Formation of shocklets under different conditions of the solar wind flow

Details Formation of shocklets under different conditions of the solar wind flow Formation of shocklets under different conditions of the solar wind flow

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....9263t&link_type=abstract

EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #9263

Computer Science

Scientific paper

In this paper we shall focus on the study of the multiple structure of the bow shock formed in front of obstacles under different conditions of the solar wind flow using hybrid code (particle protons, electrons as massles fluid). The existence of shocklets (multiple shocks) is well known from observations of comets and it was also noticed in the Martian bow shock in measurements of Phobos spacecraft (not seen in Viking observations). The shocklets structure has been subject of several two and three dimensional numerical studies of considering mainly unmagnetized obstacles in the solar wind using hybrid code with different spatial resolution. We shall carry out primarily two dimensional hybrid simulations of the interaction between unmagnetized obstacles embeded into the solar wind using high spatial resolution. We shall examine and discuss the overal structure of the bow shock under different solar wind conditions (different speed of the solar wind flow, the influence of the ratio between thermal and magnetic pressure of the proton population, and eventually the size of the obstacle. Optionally we shall use three dimensional code to compare results with the results of the two dimensional case.

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