Formation of current density profile in tilted current sheets

被引：28
作者：
Petrukovich, A. A. [1 ]
Baumjohann, W. [2 ]
Nakamura, R. [2 ]
Runov, A. [2 ]
机构：
[1] Space Res Inst, Moscow 117997, Russia
[2] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria
来源：
ANNALES GEOPHYSICAE | 2008年 / 26卷 / 12期
关键词：
Magnetospheric physics; Magnetotail; Plasma sheet;
D O I：
10.5194/angeo-26-3669-2008
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate Cluster observations of strongly tilted sheets (flapping events) in the magnetotail. In accordance with the simple model of slip deformation (vertical differential displacement of neighboring flux tubes), the J(y) current density component in the tilted sheet remains constant and equal to that in the horizontal undisturbed sheet. However, a substantial J(z) component appears proportional to the local sheet tilt. Slip-type variations, having smaller scale than the full crossing, locally change the tilt and J(z) and may thus create a variety of non-classical (bifurcated, asymmetric etc) current density profiles.
引用
收藏
页码：3669 / 3676
页数：8
相关论文
共 19 条
  • [1] How typical are atypical current sheets? -: art. no. L03108
    Asano, Y
    Nakamura, R
    Baumjohann, W
    Runov, A
    Vörös, Z
    Volwerk, M
    Zhang, TL
    Balogh, A
    Klecker, B
    Réme, H
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2005, 32 (03) : 1 - 4
  • [2] The Cluster Magnetic Field Investigation:: overview of in-flight performance and initial results
    Balogh, A
    Carr, CM
    Acuña, MH
    Dunlop, MW
    Beek, TJ
    Brown, P
    Fornacon, KH
    Georgescu, E
    Glassmeier, KH
    Harris, J
    Musmann, G
    Oddy, T
    Schwingenschuh, K
    [J]. ANNALES GEOPHYSICAE, 2001, 19 (10-12) : 1207 - 1217
  • [3] Structure of plasma sheet in magnetotail: Double-peaked electric current sheet
    Hoshino, M
    Nishida, A
    Mukai, T
    Saito, Y
    Yamamoto, T
    Kokubun, S
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1996, 101 (A11) : 24775 - 24786
  • [4] WAVY NATURE OF MAGNETOTAIL NEUTRAL SHEET
    LUI, ATY
    MENG, CI
    AKASOFU, SI
    [J]. GEOPHYSICAL RESEARCH LETTERS, 1978, 5 (04) : 279 - 282
  • [5] Thinning and stretching of the plasma sheet
    Petrukovich, A. A.
    Baumjohann, W.
    Nakamura, R.
    Runov, A.
    Balogh, A.
    Reme, H.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2007, 112 (A10)
  • [6] Oscillatory magnetic flux tube slippage in the plasma sheet
    Petrukovich, A. A.
    Zhang, T. L.
    Baumjohann, W.
    Nakamura, R.
    Runov, A.
    Balogh, A.
    Carr, C.
    [J]. ANNALES GEOPHYSICAE, 2006, 24 (06) : 1695 - 1704
  • [7] Cluster vision of the magnetotail current sheet on a macroscale
    Petrukovich, AA
    Baumjohann, W
    Nakamura, R
    Runov, A
    Balogh, A
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2005, 110 (A6)
  • [8] Plasma sheet structure during strongly northward IMF
    Petrukovich, AA
    Baumjohann, W
    Nakamura, R
    Balogh, A
    Mukai, T
    Glassmeier, KH
    Reme, H
    Klecker, B
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2003, 108 (A6)
  • [9] Reconstruction of the magnetotail current sheet structure using multi-point Cluster measurements
    Runov, A
    Sergeev, VA
    Nakamura, R
    Baumjohann, W
    Zhang, TL
    Asano, Y
    Volwerk, M
    Vörös, Z
    Balogh, A
    Rème, H
    [J]. PLANETARY AND SPACE SCIENCE, 2005, 53 (1-3) : 237 - 243
  • [10] Electric current and magnetic field geometry in flapping magnetotail current sheets
    Runov, A
    Sergeev, VA
    Baumjohann, W
    Nakamura, R
    Apatenkov, S
    Asano, Y
    Volwerk, M
    Vörös, Z
    Zhang, TL
    Petrukovich, A
    Balogh, A
    Sauvaud, JA
    Klecker, B
    Rème, H
    [J]. ANNALES GEOPHYSICAE, 2005, 23 (04) : 1391 - 1403
12