The location of magnetic reconnection at Saturn's magnetopause: A comparison with Earth

被引：50
|
作者：
Fuselier, S. A. [1 ,2 ]
Frahm, R. [1 ]
Lewis, W. S. [1 ]
Masters, A. [3 ]
Mukherjee, J. [1 ]
Petrinec, S. M. [4 ]
Sillanpaa, I. J. [1 ]
机构：
[1] SW Res Inst, San Antonio, TX 78238 USA
[2] Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX USA
[3] JAXA Inst Space & Astronaut Sci, Sagamihara, Kanagawa, Japan
[4] Lockheed Martin Adv Technol Ctr, Palo Alto, CA USA
来源：
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2014年 / 119卷 / 04期
基金：
美国国家科学基金会;
关键词：
Saturn; magnetopause; reconnection; HIGH-LATITUDE MAGNETOPAUSE; SOLAR-WIND; FIELD CONDITIONS; SHEAR EVIDENCE; OUTER PLANETS; PLASMA BETA; INTERPLANETARY; DEPENDENCE; FLOW; MAGNETOSPHERE;
D O I：
10.1002/2013JA019684
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Data from the Cassini Electron Spectrometer are used to investigate the location of magnetic reconnection at Saturn's magnetopause. Heated, streaming electron distributions in the boundary layer on the magnetosheath side of the magnetopause are evidence of reconnection and an open magnetopause. A model for the location of reconnection is used to compare the modeled and observed streaming direction of the heated electron distributions. Magnetic reconnection at Saturn's magnetopause is predicted and observed to occur at locations similar to those at Earth's magnetopause. Although not conclusive, the results here are consistent with the expected importance of X-line drifts in suppressing low-shear reconnection. Because of different conditions at Saturn's magnetopause, this suppression is predicted to be more severe at Saturn than at Earth.
引用
收藏
页码：2563 / 2578
页数：16
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