Solar radio emissions

2005 ◽  
Vol 35 (5) ◽  
pp. 739-754 ◽  
Author(s):  
J.-P. Raulin ◽  
A.A. Pacini
2009 ◽  
Vol 5 (S264) ◽  
pp. 279-281
Author(s):  
Reinaldo R. Rosa ◽  
Mauricio J. A. Bolzan ◽  
Francisco C. R. Fernandes ◽  
H. S. Sawant ◽  
Marian Karlický

AbstractThe solar radio emissions in the decimetric frequency range (above 1 GHz) are very rich in temporal and spectral fine structures due to nonlinear processes occurring in the magnetic structures on the corresponding active regions. In this paper we characterize the singularity spectrum, f(α), for solar bursts observed at 1.6, 2.0 and 3 GHz. We interpret our findings as evidence of inhomogeneous plasma turbulence driving the underlying plasma emission process and discuss the nonlinear multifractal approach into the context of geoeffective solar active regions.


Nature ◽  
1948 ◽  
Vol 161 (4082) ◽  
pp. 134-136 ◽  
Author(s):  
I. L. THOMSEN

2017 ◽  
Vol 65 (12) ◽  
pp. 6624-6635 ◽  
Author(s):  
Ahmed Iyanda Sulyman ◽  
Hussein Seleem ◽  
Abdulmalik Alwarafy ◽  
Khaled M. Humadi ◽  
Abdulhameed Alsanie

2016 ◽  
Vol 823 (1) ◽  
pp. L5 ◽  
Author(s):  
V. Krupar ◽  
J. P. Eastwood ◽  
O. Kruparova ◽  
O. Santolik ◽  
J. Soucek ◽  
...  

1967 ◽  
Vol 1 (2) ◽  
pp. 56-58 ◽  
Author(s):  
T. Takakura ◽  
A. Tsuchiya ◽  
M. Morimoto ◽  
K. Kai

During the last solar cycle a number of observations of solar radio emissions were made in a wide frequency range from which an enormous amount of information has been obtained. However the results obtained so far are limited by rather poor angular resolution. Observations with much higher resolution (of the order of 1′ arc) have been required for further studies of solar radio emissions. At the present stage such observations have proceeded in the microwave range; also the radioheliograph at 80 MHz has just started at the Culgoora Observatory. At the Tokyo Astronomical Observatory a high-resolution study of radio bursts in the metre-wave range has been planned since 1960, and the construction of a new compound interferometer operating at 160.3 MHz was started in April 1967 at a new site, Nobeyama. This site, located about 150 km north-west of Tokyo, is surrounded by mountains and quite free from man-made interference. We shall give a brief description of this equipment; details will be published later.


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