First IBEX observations of the terrestrial plasma sheet and a possible disconnection event

Details First IBEX observations of the terrestrial plasma sheet and a possible disconnection event First IBEX observations of the terrestrial plasma sheet and a possible disconnection event

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011jgra..11602211m&link_type=abstract

Journal of Geophysical Research, Volume 116, Issue A2, CiteID A02211

Physics

5

Magnetospheric Physics: Plasma Sheet, Magnetospheric Physics: Magnetic Reconnection (7526, 7835), Magnetospheric Physics: Magnetotail, Magnetospheric Physics: Magnetospheric Configuration And Dynamics, Magnetospheric Physics: Solar Wind/Magnetosphere Interactions

Scientific paper

The Interstellar Boundary Explorer (IBEX) mission has recently provided the first all-sky maps of energetic neutral atoms (ENAs) emitted from the edge of the heliosphere as well as the first observations of ENAs from the Moon and from the magnetosheath stagnation region at the nose of the magnetosphere. This study provides the first IBEX images of the ENA emissions from the nightside magnetosphere and plasma sheet. We show images from two IBEX orbits: one that displays typical plasma sheet emissions, which correlate reasonably well with a model magnetic field, and a second that shows a significant intensification that may indicate a near-Earth (˜10 RE behind the Earth) disconnection event. IBEX observations from ˜0.5-6 keV indicate the simultaneous addition of both a hot (several keV) and colder (˜700 eV) component during the intensification; if IBEX directly observed magnetic reconnection in the magnetotail, the hot component may signify the plasma energization.

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