Magnetic shadowing of high energy ions at Mars: Comparison of SLED/Phobos-2 observations and hybrid model simulations

Details Magnetic shadowing of high energy ions at Mars: Comparison of SLED/Phobos-2 observations and hybrid model simulations Magnetic shadowing of high energy ions at Mars: Comparison of SLED/Phobos-2 observations and hybrid model simulations

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..462m&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.462

Computer Science

Scientific paper

Energetic particle data recorded by the SLED instrument aboard Phobos-2 while in circular orbit about Mars in March, 1989 showed the presence of magnetic shadowing. A 3-D, self-consistent, hybrid model (HYB-Mars) supplemented by test particle simulations has been developed to study the response of the Martian plasma environment to the solar disturbances concerned and to interpret the SLED observations. During Extreme Solar Events, the magnetic and electric fields as well as the properties of high energy ions present at Mars can be derived from HYB-Mars. It has already been shown [1] that the hybrid modeling results in magnetic shadowing which is qualitatively similar to that recorded by SLED at Mars while demonstrating in addition that the size of the shadow decreases with the energy of the ions in the range analyzed (50 keV to 3.2 MeV). In this presentation the initial qualitative study outlined above has been extended to provide a more quantitative analysis by comparing the observed and the simulated fluxes of high energy ions at Mars during Extreme Flaring.

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