energy release region
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2016 ◽  
Vol 2 (2) ◽  
pp. 15-27 ◽  
Author(s):  
Дмитрий Жданов ◽  
Dmitriy Zhdanov ◽  
Сергей Лесовой ◽  
Sergey Lesovoi ◽  
Сусанна Тохчукова ◽  
...  

Microwave fine structures allow us to study plasma evolution in an energy release region. The Siberian Solar Radio Telescope (SSRT) is a unique instrument designed to examine fine structures at 5.7 GHz. A complex analysis of data from RATAN-600, 4–8 GHz spectropolarimeter, and SSRT, simultaneously with EUV data, made it possible to localize sources of III type microwave bursts in August 10, 2011 event within the entire frequency band of burst occurrence, as well as to determine the most probable region of primary energy release. To localize sources of III type bursts from RATAN-600 data, an original method for data processing has been worked out. At 5.7 GHz, the source of bursts was determined along two coordinates, whereas at 4.5, 4.7, 4.9, 5.1, 5.3, 5.5, and 6.0 GHz, their locations were identified along one coordinate. The size of the burst source at 5.1 GHz was found to be maximum as compared to those at other frequencies.


JETP Letters ◽  
2005 ◽  
Vol 81 (8) ◽  
pp. 378-382 ◽  
Author(s):  
V. P. Efremov ◽  
S. A. Pikuz ◽  
A. Ya. Faenov ◽  
O. Rosmej ◽  
I. Yu. Skobelev ◽  
...  

1994 ◽  
Vol 37 (7) ◽  
pp. 569-574
Author(s):  
B. N. Levin ◽  
V. M. Fridman ◽  
O. A. Sheiner

1994 ◽  
Vol 142 ◽  
pp. 713-717
Author(s):  
B. N. Levin ◽  
V. M. Fridman ◽  
O. A. Sheiner

AbstractThe paper is devoted to the interpretation of spectrographic data within the frequency range 8-12 GHz. Some spectral characteristics of weak solar steplike radio bursts are reported. To explain some parameters of the emission the ability to keep superthermal electrons in a magnetic trap with dense inhomogeneous plasma is theoretically studied. On the basis of this model we estimate the energy and number of accelerated electrons, and the flux density of precipitating electrons which are the source of enhanced plasma radiation. For the obtained efficiency of electron acceleration the calculated intensity of gyrosynchrotron emission proves to be less than the observed one.Subject headings: acceleration of particles — radiation mechanisms: nonthermal — Sun: flares — Sun: radio radiation


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