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Title: Two-stage bulk electron heating in the diffusion region of anti-parallel symmetric reconnection

Electron bulk energization in the diffusion region during anti-parallel symmetric reconnection entails two stages. First, the inflowing electrons are adiabatically trapped and energized by an ambipolar parallel electric field. Next, the electrons gain energy from the reconnection electric field as they undergo meandering motion. These collisionless mechanisms have been described previously, and they lead to highly structured electron velocity distributions. Furthermore, a simplified control-volume analysis gives estimates for how the net effective heating scales with the upstream plasma conditions in agreement with fully kinetic simulations and spacecraft observations.
Authors:
ORCiD logo [1] ;  [2] ; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of Wisconsin, Madison, WI (United States)
Publication Date:
Report Number(s):
LA-UR-15-25723
Journal ID: ISSN 1070-664X
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 23; Journal Issue: 10; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Laboratory Directed Research and Development (LDRD) Program
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; heliospheric and magnetospheric physics
OSTI Identifier:
1356126

Le, Ari Yitzchak, Egedal, Jan, and Daughton, William Scott. Two-stage bulk electron heating in the diffusion region of anti-parallel symmetric reconnection. United States: N. p., Web. doi:10.1063/1.4964768.
Le, Ari Yitzchak, Egedal, Jan, & Daughton, William Scott. Two-stage bulk electron heating in the diffusion region of anti-parallel symmetric reconnection. United States. doi:10.1063/1.4964768.
Le, Ari Yitzchak, Egedal, Jan, and Daughton, William Scott. 2016. "Two-stage bulk electron heating in the diffusion region of anti-parallel symmetric reconnection". United States. doi:10.1063/1.4964768. https://www.osti.gov/servlets/purl/1356126.
@article{osti_1356126,
title = {Two-stage bulk electron heating in the diffusion region of anti-parallel symmetric reconnection},
author = {Le, Ari Yitzchak and Egedal, Jan and Daughton, William Scott},
abstractNote = {Electron bulk energization in the diffusion region during anti-parallel symmetric reconnection entails two stages. First, the inflowing electrons are adiabatically trapped and energized by an ambipolar parallel electric field. Next, the electrons gain energy from the reconnection electric field as they undergo meandering motion. These collisionless mechanisms have been described previously, and they lead to highly structured electron velocity distributions. Furthermore, a simplified control-volume analysis gives estimates for how the net effective heating scales with the upstream plasma conditions in agreement with fully kinetic simulations and spacecraft observations.},
doi = {10.1063/1.4964768},
journal = {Physics of Plasmas},
number = 10,
volume = 23,
place = {United States},
year = {2016},
month = {10}
}