Observation of Electrostatic Solitary Waves associated with reconnection on the dayside magnetopause boundary
Observation of Electrostatic Solitary Waves associated with reconnection on the dayside magnetopause boundary
复制标题
DOI：
10.1029/2002gl016319
复制
发表时间：
2003-03
影响因子：
5.2
通讯作者：
H. Matsumoto;X. Deng;H. Kojima;R. R. Anderson-R.
中科院分区：
文献类型：
--
作者：
H. Matsumoto;X. Deng;H. Kojima;R. R. Anderson-R.
1997年1月10日，当日冕物质抛射袭击地球时，GEOTAIL沿着日侧磁层顶探测到静电孤立波（ESW）和调幅静电波（AMEW），并观测到三维多重x线磁重联。ESW的振幅高达~ 20mV/m，从较小振幅的二维结构演变为较大振幅的一维结构。ESW和AMEW的观测表明，与重连接相关的宽带静电发射增强不是随机噪声，而是非线性相干结构，可能在重连接过程中为电子扩散区提供重要的耗散。
When a Coronal Mass Ejection struck the Earth on January 10, 1997, Electrostatic Solitary Waves (ESW) and Amplitude Modulated Electrostatic Waves (AMEW) were detected as GEOTAIL skimmed along the dayside magnetopause and observed 3‐dimensional multiple x‐line magnetic reconnection. The ESW had amplitudes up to ∼20mV/m and evolved from two‐dimensional structures with smaller amplitudes to one‐dimensional structures with larger amplitudes. The observation of ESW and AMEW show that the enhanced broadband electrostatic emissions associated with reconnection are not random noises but are nonlinear coherent structures which may provide important dissipation in the electron diffusion region during reconnection.