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Fast acceleration of "killer" electrons and energetic ions by interplanetary shock stimulated ULF waves in the inner magnetosphere
Zong, QuiGang; Wang, YongFu; Yang, Biao +3 more
Energetic electrons and ions in the Van Allen radiation belt are the number one space weather threat. Understanding how these energetic particles are accelerated within the Van Allen radiation belt is one of the major challenges in space physics. This paper reviews the recent progress on the fast acceleration of "killer" electrons and energetic io…
High-speed flowing plasmas in the Earth's plasma sheet
Parks, George; Fu, SuiYan; Sun, WeiJie +4 more
A research topic of great interest to the space physics community is the observation of plasmas flowing at hundreds of kilometers per second in the Earth's plasma sheet. Although considerable effort has been made to understand the source of fast-flowing plasmas, many questions remain unanswered about the mechanisms that produce high-speed flows an…
Responses of the magnetotail plasma sheet to two interplanetary shocks: TC-1 observations
Zuo, PingBing; Liu, ZhenXing; Yao, Li +1 more
Two interplanetary shocks are examined to determine the responses of the magnetic field and plasma in the plasma sheet upon the shock impacts by using TC-1 observational data. The two shocks are observed by WIND on November 7, 2004. Prior to and after the shock, the IMF is either weakly southward or northward. The responses of the plasma sheet to …
Convective high-speed flow and field-aligned high-speed flows explored by TC-1
Dunlop, M. W.; Baumjohann, W.; Carr, C. +6 more
From June 1, 2004 to October 31, 2006, a total 465 high-speed flow events are observed by the TC-1 satellite in the near-Earth region (-13 RE < x < -9 RE, |Y|<10 RE, |Z|<5 RE). Based on the angle between the flow and the magnetic field, the high-speed flow events are further divided into two types, that is, field-aligned high-speed flo…
Plasma sheet stretching accompanied by field aligned energetic ion fluxes observed by the NUADU instrument aboard TC-2
Barabash, S.; Zhang, T. L.; Carr, C. M. +6 more
The NUADU (NeUtral Atom Detector Unit) instrument aboard TC-2 recorded 4л solid angle images of charged particles (E >180 keV) spiraling around the magnetic field lines in the near-Earth plasma sheet (at -7 RE, equatorial dawn-to-night side) during a geomagnetic storm (Dst =-219 nT) on August 24, 2005. Energetic ion beam events characterized b…
Double Star TC-1 observation of the earthward flowing plasmoids in the near magnetotail
Reme, H.; Shen, Chao; Carr, C. M. +4 more
We analyze Double Star TC-1 magnetic field data from July to September in 2004 and find that plasmoids exist in the very near-Earth magnetotail. It is the first time that TC-1 observes the plasmoids in the magnetotail at X > -13 RE. According to the difference of the magnetic field structure in plasmoids, we choose two typical cases for our stu…
Continuous tailward flow in the near-Earth magnetotail observed by TC-1 satellite
Shen, Chao; Zhang, LingQian; Liu, ZhenXing +2 more
On July 11, 2004, a substorm process in the period of continuous tailward flow was observed by the joint exploration of the TC-1, IMAGE and ACE satellites. The substorm observed by the TC-1 in the near-Earth has three stages: the growth phase (from 11:43 to 12:19), the pre-expansion process (from 12:19 to 12:28) and the dipolarization process. The…
The distribution characteristics of the flows in the near-Earth region: TC-1 observational results
Shen, Chao; Zhang, LingQian; Liu, ZhenXing +4 more
TC-1 observational results clearly indicate that the velocity of the flows in the near-Earth region is dependent on the satellite location. The flow speed decreases while satellite moves close to the Earth. The plasma flow in the region close to the Earth tends to drift into the midnight region from the dawn and dusk region while the flow in the r…