Slow-drift (Type II) Radio Bursts from the Sun.

1960 ◽  
Vol 65 ◽  
pp. 502
Author(s):  
A. R. Thompson ◽  
A. Maxwell
Keyword(s):  
The Sun ◽  
Radio Bursts ◽  
Type Ii ◽  
Slow Drift ◽  
Type Ii Radio Bursts

scholarly journals On Split-Band Structure in Type II Radio Bursts from the Sun

1974 ◽  
Vol 57 ◽  
pp. 389-393 ◽  
Author(s):  
S. F. Smerd ◽  
K. V. Sheridan ◽  
R. T. Stewart
Keyword(s):  
Band Structure ◽  
The Sun ◽  
Radio Bursts ◽  
Type Ii ◽  
Band Splitting ◽  
Measured Amount ◽  
Type Ii Radio Bursts ◽  
Type Ii Bursts ◽  
Split Band

(Astrophys. Letters). The measured amount of band-splitting, Δf, in the spectra of nine harmonic type II bursts is illustrated in Figure 1. Here, as in previous, smaller samples (Roberts, 1959; Maxwell and Thompson, 1962; Weiss, 1965) Δf is found to increase with frequency, f.

scholarly journals Velocities of Shock Fronts in Solar Corona Generating Type II Radio Bursts at Metre Wavelengths

1962 ◽  
Vol 15 (1) ◽  
pp. 120
Author(s):  
M Krishnamurthi ◽  
G Sivarama Sastry ◽  
T Seshagiri Rao
Keyword(s):  
Shock Front ◽  
Solar Corona ◽  
Solar Flares ◽  
Radio Bursts ◽  
Type Ii ◽  
Plasma Oscillations ◽  
Slow Drift ◽  
Type Ii Radio Bursts ◽  
Shock Fronts ◽  
Comprehensive Study

At the time of intense solar flares, various types of enhanced radio emission from the Sun have been observed. Using such techniques as the swept frequency technique first developed by Wild and his associates, these enhanced emissions have been classified into five types. Of particular interest to radio astronomy at metre wavelengths is the slow drift type II bursts. A comprehensive study of these bursts has been made by Roberts (1959). It is now supposed that at the start of a flare an explosion occurs in the lower regions of the solar atmosphere ejecting a column of gas which travels radially outward from the region of the flare. This column of gas is bounded by a shock front which moves forward relative to this gas. This shock front is assumed to excite plasma oscillations in the solar corona giving rise to type II radiation. Velocities of these shock fronts have been determined by various workers.

On Split-Band Structure in Type II Radio Bursts from the Sun

1974 ◽  
pp. 389-393 ◽  
Author(s):  
S. F. Smerd ◽  
K. V. Sheridan ◽  
R. T. Stewart
Keyword(s):  
Band Structure ◽  
The Sun ◽  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts ◽  
Split Band

Solar and interplanetary parameters of CMEs with and without type II radio bursts

2012 ◽  
Vol 50 (4) ◽  
pp. 516-525 ◽  
Author(s):  
A. Mujiber Rahman ◽  
S. Umapathy ◽  
A. Shanmugaraju ◽  
Y.-J. Moon
Keyword(s):  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts

scholarly journals Coronal electron density distributions estimated from CMEs, DH type II radio bursts, and polarized brightness measurements

2016 ◽  
Vol 121 (4) ◽  
pp. 2853-2865 ◽  
Author(s):  
Jae‐Ok Lee ◽  
Y.‐J. Moon ◽  
Jin‐Yi Lee ◽  
Kyoung‐Sun Lee ◽  
R.‐S. Kim
Keyword(s):  
Electron Density ◽  
Radio Bursts ◽  
Type Ii ◽  
Density Distributions ◽  
Type Ii Radio Bursts ◽  
Coronal Electron

Investigation of X-class Flare-Associated Coronal Mass Ejections with and without DH Type II Radio Bursts

Solar Physics ◽  
2015 ◽  
Vol 290 (11) ◽  
pp. 3365-3377 ◽  
Author(s):  
M. Bendict Lawrance ◽  
A. Shanmugaraju ◽  
Bojan Vršnak
Keyword(s):  
Coronal Mass Ejections ◽  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts ◽  
Class Flare

Fine structure of decametric type II radio bursts

2007 ◽  
Vol 33 (3) ◽  
pp. 192-202 ◽  
Author(s):  
G. P. Chernov ◽  
A. A. Stanislavsky ◽  
A. A. Konovalenko ◽  
E. P. Abranin ◽  
V. V. Dorovsky ◽  
...  
Keyword(s):  
Fine Structure ◽  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts

scholarly journals Optical Observations of the Solar Disturbances Causing Type II Radio Bursts

1958 ◽  
Vol 11 (3) ◽  
pp. 353 ◽  
Author(s):  
RG Giovanelli ◽  
JA Roberts
Keyword(s):  
Subsequent Development ◽  
Optical Observations ◽  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts ◽  
Solar Disturbances ◽  
Dark Filament

Identifications have been established for the solar optical events associated with a number of type II radio bursts. Near or at the limb these have been ejections with velocities exceeding that of sound in the corona. Where the event has been on the disk there has usually been a very bright flare, with some evidence of dark filament activity. In two cases the event was the disappearance (i.e. ejection) of a filament with the subsequent development of flares on either side.

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