Signatures of Heavy Ion Reconnection in the Magnetotail

Details Signatures of Heavy Ion Reconnection in the Magnetotail Signatures of Heavy Ion Reconnection in the Magnetotail

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmsm41b..03s&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SM41B-03

Physics

7835 Magnetic Reconnection (2723, 7526), 2723 Magnetic Reconnection (7526, 7835), 2744 Magnetotail

Scientific paper

Reconnection plays an important role in magnetospheric dynamics, but most studies of reconnection are limited to plasmas with only 2 species: electrons and ions. During active periods, however, the number density of oxygen atoms in the magnetotail can exceed that of the protons. Recent work has shown that if the density of oxygen atoms are high enough, the reconnection dissipation region becomes more complicated, with kinetic length scales associated with the heavy ion inertial length. In this study, we will present 3-species reconnection simulations with appropriate parameters for the magnetotail at active times. The focus is on gaining an understanding of how the signatures of heavy ion reconnection are modified as the heavy ion density changes. In addition, since oxygen atoms tend to be more numerous in the lobes, we will also present 3 species simulations with a higher oxygen concentration outside the neutral sheet.

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