Physics – Plasma Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm21d..05s&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SM21D-05
Physics
Plasma Physics
[2723] Magnetospheric Physics / Magnetic Reconnection, [2790] Magnetospheric Physics / Substorms, [7526] Solar Physics, Astrophysics, And Astronomy / Magnetic Reconnection, [7835] Space Plasma Physics / Magnetic Reconnection
Scientific paper
Although magnetic reconnection is known to play an important role in both magnetospheric substorms and solar flares, the peak propagation speed of energy away from the reconnection site is not well established. While bulk flows are limited to the Alfvén speed, the quadrupolar Hall magnetic field is associated with a kinetic Alfvén wave (KAW) with a super-Alfvénic parallel propagation speed and substantial Poynting energy flux(1). We extend this work with large scale reconnection simulations of comparable size to the near Earth magnetotail, focussing on the modification of the KAW as it propagates towards Earth and the relative energy budget between Poynting flux and energetic electrons. (1) Shay, M. A. et al., Super-Alfvénic Propagation of Reconnection Signatures and Poynting Flux, Physical Review Letters, 107, 065001, 2011.
Drake James F.
Eastwood Jonathan P.
Shay Michael A.
Swisdak Michael
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