[P-EM12] Study of coupling processes in solar-terrestrial system

[PEM12-P20] Magnetosheath plasma jets and revision of magnetopause models

*ALEXEI DMITRIEV^1,2, Sayantan Ghosh¹, Bhavana Lalchand³ (1.Department of Space Sciences and Engineering, National Central University, Taoyuan City 32001, Taiwan, 2.Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, Russia, 3.Graduate Institute of Astronomy, National Central University, Taoyuan City 32001, Taiwan)

Keywords:solar wind – magnetosphere coupling, magnetopause, magnetosheath jets

The Earth’s magnetopause, the shape and size of which is determined by geomagnetic field configurations, and driven by external factors such as the solar wind and the interplanetary magnetic field, has in the recent times been known to be also affected by fast magnetosheath jets. These jets cause strong undulations of the magnetopause consisting of indentations which are surrounded by expansions. Taking into account the effect of these jets, we present a revised model of the magnetopause, in accordance with the latest experimental data on magnetopause crossings. This revised model will make a more precise determination of the magnetopause shape and location possible.
PACS: 47.27.Wg; 94.05.Sd; 94.30.cq; 94.30.cv; 92.60.hx