Compressible turbulence with slow-mode waves observed in the bursty bulk flow of plasma sheet | |
Wang, Tieyan; Cao, Jinbin; Fu, Huishan; Meng, Xuejie; Dunlop, M.; Cao, JB (reprint author), Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China. | |
Department | 空间科学部 |
Source Publication | GEOPHYSICAL RESEARCH LETTERS
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2016 | |
Volume | 43Issue:5Pages:1854-1861 |
ISSN | 0094-8276 |
Language | 英语 |
Keyword | Turbulence Plasma Sheet Slow Waves Multiscale Bursty Bulk Flow Probability Density Function |
Abstract | In this paper, we report the evidence of compressible turbulence with slow-mode waves in a bursty bulk flow of plasma sheet. This compressible turbulence is characterized by a multiscale (1-60s) anticorrelation between plasma density and magnetic field strength. Besides, the magnetic compressibility spectrum stays nearly constant at all the measured frequencies. Furthermore, the turbulence energy distributions are anisotropic with k>k(//), and the dispersion relation is consistent with slow-mode prediction. The fluctuations of density and magnetic field have similar double slope spectrum and kurtosis. These results suggest that the slow waves are involved in the intermittent turbulence cascade from MHD to ion kinetic scales, which may have significant implications for the energy transfer in the plasma sheet. |
Indexed By | SCI ; EI |
Document Type | 期刊论文 |
Identifier | http://ir.nssc.ac.cn/handle/122/5667 |
Collection | 空间科学部 |
Corresponding Author | Cao, JB (reprint author), Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China. |
Recommended Citation GB/T 7714 | Wang, Tieyan,Cao, Jinbin,Fu, Huishan,et al. Compressible turbulence with slow-mode waves observed in the bursty bulk flow of plasma sheet[J]. GEOPHYSICAL RESEARCH LETTERS,2016,43(5):1854-1861. |
APA | Wang, Tieyan,Cao, Jinbin,Fu, Huishan,Meng, Xuejie,Dunlop, M.,&Cao, JB .(2016).Compressible turbulence with slow-mode waves observed in the bursty bulk flow of plasma sheet.GEOPHYSICAL RESEARCH LETTERS,43(5),1854-1861. |
MLA | Wang, Tieyan,et al."Compressible turbulence with slow-mode waves observed in the bursty bulk flow of plasma sheet".GEOPHYSICAL RESEARCH LETTERS 43.5(2016):1854-1861. |
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