Transverse ion energization and wave emissions observed by the Freja satellite

1994 ◽  
Vol 21 (17) ◽  
pp. 1915-1918 ◽  
Author(s):  
Mats André ◽  
Patrik Norqvist ◽  
Andris Vaivads ◽  
Lars Eliasson ◽  
Olle Norberg ◽  
...  
Keyword(s):  
Ion Energization

Regions of ion energization observed during the Galaxy-15 substorm with TWINS

2014 ◽  
Vol 119 (10) ◽  
pp. 8274-8287 ◽  
Author(s):  
A. M. Keesee ◽  
M. W. Chen ◽  
E. E. Scime ◽  
A. T. Y. Lui
Keyword(s):  
The Galaxy ◽  
Ion Energization

scholarly journals Solar-minimum quiet time ion energization and outflow in dynamic boundary related coordinates

2008 ◽  
Vol 113 (A7) ◽  
pp. n/a-n/a ◽  
Author(s):  
W. K. Peterson ◽  
L. Andersson ◽  
B. C. Callahan ◽  
H. L. Collin ◽  
J. D. Scudder ◽  
...  
Keyword(s):  
Solar Minimum ◽  
Quiet Time ◽  
Dynamic Boundary ◽  
Ion Energization

Ion Energization and Escape on Mars and Venus

2011 ◽  
Vol 162 (1-4) ◽  
pp. 173-211 ◽  
Author(s):  
E. Dubinin ◽  
M. Fraenz ◽  
A. Fedorov ◽  
R. Lundin ◽  
N. Edberg ◽  
...  
Keyword(s):  
Ion Energization

scholarly journals EXOS-D Observations of Thermal Ion Energy Distributions in Transverse Ion Energization Regions.

1995 ◽  
Vol 47 (11) ◽  
pp. 1161-1169 ◽  
Author(s):  
Shigeto Watanabe ◽  
Takumi Abe ◽  
Eiichi Sagawa ◽  
Brian A. Whalen ◽  
Andrew W. Yau ◽  
...  
Keyword(s):  
Energy Distributions ◽  
Ion Energy ◽  
Ion Energization ◽  
Ion Energy Distributions

scholarly journals Juno Observations of Heavy Ion Energization During Transient Dipolarizations in Jupiter Magnetotail

2020 ◽  
Vol 125 (5) ◽  
Author(s):  
A. V. Artemyev ◽  
G. Clark ◽  
B. Mauk ◽  
M. F. Vogt ◽  
X.‐J. Zhang
Keyword(s):  
Heavy Ion ◽  
Ion Energization

scholarly journals The structure of high altitude O<sup>+</sup> energization and outflow: a case study

2004 ◽  
Vol 22 (7) ◽  
pp. 2497-2506 ◽  
Author(s):  
H. Nilsson ◽  
S. Joko ◽  
R. Lundin ◽  
H. Rème ◽  
J.-A. Sauvaud ◽  
...  
Keyword(s):  
High Altitude ◽  
Flow Direction ◽  
Correlation Coefficients ◽  
Dispersion Analysis ◽  
Observation Point ◽  
Ion Density ◽  
Oxygen Ion ◽  
Ion Energization ◽  
Upstream Flow

Abstract. Multi-spacecraft observations from the CIS ion spectrometers on board the Cluster spacecraft have been used to study the structure of high-altitude oxygen ion energization and outflow. A case study taken from 12 April 2004 is discussed in more detail. In this case the spacecraft crossed the polar cap, mantle and high-altitude cusp region at altitudes between 4RE and 8RE and 2 of the spacecraft provided data. The oxygen ions were seen as a beam with narrow energy distribution, and increasing field-aligned velocity and temperature at higher altitude further in the upstream flow direction. The peak O+ energy was typically just above the highest energy of observed protons. The observed energies reached the upper limit of the CIS ion spectrometer, i.e. 38keV. Moment data from the spacecraft have been cross-correlated to determine cross-correlation coefficients, as well as the phase delay between the spacecraft. Structures in ion density, temperature and field-aligned flow appear to drift with the observed field-perpendicular drift. This, together with a velocity dispersion analysis, indicates that much of the structure can be explained by transverse heating well below the spacecraft. However, temperature isotropy and the particle flux as a function of field-aligned velocity are inconsistent with a single altitude Maxwellian source. Heating over extended altitude intervals, possibly all the way up to the observation point, seem consistent with the observations.

scholarly journals Ion dynamics during compression of Mercury's magnetosphere

2010 ◽  
Vol 28 (8) ◽  
pp. 1467-1474 ◽  
Author(s):  
D. C. Delcourt ◽  
T. E. Moore ◽  
M.-C. H. Fok
Keyword(s):  
Magnetic Field ◽  
Energetic Material ◽  
Three Dimensional ◽  
Wind Pressure ◽  
Field Variation ◽  
Ion Dynamics ◽  
Ion Energization ◽  
Particle Simulations ◽  
Solar Wind Pressure ◽  
Planetary Magnetic Field

Abstract. Because of the small planetary magnetic field as well as proximity to the Sun that leads to enhanced solar wind pressure as compared to Earth, the magnetosphere of Mercury is very dynamical and at times subjected to prominent compression. We investigate the dynamics of magnetospheric ions during such compression events. Using three-dimensional single-particle simulations, we show that the electric field induced by the time varying magnetic field can lead to significant ion energization, up to several hundreds of eVs or a few keVs. This energization occurs in a nonadiabatic manner, being characterized by large enhancements of the ion magnetic moment and bunching in gyration phase. It is obtained when the ion cyclotron period is comparable to the field variation time scale. This condition for nonadiabatic heating is realized in distinct regions of space for ions with different mass-to-charge ratios. During compression of Mercury's magnetosphere, heavy ions originating from the planetary exosphere may be subjected to such an abrupt energization, leading to loading of the magnetospheric lobes with energetic material.

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