Generation of Alfvén waves in magnetized plasma by laser plasma bunches at Mach numbers much less than unity
In this paper, we examine a torsional Alfvén wave produced by periodic plasma bunches in a magnetized plasma flux tube. A new effect has been revealed: the wave is generated not only during the action of bunches, but also for a long time after the termination, which makes it possible to increase the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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INFRA-M
2022-06-01
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| Series: | Solar-Terrestrial Physics |
| Subjects: | |
| Online Access: | https://naukaru.ru/en/nauka/article/49039/view |
| _version_ | 1811323503305031680 |
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| author | Tishchenko V. N. Berezutsky A. G. Dmitrieva L. R. Miroshnichenko I. B. Shaikhislamov I. F. |
| author_facet | Tishchenko V. N. Berezutsky A. G. Dmitrieva L. R. Miroshnichenko I. B. Shaikhislamov I. F. |
| author_sort | Tishchenko V. N. |
| collection | DOAJ |
| description | In this paper, we examine a torsional Alfvén wave produced by periodic plasma bunches in a magnetized plasma flux tube. A new effect has been revealed: the wave is generated not only during the action of bunches, but also for a long time after the termination, which makes it possible to increase the wavelength by several times. We have determined the conditions under which the wave contains η~40 % of the total bunch energy. The wave radius depends on the energy of one bunch; and the length, on their number. The optimum number of bunches is 15. Simultaneously with the Alfvén wave, a bunch plasma jet (η~35 %) and a slow magnetosonic wave (η~10 %) propagate in the force tube. Similarity parameters scale the results to laboratory and near-Earth magnetized plasma. |
| first_indexed | 2024-04-13T13:56:19Z |
| format | Article |
| id | doaj.art-25ed90f14b1d42819c56b57f74264d02 |
| institution | Directory Open Access Journal |
| issn | 2500-0535 |
| language | English |
| last_indexed | 2024-04-13T13:56:19Z |
| publishDate | 2022-06-01 |
| publisher | INFRA-M |
| record_format | Article |
| series | Solar-Terrestrial Physics |
| spelling | doaj.art-25ed90f14b1d42819c56b57f74264d022022-12-22T02:44:10ZengINFRA-MSolar-Terrestrial Physics2500-05352022-06-0182919710.12737/stp-82202214Generation of Alfvén waves in magnetized plasma by laser plasma bunches at Mach numbers much less than unityTishchenko V. N.0Berezutsky A. G.1Dmitrieva L. R.2Miroshnichenko I. B.3Shaikhislamov I. F.4Institute of Laser Physics SB RAS, Novosibirsk, RussiaInstitute of Laser Physics SB RAS, Novosibirsk, RussiaInstitute of Laser Physics SB RAS, Novosibirsk, RussiaInstitute of Laser Physics SB RAS, Novosibirsk, RussiaInstitute of Laser Physics SB RAS, Novosibirsk, RussiaIn this paper, we examine a torsional Alfvén wave produced by periodic plasma bunches in a magnetized plasma flux tube. A new effect has been revealed: the wave is generated not only during the action of bunches, but also for a long time after the termination, which makes it possible to increase the wavelength by several times. We have determined the conditions under which the wave contains η~40 % of the total bunch energy. The wave radius depends on the energy of one bunch; and the length, on their number. The optimum number of bunches is 15. Simultaneously with the Alfvén wave, a bunch plasma jet (η~35 %) and a slow magnetosonic wave (η~10 %) propagate in the force tube. Similarity parameters scale the results to laboratory and near-Earth magnetized plasma.https://naukaru.ru/en/nauka/article/49039/viewplasma bunchesmagnetic fieldalfvén wavenumerical simulation |
| spellingShingle | Tishchenko V. N. Berezutsky A. G. Dmitrieva L. R. Miroshnichenko I. B. Shaikhislamov I. F. Generation of Alfvén waves in magnetized plasma by laser plasma bunches at Mach numbers much less than unity Solar-Terrestrial Physics plasma bunches magnetic field alfvén wave numerical simulation |
| title | Generation of Alfvén waves in magnetized plasma by laser plasma bunches at Mach numbers much less than unity |
| title_full | Generation of Alfvén waves in magnetized plasma by laser plasma bunches at Mach numbers much less than unity |
| title_fullStr | Generation of Alfvén waves in magnetized plasma by laser plasma bunches at Mach numbers much less than unity |
| title_full_unstemmed | Generation of Alfvén waves in magnetized plasma by laser plasma bunches at Mach numbers much less than unity |
| title_short | Generation of Alfvén waves in magnetized plasma by laser plasma bunches at Mach numbers much less than unity |
| title_sort | generation of alfven waves in magnetized plasma by laser plasma bunches at mach numbers much less than unity |
| topic | plasma bunches magnetic field alfvén wave numerical simulation |
| url | https://naukaru.ru/en/nauka/article/49039/view |
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