On temporal variation of reconnection rate and X line electric field structure
نویسندگان
چکیده
منابع مشابه
New electric field in asymmetric magnetic reconnection.
We present a theory and numerical evidence for the existence of a previously unexplored in-plane electric field in collisionless asymmetric magnetic reconnection. This electric field, dubbed the "Larmor electric field," is associated with finite Larmor radius effects and is distinct from the known Hall electric field. Potentially, it could be an important indicator for the upcoming Magnetospher...
متن کاملInfluence of the Hall effect on the reconnection rate at line-tied magnetic X-points*1mm
Context. The role of the Hall term in magnetic reconnection at line-tied planar magnetic X-points is explored. Aims. The goal is to determine the reconnection scaling laws and to investigate how the reconnection rate depends on the size of the system in Hall magnetohydrodynamics (MHD). Methods. The evolution of reconnective disturbances is determined numerically by solving the linearized compre...
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Magnetic reconnection is believed to be the prime mechanism to trigger solar flares and accelerate electrons up to energies of MeV. In the classical two-dimensional reconnection model, the separation motion of chromospheric ribbons manifests the successive reconnection that takes place higher up in the corona. Meanwhile, downward traveling energetic electrons bombard the dense chromosphere and ...
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We propose a criterion for identifying the orientation of the X-line when two regions of plasma with arbitrary densities, temperatures, and magnetic fields undergo reconnection. The X-line points in the direction that maximizes the (suitably-defined) Alfvén speed characterizing the reconnection outflow. For many situations a good approximation is that the X-line bisects the angle formed by the ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 2016
ISSN: 2169-9380
DOI: 10.1002/2016ja022896