.mathnet.ru/person203708
Postgraduate Student; Dept. of Mathematical Cybernetics and Computer Science
Russian Federation, 410012, Saratov, Astrakhanskaya st., 83Vladimir A. Maskaev
Saratov State University
Email: maskaev-01@mail.ru
ORCID iD: 0009-0000-3754-6902
https://www.mathnet.ru/rus/person230212
Postgraduate Student; Dept. of Mathematical Cybernetics and Computer Science
Russian Federation, 410012, Saratov, Astrakhanskaya st., 83References
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