Ulysses observations of nonlinear wave-wave interactions in the source regions of type III solar radio bursts

2000 ◽  
Vol 21 (3-4) ◽  
pp. 447-450
Author(s):  
G. Thejappa ◽  
R. J. MacDowall
Keyword(s):  
Nonlinear Wave ◽  
Solar Radio ◽  
Radio Bursts ◽  
Wave Interactions ◽  
Solar Radio Bursts ◽  
Type Iii ◽  
Source Regions

Electron Exciter Speeds Associated with Interplanetary Type III Solar Radio Bursts

Solar Physics ◽  
2015 ◽  
Vol 290 (10) ◽  
pp. 2975-3004 ◽  
Author(s):  
M. J. Reiner ◽  
R. J. MacDowall
Keyword(s):  
Solar Radio ◽  
Radio Bursts ◽  
Solar Radio Bursts ◽  
Type Iii

A Theory of Type III Solar Radio Bursts

1974 ◽  
pp. 283-283
Author(s):  
V. V. Zaitsev ◽  
N. A. Mityakov ◽  
V. O. Rapoport
Keyword(s):  
Solar Radio ◽  
Radio Bursts ◽  
Solar Radio Bursts ◽  
Type Iii

scholarly journals The Polarization Structure of Type III Solar Radio Bursts

1965 ◽  
Vol 18 (3) ◽  
pp. 283 ◽  
Author(s):  
UV Gopala Rao
Keyword(s):  
Solar Radio ◽  
Great Majority ◽  
Radio Bursts ◽  
Solar Radio Bursts ◽  
Polarization Structure ◽  
Type Iii ◽  
Double Structure ◽  
Strong Polarization ◽  
Diffuse Background

The polarization of type III bursts was measured, using a swept.phase technique, at 40 and 60 Mc/s. The great majority of type III bursts show slight to moderate polarization. The results indicate a double structure for the type III burst-a sharp, intense, drifting feature with relatively strong polarization, and a diffuse background of longer duration with relatively weak or zero polarization.

scholarly journals Recent Results of Meter-decameter Wave Observations of Solar Flares

1989 ◽  
Vol 104 (2) ◽  
pp. 185-189
Author(s):  
N. Copalswamy ◽  
M. R. Kundu
Keyword(s):  
Solar Flares ◽  
Solar Radio ◽  
Radio Bursts ◽  
Type Ii ◽  
Solar Radio Bursts ◽  
Type Iii ◽  
Type Iv

AbstractWe present recent results from meter-decameter imaging of several classes of solar radio bursts: Preflare activity in the form of type III bursts, correlated type IIIs from distant sources, and type II and moving type IV bursts associated with flares and CMEs.

scholarly journals Numerical Simulation of Type III Bursts

1980 ◽  
Vol 86 ◽  
pp. 299-302
Author(s):  
T. Takakura
Keyword(s):  
Numerical Simulation ◽  
Analytical Method ◽  
Solar Radio ◽  
Plasma Waves ◽  
Radio Bursts ◽  
Emission Mechanism ◽  
Normal Type ◽  
Solar Radio Bursts ◽  
Radio Emissions ◽  
Type Iii

By the use of semi-analytical method, modeling of three kinds of type III solar radio bursts have been made. Many basic problems about the type III bursts and associated solar electrons have been solved showing some striking or unexpected results. If the fundamental radio emissions should be really observed as the normal type III bursts, the emission mechanism would not be the currently accepted one, i.e. the scattering of plasma waves by ions.

The Theory of Solar Radio Bursts: Can it be understood by the Non-Expert?

1981 ◽  
Vol 4 (2) ◽  
pp. 139-144 ◽  
Author(s):  
D. B. Melrose
Keyword(s):  
Observational Data ◽  
Solar Radio ◽  
Solar Physics ◽  
Plasma Instabilities ◽  
The Sun ◽  
Radio Bursts ◽  
Wave Interactions ◽  
Solar Radio Bursts ◽  
Dynamic Spectra ◽  
Time Structures

The theory of solar radio bursts remains a mystery to most astronomers and astrophysicists. The reasons for this are not hard to identify. First, the solar radioastronomical data are unfamiliar. (The observational data on solar radio bursts is being reviewed separately at this meeting (McLean 1981).) The important features of this data involve frequency-time structures in dynamic spectra, and such features are absent in data on galactic and extra galactic objects. Even for pulsars the data are obtained at discrete frequencies, and the frequency-time structures are not of major importance. Second, the theory itself involves plasma physical concepts which are unfamiliar to most physicists and astronomers. These concepts include those of plasma instabilities, microturbulence, and of particle-wave and wave-wave interactions. Third, one must also admit that there is a prejudice amongst many astronomers against solar physics: the Sun is regarded as interesting only to the extent that it can teach us about other astronomical objects. I shall return to this third point later.

scholarly journals Satellite Observations of Solar Radio Bursts

1980 ◽  
Vol 86 ◽  
pp. 387-400
Author(s):  
J.L. Steinberg
Keyword(s):  
Solar Radio ◽  
Source Size ◽  
Type I ◽  
Radio Bursts ◽  
Solar Radio Bursts ◽  
Burst Source ◽  
Radiation Mechanism ◽  
3 Dimensional ◽  
Type Iii ◽  
Group Delays

Space observations of solar radio bursts have provided the following information:– From a single spacecraft:Measurements within the burst source or close to it: fundamental and harmonic type III radio emission, the corresponding plasma waves and spectra of the exciting electrons.– From a spacecraft and the earth or from two spacecrafts:A better evaluation of the influence of the ionosphere on some ground-based observations.Measurements of the beaming of the emission which yield constraints on the radiation mechanism and/or the role of coronal propagation in determining the source size and directivity (type I and III's).Measurements of the differential time delay which yield for type III:At short (m- and dam-) wavelengths, some evidence of group delays,At long (hm- and km-) wavelengths one coordinate of the source.Complete (3-dimensional) localization of the source at long wavelengths and therefore maps of the heliosphere magnetic field and electron density as well as the source size and, in the future, its polarization.The results of these observations and their interpretation are reviewed and discussed.

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