Аннотация:
We propose to interpret high-magnitude magnetic barriers in space and solar plasma as due to pile-up of magnetic field lines and their Alfvénic collapse for MHD flows. The analysis of experimental data of both Interball and Cluster spacecrafts shows that high-magnitude magnetic structures found in the Earth magnetosheath and near the magnetopause are supported by a nearly thermal transverse plasma flow, with the minimum barrier width being of the order of the ion gyroradius. The collapse termination at such scales can be explained by the balance between pile-up of magnetic field lines and backward finite-gyroradius diffusion. Intercomparison of the theory, modeling and experimental data points out that the Alfvénic collapse is in general a promising mechanism for magnetic field generation and plasma separation.
Поступила в редакцию: 07.09.2006 Исправленный вариант: 07.02.2007
Образец цитирования:
E. A. Kuznetsov, S. Savin, E. Amata, M. Dunlop, Y. Khotyaintsev, L. M. Zelenyi, E. V. Panov, J. Büchner, S. Romanov, J. Blecki, J. L. Rauch, B. Nikutowski, “Strong space plasma magnetic barriers and Alfvénic collapse”, Письма в ЖЭТФ, 85:5 (2007), 288–293; JETP Letters, 85:5 (2007), 236–241
Savin S., Zelenyi L., Amata E., Budaev V., Buechner J., Blecki J., Balikhin M., Klimov S., Korepanov V.E., Kozak L., Kudryashov V., Kunitsyn V., Lezhen L., Milovanov A.V., Nemecek Z., Nesterov I., Novikov D., Panov E., Rauch J.L., Rothkaehl H., Romanov S., Safrankova J., Skalsky A., Veselov M., Planetary and Space Science, 59:7 (2011), 606–617
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С. П. Савин, В. П. Будаев, Л. М. Зелёный, E. Amata, Д. Сайбек, В. Н. Луценко, Н. Л. Бородкова, Х. Занг, В. Ангелопулос, Я. Шафранкова, З. Немечек, Я. Бленцки, Й. Бюхнер, Л. В. Козак, С. Романов, А. А. Скальский, В. Красносельских, Письма в ЖЭТФ, 93:12 (2011), 837–846; S. P. Savin, V. P. Budaev, L. M. Zelenyi, E. Amata, D. Sibeck, V. N. Lutsenko, N. L. Borodkova, H. Zhang, V. Angelopoulos, J. Safrankova, Z. Nemecek, J. Blecki, J. Buechner, L. V. Kozak, S. Romanov, A. A. Skal'sky, V. Krasnoselsky, JETP Letters, 93:12 (2011), 754–762
S. Savin, E. Amata, L. M. Zelenyi, V. Budaev, G. Consolini, R. Treumann, E. Lucek, J. Safrankova, Z. Nemecek, Y. Khotyaintsev, M. Andre, J. Buechner, H. Alleyne, P. Song, J. Blecki, J. L. Rauch, S. Romanov, S. Klimov, A. Skalsky, Письма в ЖЭТФ, 87:11 (2008), 691–697; JETP Letters, 87:11 (2008), 593–599