Dawnside particle injection caused by sudden enhancement of solar wind dynamic pressure

Details Dawnside particle injection caused by sudden enhancement of solar wind dynamic pressure Dawnside particle injection caused by sudden enhancement of solar wind dynamic pressure

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jastp..70.1995h&link_type=abstract

Journal of Atmospheric and Solar-Terrestrial Physics, Volume 70, Issue 16, p. 1995-1999.

Physics

Sudden Enhancement Of The Solar Wind Dynamic Pressure, Dawn-Side Particle Injection, Proton Drift Echoes

Scientific paper

Here we present the first evidence for particle injection in the dawn-side equatorial plane caused by a sudden enhancement of the solar wind dynamic pressure (SEPdyn). The observational results demonstrate that the SEPdyn caused two effects: (1) instantaneous particle energization in the dayside, and (2) particle injection in the dawn side at approximately 7 min later. The former effect has been suggested to be energization of the preexisting particles by the sudden compression of the magnetosphere. We argue that the latter effect was due to acceleration of relatively hot ions in the dawn-side plasma sheet by a bipolar electric field caused by the SEPdyn.

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