Ion cyclotron harmonics in the Saturn downward current auroral region

2011 ◽  
Vol 116 (A12) ◽  
pp. n/a-n/a ◽  
Author(s):  
J. D. Menietti ◽  
P. Schippers ◽  
O. Santolík ◽  
D. A. Gurnett ◽  
F. Crary ◽  
...  
Keyword(s):  
Auroral Region ◽  
Ion Cyclotron ◽  
Cyclotron Harmonics

The excitation of obliquely propagating fast Alfvén waves at fusion ion cyclotron harmonics

1994 ◽  
Vol 1 (6) ◽  
pp. 1918-1928 ◽  
Author(s):  
R. O. Dendy ◽  
C. N. Lashmore‐Davies ◽  
K. G. McClements ◽  
G. A. Cottrell
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Ion Cyclotron ◽  
Cyclotron Harmonics

Stochastic Acceleration by an Electrostatic Wave near Ion Cyclotron Harmonics

1977 ◽  
Vol 38 (13) ◽  
pp. 701-704 ◽  
Author(s):  
A. Fukuyama ◽  
H. Momota ◽  
R. Itatani ◽  
T. Takizuka
Keyword(s):  
Electrostatic Wave ◽  
Stochastic Acceleration ◽  
Ion Cyclotron ◽  
Cyclotron Harmonics

scholarly journals A model of so-called "Zebra" emissions in solar flare radio burst continua

2011 ◽  
Vol 29 (9) ◽  
pp. 1673-1682 ◽  
Author(s):  
R. A. Treumann ◽  
R. Nakamura ◽  
W. Baumjohann
Keyword(s):  
Narrow Band ◽  
Radio Continuum ◽  
Radio Emissions ◽  
Zebra Pattern ◽  
Cyclotron Maser ◽  
Broadband Radio ◽  
Ion Cyclotron ◽  
Electric Potential Field ◽  
Cyclotron Harmonics ◽  
Electron Maser

Abstract. A simple mechanism for the generation of electromagnetic "Zebra" pattern emissions is proposed. "Zebra" bursts are regularly spaced narrow-band radio emissions on the otherwise broadband radio continuum emitted by the active solar corona. The mechanism is based on the generation of an ion-ring distribution in a magnetic mirror geometry in the presence of a properly directed field-aligned electric potential field. Such ion-rings or ion-conics are well known from magnetospheric observations. Under coronal conditions they may become weakly relativistic. In this case the ion-cyclotron maser generates a number of electromagnetic ion-cyclotron harmonics which modulate the electron maser emission. The mechanism is capable of switching the emission on and off or amplifying it quasi-periodically which is a main feature of the observations.

Sign in / Sign up

Export Citation Format

Share Document