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

Electric potential structures of auroral acceleration region border from multi-spacecraft Cluster data

2018 ◽  
Vol 61 (8) ◽  
pp. 2050-2056
Author(s):  
S. Sadeghi ◽  
M.R. Emami
Keyword(s):  
Electric Potential ◽  
Acceleration Region ◽  
Auroral Acceleration Region ◽  
Cluster Data

Temporal Evolution of Substorm‐Driven Global Alfvén Wave Power Above the Auroral Acceleration Region

2020 ◽  
Vol 125 (4) ◽  
Author(s):  
Andreas Keiling ◽  
Scott Thaller ◽  
John Dombeck ◽  
John Wygant
Keyword(s):  
Temporal Evolution ◽  
Alfven Wave ◽  
Wave Power ◽  
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

Magnetic Field Aligned Potentials as an Acceleration Mechanism at Jupiter

2021 ◽  
Author(s):  
Dave Constable ◽  
Licia Ray ◽  
Sarah Badman ◽  
Chris Arridge ◽  
Chris Lorch ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Temporal Evolution ◽  
Charged Particles ◽  
Uniform Mesh ◽  
Time Varying ◽  
Potential Structure ◽  
Field Aligned Current ◽  
Field Lines ◽  
The Magnetic Field ◽  
Insight Into

<p>Since arriving at Jupiter, Juno has observed instances of field-aligned proton and electron beams, in both the upward and downward current regions. These field-aligned beams are identified by inverted-V structures in plasma data, which indicate the presence of potential structures aligned with the magnetic field. The direction, magnitude and location of these potential structures is important, as it affects the characteristics of any resultant field-aligned current. At high latitudes, Juno has observed potentials of 100’s of kV occurring in both directions. Charged particles that are accelerated into Jupiter’s atmosphere and precipitate can excite aurora; likewise, particles accelerated away from the planet can contribute to the population of the magnetosphere.</p> <p>Using a time-varying 1-D spatial, 2-D velocity space Vlasov code, we examine magnetic field lines which extend from Jupiter into the middle magnetosphere. By applying and varying a potential difference at the ionosphere, we can gain insight into the effect these have on the plasma population, the potential structure, and plasma densities along the field line. Utilising a non-uniform mesh, additional resolution is applied in regions where particle acceleration occurs, allowing the spatial and temporal evolution of the plasma to be examined. Here, we present new results from our model, constrained, and compared with recent Juno observations, and examining both the upward and downward current regions.</p>

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
Sign in / Sign up

Export Citation Format

Share Document