EGU2020-4002
https://doi.org/10.5194/egusphere-egu2020-4002
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Statistical properties of ions in bursty bulk flows

Mingyu Wu1, Zonghao Pan2, Yangjun Chen1, and Tielong Zhang1
Mingyu Wu et al.
  • 1School of space science and applied technology, Harbin institute of Technology, Shenzhen, China
  • 2School of earth and space science, University of science and technology of China, Hefei, China

With the observations of THEMIS and MMS Mission, we have investigated the properties of ions in bursty bulk flows (BBFs). Based on analysis of 315 BBF events, we can obtain the statistical features of ions in the BBFs. The results can be summarized as follows: (1) the occurrence rate of BBFs is related with AE index, which is also confirmed by previous studies; (2) the ion number density in the duskside is nearly at the same level with that in the dawnside; (3) in the region -10RE > XGSM> -15RE(where REis the earth radius), the ion temperature in the duskside is much higher than that in the dawnside; (4) the ion temperature anisotropy T⊥/T∥ is weaker as BBFs close to the Earth; (5) corresponds to cold electrons (Te < 1.5 keV), the ratio of the ion and electron temperature Ti/Te can reach 10-15 and the temperature of ions and electrons have a linear correlation.

How to cite: Wu, M., Pan, Z., Chen, Y., and Zhang, T.: Statistical properties of ions in bursty bulk flows, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-4002, https://doi.org/10.5194/egusphere-egu2020-4002, 2020