Characterization of ULF pulsations by THEMIS

被引：49

作者：

Sarris, T. E. ^{[1
,5
]}

Liu, W. ^{[5
]}

Kabin, K. ^{[6
]}

Li, X. ^{[5
]}

Elkington, S. R. ^{[5
]}

Ergun, R. ^{[5
]}

Rankin, R. ^{[6
]}

Angelopoulos, V. ^{[2
]}

Bonnell, J. ^{[4
]}

Glassmeier, K. H. ^{[3
]}

Auster, U. ^{[3
]}

机构：

[1] Demokritus Univ Thrace, Space Res Lab, GR-67100 Xanthi, Greece

[2] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90095 USA

[3] Tech Univ Carolo Wilhelmina Braunschweig, IGEP, D-38106 Braunschweig, Germany

[4] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[5] Univ Colorado, Atmospher & Space Phys Lab, Boulder, CO 80303 USA

[6] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

来源：

GEOPHYSICAL RESEARCH LETTERS | 2009年 / 36卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

KELVIN-HELMHOLTZ INSTABILITY; WAVES; FIELD; ELECTRONS;

D O I：

10.1029/2008GL036732

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The THEMIS five-probe constellation was launched in 17 February 2007 to study substorms; however its instrumentation and the alignment at distances <1R(E) among some of the THEMIS probes, particularly in the first period of its mission, provides unique opportunities to study ULF pulsations in the magnetosphere. In the case study presented, electric and magnetic field fluctuations are identified as field line resonances and their modes of oscillation are discussed. Phase-difference calculations between probes allow estimates of the mode number of the fluctuations. These observations give an excellent source for the verification of model estimates of frequency and polarization of the various modes of field line resonances. Citation: Sarris, T. E., et al. (2009), Characterization of ULF pulsations by THEMIS, Geophys. Res. Lett., 36, L04104, doi: 10.1029/2008GL036732.

引用

页数：5

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