scholarly journals Auroral Hiss Emissions During Cassini's Grand Finale: Diverse Electrodynamic Interactions Between Saturn and Its Rings

2018 ◽  
Vol 45 (14) ◽  
pp. 6782-6789 ◽  
Author(s):  
A. H. Sulaiman ◽  
W. S. Kurth ◽  
G. B. Hospodarsky ◽  
T. F. Averkamp ◽  
A. M. Persoon ◽  
...  
Keyword(s):  
Auroral Hiss

scholarly journals Low-frequency impulsive auroral hiss observations at high geomagnetic latitudes

1998 ◽  
Vol 103 (A9) ◽  
pp. 20459-20468 ◽  
Author(s):  
J. LaBelle ◽  
A. T. Weatherwax ◽  
J. Perring ◽  
E. Walsh ◽  
M. L. Trimpi ◽  
...  
Keyword(s):  
Low Frequency ◽  
Auroral Hiss

Quasiperiodic Saturn Auroral Hiss Observed During a Cassini Proximal Orbit

2020 ◽  
Vol 125 (1) ◽  
Author(s):  
J. D. Menietti ◽  
B. Palmaerts ◽  
J. Zahlava ◽  
T. F. Averkamp ◽  
J. B. Groene ◽  
...  
Keyword(s):  
Auroral Hiss

Multipayload interferometric wave vector determination of auroral hiss

2012 ◽  
Vol 117 (A2) ◽  
pp. n/a-n/a ◽  
Author(s):  
E. T. Lundberg ◽  
P. M. Kintner ◽  
S. P. Powell ◽  
K. A. Lynch
Keyword(s):  
Wave Vector ◽  
Auroral Hiss

Estimating the Size and Location of the Region of Scattering of the Auroral Hiss, According to Data from High-Latitude Observations at Three Separated Places

2021 ◽  
Vol 85 (3) ◽  
pp. 287-291
Author(s):  
A. S. Nikitenko ◽  
O. M. Lebed ◽  
Yu. V. Fedorenko ◽  
J. Manninen ◽  
N. G. Kleimenova ◽  
...  
Keyword(s):  
High Latitude ◽  
Auroral Hiss

scholarly journals Electron beams as the source of whistler-mode auroral hiss at Saturn

2010 ◽  
Vol 37 (9) ◽  
pp. n/a-n/a ◽  
Author(s):  
A. J. Kopf ◽  
D. A. Gurnett ◽  
J. D. Menietti ◽  
P. Schippers ◽  
C. S. Arridge ◽  
...  
Keyword(s):  
Electron Beams ◽  
Whistler Mode ◽  
Auroral Hiss

Ion gyrofrequency phenomena observed on Whistlers, auroral hiss and ELF hiss

1976 ◽  
Vol 38 (6) ◽  
pp. 677-682 ◽  
Author(s):  
R.E. Horita ◽  
Lane Friesen ◽  
A.W.Y. Chan
Keyword(s):  
Auroral Hiss

scholarly journals Whistler-Langmuir oscillitons and their relation to auroral hiss

2011 ◽  
Vol 29 (10) ◽  
pp. 1739-1753 ◽  
Author(s):  
K. Sauer ◽  
R. D. Sydora
Keyword(s):  
Phase Velocity ◽  
Source Region ◽  
Whistler Wave ◽  
Plasma Radiation ◽  
Wave Number ◽  
Lower Mode ◽  
Planetary Magnetospheres ◽  
Relativistic Fluid ◽  
Auroral Hiss ◽  
New Type

Abstract. A new type of oscilliton (soliton with superimposed spatial oscillations) is described which arises in plasmas if the electron cyclotron frequency Ωe is larger than the electron plasma frequency ωe, which is a typical situation for auroral regions in planetary magnetospheres. Both high-frequency modes of concern, the Langmuir and the whistler wave, are completely decoupled if they propagate parallel to the magnetic field. However, for oblique propagation two mixed modes are created with longitudinal and transverse electric field components. The lower mode (in the literature commonly called the whistler mode, e.g. Gurnett et al., 1983) has whistler wave characteristics at small wave numbers and asymptotically transforms into the Langmuir mode. As a consequence of the coupling between these two modes, with different phase velocity dependence, a maximum in phase velocity appears at finite wave number. The occurrence of such a particular point where phase and group velocity coincide creates the condition for the existence of a new type of oscillating nonlinear stationary structure, which we call the whistler-Langmuir (WL) oscilliton. After determining, by means of stationary dispersion theory, the parameter regime in which WL oscillitons exist, their spatial profiles are calculated within the framework of cold (non-relativistic) fluid theory. Particle-in-cell (PIC) simulations are used to demonstrate the formation of WL oscillitons which seem to play an important role in understanding electron beam-excited plasma radiation that is observed as auroral hiss in planetary magnetospheres far away from the source region.

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