On the Energy Conversion Rate during Collisionless Magnetic Reconnection
نویسندگان
چکیده
منابع مشابه
Structure of the dissipation region during collisionless magnetic reconnection
Collisionless magnetic reconnection isstudied using a 2 1/2-dimensional hybrid code including Hall dynamics and electron inertia. The simulations reveal that the dissipation region develops a two-scale structure: an inner electron region and an outer ion region. Close to the X line is a region with a scale of the electron collisionless kin depth, where the electron flows completely dominate tho...
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Magnetic reconnection is a driving engine of solar flares, stellar flares, and quite probably bursty events in high-energy astrophysical sites. The reconnection process is driven by a small-scale “dissipation region” surrounding the reconnection point (X-point), at which a plasma ideal condition breaks down. Recently, kinetic particle-in-cell (PIC) simulations have revealed that the electron id...
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Particle simulations and analytic arguments are presented to demonstrate that the electron dissipation region, including the physics which breaks the frozen-in condition, does not affect the rate of reconnection in collisionless plasma. The result is a general consequence of the quadratic nature of the dispersion character of whistler waves, which control the plasma dynamics at small scales. Th...
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A new set of reduced equations governing two-dimensional, two-fluid, collisionless magnetic reconnection with arbitrary guide-field is derived. These equations represent a significant advance in magnetic reconnection theory, since the existing reduced equations used to investigate collisionless reconnection are only valid in the large guide-field limit. The new equations are used to calculate t...
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*Correspondence: Rudolf A. Treumann, International Space Science Institute Bern, Hallerstrasse 6, CH-3012 Bern, Switzerland e-mail: [email protected] Magnetic reconnection, the merging of oppositely directed magnetic fields that leads to field reconfiguration, plasma heating, jetting and acceleration, is one of the most celebrated processes in collisionless plasmas. It requires the violation...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2019
ISSN: 2041-8213
DOI: 10.3847/2041-8213/ab40c1