Effects of turbulence on the electron cyclotron-maser mechanism for solar microwave spike bursts

Solar Physics ◽  
1991 ◽  
Vol 136 (2) ◽  
pp. 343-360 ◽  
Author(s):  
P. A. Robinson
1983 ◽  
Vol 5 (2) ◽  
pp. 188-191 ◽  
Author(s):  
S. M. White ◽  
D. B. Melrose ◽  
G. A. Dulk

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).


1986 ◽  
Vol 39 (3) ◽  
pp. 407
Author(s):  
LT Ball ◽  
RG Hewitt

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.


1988 ◽  
Vol 38 (6) ◽  
pp. 2883-2888 ◽  
Author(s):  
T. H. Kho ◽  
A. T. Lin

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