scholarly journals Nonthermal Limit of Monoenergetic Precipitation in the Auroral Acceleration Region

2018 ◽  
Vol 45 (19) ◽  
pp. 10,167-10,176 ◽  
Author(s):  
Spencer M. Hatch ◽  
Christopher C. Chaston ◽  
James LaBelle
Keyword(s):  
Acceleration Region ◽  
Auroral Acceleration Region

Electron Energy Interplay in the Geomagnetic Trap Below the Auroral Acceleration Region

2021 ◽  
Vol 126 (5) ◽  
Author(s):  
George V. Khazanov ◽  
Alex Glocer ◽  
Mike Chu
Keyword(s):  
Electron Energy ◽  
Acceleration Region ◽  
Auroral Acceleration Region

scholarly journals In situ observations of density cavities extending above the auroral acceleration region

2014 ◽  
Vol 119 (7) ◽  
pp. 5286-5294 ◽  
Author(s):  
L. Alm ◽  
G. T. Marklund ◽  
T. Karlsson
Keyword(s):  
Acceleration Region ◽  
Auroral Acceleration Region ◽  
In Situ Observations

What determines the latitudinal extent of the auroral acceleration region?

1993 ◽  
Vol 55 (8) ◽  
pp. 1171-1184 ◽  
Author(s):  
J. Birn ◽  
M. Hesse ◽  
K. Schindler
Keyword(s):  
Acceleration Region ◽  
Auroral Acceleration Region

scholarly journals Reflection and transmission of Alfvén waves at the auroral acceleration region

1998 ◽  
Vol 25 (3) ◽  
pp. 277-280 ◽  
Author(s):  
J. Vogt ◽  
G. Haerendel
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Acceleration Region ◽  
Reflection And Transmission ◽  
Auroral Acceleration Region

Particle acceleration mechanisms in the auroral acceleration region

1992 ◽  
Vol 20 (6) ◽  
pp. 740-744 ◽  
Author(s):  
M. Gedalin ◽  
W. Peter
Keyword(s):  
Particle Acceleration ◽  
Acceleration Region ◽  
Auroral Acceleration Region

scholarly journals Temporal evolution and electric potential structure of the auroral acceleration region from multispacecraft measurements

2012 ◽  
Vol 117 (A12) ◽  
pp. n/a-n/a ◽  
Author(s):  
C. Forsyth ◽  
A. N. Fazakerley ◽  
A. P. Walsh ◽  
C. E. J. Watt ◽  
K. J. Garza ◽  
...  
Keyword(s):  
Electric Potential ◽  
Temporal Evolution ◽  
Acceleration Region ◽  
Auroral Acceleration Region ◽  
Potential Structure

scholarly journals <i>Letter to the Editor</i> Low-frequency electric field fluctuations and field-aligned electron beams around the edge of an auroral acceleration region

2001 ◽  
Vol 19 (3) ◽  
pp. 389-393 ◽  
Author(s):  
W. Miyake ◽  
R. Yoshioka ◽  
A. Matsuoka ◽  
T. Mukai ◽  
T. Nagatsuma
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Electron Beams ◽  
Low Frequency ◽  
Static Field ◽  
Acceleration Region ◽  
Auroral Acceleration Region ◽  
Field Fluctuations ◽  
Current Region ◽  
Frequency Electric Field

Abstract. Electron beams narrowly collimated to the magnetic field line were observed continuously from a down-ward current region to an auroral acceleration region (i.e., upward current region). They were well correlated with low-frequency electric field fluctuations in the auroral acceleration region as well as in the adjacent downward current region. Magnetic field fluctuations were found only in the downward current region. The analysis suggests that static field-aligned electric fields are not fully responsible for the filed-aligned electron acceleration; the ac electric field, presumably associated with Alfvenic fluctuations, should also be involved in the acceleration of ionospheric electrons.Key words. Ionosphere (particle acceleration) – Magnetospheric physics (auroral phenomena; magnetosphere-ionosphere interactions)

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