Modeling of Oxygen ions in inner plasma sheet during substorms

Details Modeling of Oxygen ions in inner plasma sheet during substorms Modeling of Oxygen ions in inner plasma sheet during substorms

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsm43c..02j&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #SM43C-02

Physics

2753 Numerical Modeling, 2778 Ring Current, 2788 Storms And Substorms

Scientific paper

The HENA instrument on IMAGE has observed that during substorm onset significant increases in the Oxygen energetic neutral atom (ENA) signature, while relatively small change in the Hydrogen signature. To study this phenomenon, we use a particle trajectory simulation developed by Delcourt to study the response of magnetospheric Oxygen ions to dipolarization of the geomagnetic field. Geomagnetic dipolarization is represented by temporal interpolation of the Tsyganenko 89 model between high and low levels of magnetic activity. We compare analysis of HENA measurements and simulation results.

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