Journal cover Journal topic
Annales Geophysicae An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.621 IF 1.621
  • IF 5-year value: 1.614 IF 5-year 1.614
  • CiteScore value: 1.61 CiteScore 1.61
  • SNIP value: 0.900 SNIP 0.900
  • SJR value: 0.910 SJR 0.910
  • IPP value: 1.58 IPP 1.58
  • h5-index value: 24 h5-index 24
  • Scimago H index value: 80 Scimago H index 80
Discussion papers | Copyright
https://doi.org/10.5194/angeo-2018-47
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular paper 30 May 2018

Regular paper | 30 May 2018

Review status
This discussion paper is a preprint. It has been under review for the journal Annales Geophysicae (ANGEO). The revised manuscript was not accepted.

Contribution of patchy reconnection to the ion to electron temperature ratio in the Earth's magnetotail

Chuxin Chen1 and Chih-Ping Wang2 Chuxin Chen and Chih-Ping Wang
  • 1CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Sciences, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui, 230026, China
  • 2epartment of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, USA

Abstract. The ion to electron temperature ratio is a good indicator of the processes involved in the plasma sheet. Observations have suggested that patchy reconnection and the resulting earthward bursty bulk flows (BBFs) transport may be involved in causing the lower temperature ratios at smaller radial distances during southward IMF periods. In this paper, we theoretically estimate how patchy magnetic reconnection electric field accelerates ions and electrons differently. If both ions and electrons are non-adiabatically accelerated merely once in a single reconnection, the temperature ratio would be preserved. However, the ratio would not be preserved if particles are accelerated multiple times. As particles are transported earthward by BBFs after reconnection, the reflection of electrons from the ionosphere and subsequently multiple non-adiabatic accelerations at the reconnection site can explain the observed lower temperature ratios closer to the Earth.

Chuxin Chen and Chih-Ping Wang
Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Chuxin Chen and Chih-Ping Wang
Chuxin Chen and Chih-Ping Wang
Viewed
Total article views: 332 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
283 42 7 332 5 5
  • HTML: 283
  • PDF: 42
  • XML: 7
  • Total: 332
  • BibTeX: 5
  • EndNote: 5
Views and downloads (calculated since 30 May 2018)
Cumulative views and downloads (calculated since 30 May 2018)
Viewed (geographical distribution)
Total article views: 332 (including HTML, PDF, and XML) Thereof 331 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited
Saved
No saved metrics found.
Discussed
No discussed metrics found.
Latest update: 21 Oct 2018
Publications Copernicus
Download
Short summary
The ion to electron temperature ratio is a good indicator of the processes involved in the plasma sheet. We theoretically estimate how patchy magnetic reconnection electric field accelerates ions and electrons differently. As particles are transported earthward by BBFs after reconnection, the reflection of electrons from the ionosphere and subsequently multiple non-adiabatic accelerations at the reconnection site can explain the observed lower temperature ratios closer to the Earth.
The ion to electron temperature ratio is a good indicator of the processes involved in the...
Citation
Share