scholarly journals Whistler-mode auroral hiss emissions observed near Saturn's B ring

2006 ◽  
Vol 111 (A6) ◽  
Author(s):  
L. Xin ◽  
D. A. Gurnett ◽  
O. Santolík ◽  
W. S. Kurth ◽  
G. B. Hospodarsky
Keyword(s):  
Whistler Mode ◽  
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

Low‐Latitude Whistler‐Mode and Higher‐Latitude Z‐mode Emission at Jupiter Observed by Juno

2020 ◽  
Author(s):  
J. D. Menietti ◽  
T. F. Averkamp ◽  
M. Imai ◽  
W. S. Kurth ◽  
G. B. Clark ◽  
...  
Keyword(s):  
Low Latitude ◽  
Whistler Mode

Generation of electrostatic emissions by lightning-induced whistler-mode radiation above thunderstorms

2000 ◽  
Vol 62 (15) ◽  
pp. 1393-1404 ◽  
Author(s):  
S.D Baker ◽  
M.C Kelley ◽  
C.M Swenson ◽  
J Bonnell ◽  
D.V Hahn
Keyword(s):  
Whistler Mode

scholarly journals Penetration of MeV electrons into the mesosphere accompanying pulsating aurorae

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Y. Miyoshi ◽  
K. Hosokawa ◽  
S. Kurita ◽  
S.-I. Oyama ◽  
Y. Ogawa ◽  
...  
Keyword(s):  
High Energy ◽  
Daily Basis ◽  
Maximum Energy ◽  
Energy Electron ◽  
High Energy Electron ◽  
Whistler Mode ◽  
Chorus Waves ◽  
Mesospheric Ozone ◽  
Field Lines ◽  
Eiscat Radar

AbstractPulsating aurorae (PsA) are caused by the intermittent precipitations of magnetospheric electrons (energies of a few keV to a few tens of keV) through wave-particle interactions, thereby depositing most of their energy at altitudes ~ 100 km. However, the maximum energy of precipitated electrons and its impacts on the atmosphere are unknown. Herein, we report unique observations by the European Incoherent Scatter (EISCAT) radar showing electron precipitations ranging from a few hundred keV to a few MeV during a PsA associated with a weak geomagnetic storm. Simultaneously, the Arase spacecraft has observed intense whistler-mode chorus waves at the conjugate location along magnetic field lines. A computer simulation based on the EISCAT observations shows immediate catalytic ozone depletion at the mesospheric altitudes. Since PsA occurs frequently, often in daily basis, and extends its impact over large MLT areas, we anticipate that the PsA possesses a significant forcing to the mesospheric ozone chemistry in high latitudes through high energy electron precipitations. Therefore, the generation of PsA results in the depletion of mesospheric ozone through high-energy electron precipitations caused by whistler-mode chorus waves, which are similar to the well-known effect due to solar energetic protons triggered by solar flares.

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

scholarly journals Radial variation of whistler-mode chorus: first results from the STAFF/DWP instrument on board the Double Star TC-1 spacecraft

2005 ◽  
Vol 23 (8) ◽  
pp. 2937-2942 ◽  
Author(s):  
O. Santolík ◽  
E. Macúšová ◽  
K. H. Yearby ◽  
N. Cornilleau-Wehrlin ◽  
H. StC. K. Alleyne
Keyword(s):  
Cyclotron Frequency ◽  
Power Spectra ◽  
Double Star ◽  
Electron Cyclotron ◽  
Radial Variation ◽  
Whistler Mode ◽  
Electron Cyclotron Frequency ◽  
The Earth ◽  
First Results ◽  
Initial Results

Abstract. We use the first measurements of the STAFF/DWP instrument on the Double Star TC-1 spacecraft to investigate whistler-mode chorus. We present initial results of a systematic study on radial variation of dawn chorus. The chorus events show an increased intensity at L parameter above 6. This is important for the possible explanation of intensifications of chorus, which were previously observed closer to the Earth at higher latitudes. Our results also indicate that the upper band of chorus at frequencies above one-half of the electron cyclotron frequency disappears for L above 8. The lower band of chorus is observed at frequencies below 0.4 of the electron cyclotron frequency up to L of 11-12. The maxima of the chorus power spectra are found at slightly lower frequencies compared to previous studies. We do not observe any distinct evolution of the position of the chorus frequency band as a function of L. More data of the TC-1 spacecraft are needed to verify these initial results and to increase the MLT coverage.

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