Dynamic magnetic island coalescence and associated electron acceleration

2011 ◽  
Vol 18 (2) ◽  
pp. 022903 ◽  
Author(s):  
Kentaro G. Tanaka ◽  
Masaki Fujimoto ◽  
Sarah V. Badman ◽  
Iku Shinohara
Keyword(s):  
Electron Acceleration ◽  
Magnetic Island ◽  
Island Coalescence

Electron acceleration via magnetic island coalescence

2009 ◽  
Author(s):  
I. Shinohara ◽  
T. Yumura ◽  
K. G. Tanaka ◽  
M. Fujimoto ◽  
Masfumi Hirahara ◽  
...  
Keyword(s):  
Electron Acceleration ◽  
Magnetic Island ◽  
Island Coalescence

scholarly journals On the electron agyrotropy during rapid asymmetric magnetic island coalescence in presence of a guide field

2016 ◽  
Vol 43 (15) ◽  
pp. 7840-7849 ◽  
Author(s):  
E. Cazzola ◽  
M. E. Innocenti ◽  
M. V. Goldman ◽  
D. L. Newman ◽  
S. Markidis ◽  
...  
Keyword(s):  
Magnetic Island ◽  
Guide Field ◽  
Island Coalescence

scholarly journals Impact of compressibility and a guide field on Fermi acceleration during magnetic island coalescence

2017 ◽  
Vol 24 (6) ◽  
pp. 062906 ◽  
Author(s):  
P. Montag ◽  
J. Egedal ◽  
E. Lichko ◽  
B. Wetherton
Keyword(s):  
Fermi Acceleration ◽  
Magnetic Island ◽  
Guide Field ◽  
Island Coalescence

Electron energization during magnetic island coalescence

2012 ◽  
Vol 19 (7) ◽  
pp. 072120 ◽  
Author(s):  
A. Le ◽  
H. Karimabadi ◽  
J. Egedal ◽  
V. Roytershteyn ◽  
W. Daughton
Keyword(s):  
Magnetic Island ◽  
Island Coalescence

scholarly journals Comparisons of electron acceleration efficiency among different structures during magnetic reconnection: a Cluster multicase study

2015 ◽  
Vol 33 (12) ◽  
pp. 1469-1478 ◽  
Author(s):  
M. Zhou ◽  
T. Li ◽  
X. Deng ◽  
S. Huang ◽  
H. Li
Keyword(s):  
Magnetic Reconnection ◽  
Current Sheet ◽  
Flux Ratio ◽  
Electron Acceleration ◽  
Maximum Efficiency ◽  
Magnetic Island ◽  
Specific Sequence ◽  
Energetic Electrons ◽  
Thin Current Sheet ◽  
Magnetotail Reconnection

Abstract. Magnetic reconnection has long been believed to be an efficient engine for energetic electrons production. Four different structures have been proposed for electrons being energized: flux pileup region, density cavity located around the separatrix, magnetic island and thin current sheet. In this paper, we compare the electron acceleration efficiency among these structures based on 12 magnetotail reconnection events observed by the Cluster spacecraft in 2001–2006. We used the flux ratio between the energetic electrons (> 50 keV) and lower energy electrons (< 26 keV) to quantify the electron acceleration efficiency. We do not find any specific sequence in which electrons are accelerated within these structures, though the flux pileup region, magnetic island and thin current sheet have higher probabilities to reach the maximum efficiency among the four structures than the density cavity. However, the most efficient electron energization usually occurs outside these structures. We suggest that other structures may also play important roles in energizing electrons. Our results could provide important constraints for the further modeling of electron acceleration during magnetic reconnection.

scholarly journals ELECTRON ACCELERATION BY MULTI-ISLAND COALESCENCE

2010 ◽  
Vol 714 (1) ◽  
pp. 915-926 ◽  
Author(s):  
M. Oka ◽  
T.-D. Phan ◽  
S. Krucker ◽  
M. Fujimoto ◽  
I. Shinohara
Keyword(s):  
Electron Acceleration ◽  
Island Coalescence
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