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Comparison of Multi-point Measurements of Current Sheet Structure and Analytical Models : Volume 26, Issue 9 (15/09/2008)

By Artemyev, A. V.

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Book Id: WPLBN0004001866
Format Type: PDF Article :
File Size: Pages 10
Reproduction Date: 2015

Title: Comparison of Multi-point Measurements of Current Sheet Structure and Analytical Models : Volume 26, Issue 9 (15/09/2008)  
Author: Artemyev, A. V.
Volume: Vol. 26, Issue 9
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Popov, V. Y., Artemyev, A. V., Petrukovich, A. A., Zelenyi, L. M., Malova, H. V., Nakamura, R.,...Apatenkov, S. (2008). Comparison of Multi-point Measurements of Current Sheet Structure and Analytical Models : Volume 26, Issue 9 (15/09/2008). Retrieved from http://www.ebooklibrary.org/


Description
Description: Space Research Institute, Russian Academy of Sciences, Moscow, Russia. Current density profiles of 22 thin current sheets, crossed by four Cluster spacecraft in the magnetotail are compared with the self-consistent model of anisotropic 1-D equilibrium, including several species of quasi-adiabatic (transient) ions and drifting electrons. In order to examine ion-scale features of the current density profile Cluster data from the 2001 and 2004 tail seasons were used when the spacecraft separation was about 2000 and 1000 km, respectively, while electron-scale features are studied using Cluster data from the 2003 season , when the spacecraft separation was about 200 km. The model ion and electron current density peaks embedded in a background plasma sheet successfully reproduce observed profiles. Stability criteria of the model current sheet are also consistent with the experiment.

Summary
Comparison of multi-point measurements of current sheet structure and analytical models

Excerpt
Asano, Y., Nakamura, R., Baumjohann, W., Runov, A., Voros, Z., Volwerk, M., Zhang, T. L., Balogh, A., Klecker, B., and Reme, H.: How typical are atypical current sheets?, Geophys. Res. Lett., 32(3), L03108, doi:10.1029/2004GL021834, 2005.; Baumjohann, W., Roux, A., Le, Contel, O., Nakamura, R., Birn, J., Hoshino, M., Lui, A. T. Y., Owen, C. J., Sauvaud, J.-A., Vaivads, A., Fontaine, D., and Runov, A.: Dynamics of thin current sheets: Cluster observations, Ann. Geophys., 25, 1365–1389, 2007.; Birn, J. and Schindler, K.: Self-consistent theory of three-dimensional convection in the geomagnetic tail, J. Geophys. Res., 88, 6969–698, 1983.; Birn, J. and Schindler, K.: Thin current sheets in the magnetotail and the loss of equilibrium, J. Geophys. Res., 107(A7), 1117, doi:10.1029/2001JA000291, 2002.; Birn,~J., Schindler,~K., and Hesse,~M.: Thin electron current sheets and their relation to auroral potentials, J. Geophys. Res., 109(A2), A02217, doi:10.1029/2003JA010303, 2004.; Buechner, J. and Zelenyi, L. M.: Regular and chaotic charged particle motion in magnetotaillike field reversals 1. Basic theory of trapped motion, J. Geophys. Res., 94(A9), 11 812–11 842, 1989.; Camporeale, E. and Lapenta, G.: Model of bifurcated current sheets in the Earth's magnetotail: Equilibrium and stability, J. Geophys. Res., 110, A07206, doi:10.1029/2004JA010779, 2005.; Cully, C. M., Ergun, R. E., Lucek, E., Eriksson, A., Baker, D. N., and Mouikis, C.: Forced current sheets in a flapping magnetotail, Int. Conf. Substorms, 8, 43–48, 2006.; Harris, E. G.: On a plasma sheet separating regions of oppositely directed magnetic field, Nuovo Cimento, 23, 115–121, 1962.; Hau, L.-N. and Fu, W.-Z.: Mathematical and physical aspects of Kappa velocity distribution, Phys. Plasma, 14, 110702, doi:10.1063/1.2779283, 2007.; Hau, L.-N. and Fu, W.-Z.: Vlasov–Maxwell equilibrium solutions for Harris sheet magnetic field with Kappa velocity distribution, Phys. Plasma, 12, 070701, doi:10.1063/1.1941047, 2005.; Kan, J. R.: On the structure of the magnetotail current sheet, J. Geophys. Res., 78, 3773–3781, 1973.; Lembége, B. and Pellat, R.: Stability of a thick two-dimensional quasineutral sheet, Phys. Fluids, 25, 1995–2004, 1982.; Malova, H. V., Zelenyi, L. M., Popov, V. Y., Delcourt, D. C., Petrukovich, A. A., and Runov, A. V.: Asymmetric thin current sheets in the Earth's magnetotail, J. Geophys. Res., 34, L16108, doi:10.1029/2007GL030011, 2007.; Schindler, K.: A Theory of the Substorm Mechanism, J. Geophys. Res., 79(19), 2803–2810, 1974.; Schindler, K. and Birn, J.: Model of two-dimensional embedded thin current sheets from Vlasov theory, J. Geophys. Res., 107(A8), 1193, doi:10.1029/2001JA000304, 2002.; Manankova, A. V.: Two-dimensional current-carrying plasma sheet in the near-Earth geomagnetic tail region: a quasi-stationary evolution, Ann. Geophys., 21, 2259–2269, 2003.; Nakamura, R., Baumjohann, W., Asano, Y., Runov, A., Balogh, A., Owen, C. J., Fazakerley, A. N., Fujimoto, M., Klecker, B., and Reme, H.: Dynamics of thin current sheets associated with magnetotail reconnection, J. Geophys. Res., 111(A11), A11206, doi:10.1029/2006JA011706, 2006.; Pellat, R., Coroniti, F. V., and Pritchett, P. L.: Does ion tearing exist?, Geophys. Res. Lett., 18, 143–146, 1991.; Petrukovich, A. A., Zhang, T. L., Baumjohann, W., Nakamura, R., Runov, A., Balogh, A., and Carr, C.: Oscillatory magnetic flux tube slippage in the plasma sheet, Ann. Geophys., 24, 1695–1704, 2006.; Petrukovich, A. A., Baumjohann, W., Nakamura, R., Runov, A., Balogh, A., and Reme, H.: Thinning and stretching of the plasma sheet, J. Geophys. Res., 112(A10), A10213, doi:10.1029/2007JA012349, 2007.; Rich, F. J., Vasyliunas, V. M., and Wolf, R. A.: On the Balance of Stresses in the Plasma Sheet, J. Geophys. Res., 77(25), 4670–4676, 1972.; Runov, A., Nakamura, R., Baumjohann, W., Zhang, T. L., Volwerk, M., Eichelberger, H.-U., and Balogh, A.: Cluster observation of a bifurcated current sheet, Geophys. Res. Lett., 30

 

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