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Title: Ion Behaviors in the Reconnection Diffusion Region of a Corrugated Magnetotail Current Sheet

Abstract

The current sheet structure and ion behaviors in a magnetotail reconnection diffusion region are investigated. The multispacecraft analysis suggests a corrugated current sheet structure, interpreted as due to a flapping motion that propagates along geocentric solar magnetospheric along the +y direction in the Geocentric Solar Magnetospheric (GSM) coordinate. The electric field (E ) and ion distributions have similarities with those in a planar current sheet. Energetic ions move along the current direction, suggesting the acceleration by the observed reconnection E during the meandering motion. Counterstreaming ions along the current sheet normal suggest the acceleration by the Hall E that is observed to be the dominant component. However, at certain locations, E and counterstreaming ions significantly deviate from the local normal direction, and more than one pair of counterstreaming populations exist, possibly because the corrugated current sheet enables ions entering the current sheet at different locations with different velocities to mix together.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [2]
  1. Astronomy DepartmentUniversity of Maryland College Park MD USA, NASA Goddard Space Flight Center Greenbelt MD USA
  2. NASA Goddard Space Flight Center Greenbelt MD USA
  3. Department of Physics and TechnologyUniversity of Bergen Bergen Norway, Southwest Research Institute San Antonio San Antonio TX USA
Publication Date:
Research Org.:
Univ. of Maryland, College Park, MD (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Science Foundation (NSF); National Aeronautics and Space Administration (NASA)
OSTI Identifier:
1515080
Alternate Identifier(s):
OSTI ID: 1515084; OSTI ID: 1612462
Grant/Contract Number:  
SC0016278; AGS-1619584; AGS-1552142; 80NSSC18K1369; 80NSSC17K0012
Resource Type:
Published Article
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Name: Geophysical Research Letters Journal Volume: 46 Journal Issue: 10; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; geology; magnetic reconnection; ion acceleration; current sheet flapping

Citation Formats

Wang, Shan, Chen, Li‐Jen, Bessho, Naoki, Hesse, Michael, Giles, Barbara L., and Moore, Thomas E. Ion Behaviors in the Reconnection Diffusion Region of a Corrugated Magnetotail Current Sheet. United States: N. p., 2019. Web. https://doi.org/10.1029/2019GL082226.
Wang, Shan, Chen, Li‐Jen, Bessho, Naoki, Hesse, Michael, Giles, Barbara L., & Moore, Thomas E. Ion Behaviors in the Reconnection Diffusion Region of a Corrugated Magnetotail Current Sheet. United States. https://doi.org/10.1029/2019GL082226
Wang, Shan, Chen, Li‐Jen, Bessho, Naoki, Hesse, Michael, Giles, Barbara L., and Moore, Thomas E. Tue . "Ion Behaviors in the Reconnection Diffusion Region of a Corrugated Magnetotail Current Sheet". United States. https://doi.org/10.1029/2019GL082226.
@article{osti_1515080,
title = {Ion Behaviors in the Reconnection Diffusion Region of a Corrugated Magnetotail Current Sheet},
author = {Wang, Shan and Chen, Li‐Jen and Bessho, Naoki and Hesse, Michael and Giles, Barbara L. and Moore, Thomas E.},
abstractNote = {The current sheet structure and ion behaviors in a magnetotail reconnection diffusion region are investigated. The multispacecraft analysis suggests a corrugated current sheet structure, interpreted as due to a flapping motion that propagates along geocentric solar magnetospheric along the +y direction in the Geocentric Solar Magnetospheric (GSM) coordinate. The electric field (E ) and ion distributions have similarities with those in a planar current sheet. Energetic ions move along the current direction, suggesting the acceleration by the observed reconnection E during the meandering motion. Counterstreaming ions along the current sheet normal suggest the acceleration by the Hall E that is observed to be the dominant component. However, at certain locations, E and counterstreaming ions significantly deviate from the local normal direction, and more than one pair of counterstreaming populations exist, possibly because the corrugated current sheet enables ions entering the current sheet at different locations with different velocities to mix together.},
doi = {10.1029/2019GL082226},
journal = {Geophysical Research Letters},
number = 10,
volume = 46,
place = {United States},
year = {2019},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1029/2019GL082226

Citation Metrics:
Cited by: 1 work
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