Electron-Cyclotron Maser Theory for Noninteger Ratio Emission Frequencies in Solar Microwave Spike Bursts

1996 ◽  
Vol 467 ◽  
pp. 465 ◽  
Author(s):  
A. J. Willes ◽  
P. A. Robinson
Keyword(s):  
Electron Cyclotron ◽  
Electron Cyclotron Maser ◽  
Cyclotron Maser ◽  
Solar Microwave ◽  
Spike Bursts

Electron Cyclotron Masers during Solar Flares

1983 ◽  
Vol 5 (2) ◽  
pp. 188-191 ◽  
Author(s):  
S. M. White ◽  
D. B. Melrose ◽  
G. A. Dulk
Keyword(s):  
Solar Flares ◽  
Electron Cyclotron ◽  
X Ray ◽  
Electron Cyclotron Maser ◽  
Cyclotron Maser ◽  
Electron Cyclotron Masers ◽  
Solar Microwave ◽  
Spike Bursts ◽  
Maser Action

It has been suggested (Holman et al 1980; Melrose and Dulk 1982a) that solar microwave spike bursts are due to electron cyclotron maser action. These bursts have been observed in the range 1-3 Ghz, and occur in conjunction with flare-associated impulsive microwave and hard X-ray bursts. The bursts have rise times of a millisecond or less (e.g. Slottje 1978).

scholarly journals Finite Larmor Radius Modifications to the Magnetoionic Wave Modes and Their Effects on Electron Cyclotron Maser Emission

1986 ◽  
Vol 39 (3) ◽  
pp. 407
Author(s):  
LT Ball ◽  
RG Hewitt
Keyword(s):  
Maximum Growth ◽  
Electron Cyclotron ◽  
Larmor Radius ◽  
Maser Emission ◽  
Finite Larmor Radius ◽  
Electron Cyclotron Maser ◽  
Cyclotron Maser ◽  
Auroral Kilometric Radiation ◽  
Solar Microwave ◽  
Wave Modes

Auroral kilometric radiation, Jupiter's decametric and Saturn's kilometric radio emissions, solar microwave spike bursts and microwave emissions from some flare stars have all been attributed to the electron cyclotron maser instability. The maser instability is usually assumed to involve the generation of magnetoionic waves. We investigate the modifications to the magneto ionic wave modes due to finite Larmor radius (FLR) corrections arising from a 'warm' background electron plasma with a Maxwellian distribution. We then consider the effects of these modifications on maser emission at frequencies near the fundamental of the electron cyclotron frequency fl e. The FLR effects are found to be small; the maximum temporal growth rate generally differs by ~ 10% from that for emission occurring in the magnetoionic modes. Small shifts occur in the frequencies and propagation angles corresponding to the maximum growth rates.

Slow-wave electron cyclotron maser

1988 ◽  
Vol 38 (6) ◽  
pp. 2883-2888 ◽  
Author(s):  
T. H. Kho ◽  
A. T. Lin
Keyword(s):  
Slow Wave ◽  
Electron Cyclotron ◽  
Electron Cyclotron Maser ◽  
Cyclotron Maser
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