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Brief Communication: Weibel, Firehose and Mirror Mode Relations : Volume 21, Issue 1 (22/01/2014)

By Treumann, R. A.

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Book Id: WPLBN0003991662
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Brief Communication: Weibel, Firehose and Mirror Mode Relations : Volume 21, Issue 1 (22/01/2014)  
Author: Treumann, R. A.
Volume: Vol. 21, Issue 1
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Baumjohann, W., & Treumann, R. A. (2014). Brief Communication: Weibel, Firehose and Mirror Mode Relations : Volume 21, Issue 1 (22/01/2014). Retrieved from http://worldebookfair.org/


Description
Description: Department of Geophysics and Environmental Sciences, Munich University, Munich, Germany. Excitation of Weibel magnetic fields in an initially non-magnetized though anisotropic plasma may trigger other low-frequency instabilities fed by pressure anisotropy. It is shown that under Weibel-like stable conditions the Weibel-like thermal fluctuation magnetic field allows for restricted Firehose-mode growth. In addition, low-frequency Whistlers can also propagate in the plasma under certain anisotropic conditions. When the Weibel-like mode becomes unstable, Firehose instability ceases but Mirror modes take over. This will cause bubble structures in the Weibel-like field in addition to filamentation.

Summary
Brief Communication: Weibel, Firehose and Mirror mode relations

Excerpt
Landau, L. D. and Lifshitz, E. M.: Electrodynamics of Continuous Media, Pergamon Press, Oxford, 1960.; Achterberg, A. and Wiersma, J.: The Weibel instability in relativistic plasmas. I. Linear theory, II. Nonlinear theory and stabilization mechanism, Astron. Astrophys., 475, 1–18, doi:10.1051/0004-6361:20065365, 2007.; Akhiezer, A. I., Akhiezer, I. A., Sitenko, R. V., and Stepanov, K. N.: Nonlinear Theory and Fluctuations, in: Plasma Electrodynamics, Pregamon Press, Oxford, UK, 2, 116–142, 1975.; Baumjohann, W. and Treumann, R. A.: Basic Space Plasma Physics, Revised Edition, Imperial College Press at World Scientific, London & Singapore, 357–359, 2012.; Baumjohann, W., Treumann, R. A., Georgescu, E., Haerendel, G., Fornacon, K.-H., and Auster, U.: Waveform and packet structure of lion roars, Ann. Geophys., 17, 1528–1534, doi:10.1007/s00585-999-1528-9, 1999.; Bykov, A. M. and Treumann, R. A.: Fundamentals of collisionless shocks for astrophysical application, 2. Relativistic shocks, Astron. Astrophys. Rev., 19, 42, doi:10.1007/s00159-011-0042-8, 2011.; Felten, T. and Schlickeiser, R.: Spontaneous electromagnetic fluctuations in unmagnetized plasmas. IV. Relativistic form factors of aperiodic Lorentzian modes, Phys. Plasmas, 20, 082116, doi:10.1063/1.4817804, 2013a.; Felten, T. and Schlickeiser, R.: Spontaneous electromagnetic fluctuations in unmagnetized plasmas. V. Relativistic form factors of weakly damped/amplified thermal modes, Phys. Plasmas, 20, 082117, doi:10.1063/1.4817805, 2013b.; Felten, T. and Schlickeiser, R.: Spontaneous electromagnetic fluctuations in unmagnetized plasmas. VI. Transverse, collective mode for arbitrary distribution functions, Phys. Plasmas, 20, 104502, doi:10.1063/1.4824114, 2013c.; Felten, T., Schlickeiser, R., Yoon, P. H., and Lazar, M.: Spontaneous electromagnetic fluctuations in unmagnetized plasmas. II. Relativistic form factors of aperiodic thermal modes, Phys. Plasmas, 20, 052113, doi:10.1063/1.4804402, 2013.; Fried, B. D.: Mechanism for instability of transverse plasma waves, Phys. Fluids, 2, 337, doi:10.1063/1.1705933, 1959.; Lund, E. J., Treumann, R. A., and Labelle, J.: Quasi-thermal fluctuations in a beam-plasma system, Phys. Plasmas, 3, 1234–1240, doi:10.1063/1.871747, 1996.; Pokhotelov, O. A. and Amariutei, O. A.: Quasi–linear dynamics of Weibel instability, Ann. Geophys., 29, 1997–2001, doi:10.5194/angeo-29-1997-2011, 2011.; Pokhotelov, O. A., Sagdeev, R. Z., Balikhin, M. A., Onishchenko, O. G., and Fedun, V. N.: Nonlinear mirror waves in non-Maxwellian space plasma, J. Geophys. Res., 113, A04225, doi:10.1029/2007JA012642, 2008.; Pokhotelov, O. A., Sagdeev, R. Z., Balikhin, M. A., Fedun, V. N., and Dudnikova, G. I.: Nonlinear Mirror and Weibel modes: peculiarities of quasi-linear dynamics, Ann. Geophys., 28, 2161–2167, doi:10.5194/angeo-28-2161-2010, 2010.; Pokhotelov, O. A., Onishchenko, O. G., and Stenflo, L.: Physical mechanisms for electron mirror and field swelling modes, Phys. Scripta, 87, 065303, doi:10.1088/0031-8949/87/06/065303, 2013.; Schlickeiser, R. and Skoda, T.: Linear theory of weakly amplified, parallel propagating, transverse temperature-

 

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