Studies of the Angular Structure of Scintillating Radio Sources at 111 MHz
- Authors: Tyul’bashev S.A.1, Chashei I.V.1, Grigor’eva E.A.1
- 
							Affiliations: 
							- Lebedev Physical Institute, Astro Space Center
 
- Issue: Vol 63, No 6 (2019)
- Pages: 479-494
- Section: Article
- URL: https://journals.rcsi.science/1063-7729/article/view/192913
- DOI: https://doi.org/10.1134/S1063772919060064
- ID: 192913
Cite item
Abstract
The angular sizes and compactnesses of 53 scintillating radio sources observed at 111 MHz on the Large Phased Array of the Lebedev Physical Institute are estimated. The parameters of the angular structures of the sources are estimated using a new method based on a joint analysis of the scintillation index and the asymmetry coefficient for the statistical distribution of the intensity fluctuations. The asymmetry coefficient for scintillations of a point source is estimated based on an analysis of observational data for turbulence in the solar wind. Different methods for estimating source angular sizes based on observations of interplanetary scintillations are compared. It is shown that the proposed new method is suitable for sources with angular sizes up to 1″. The accuracy of the estimated angular sizes and compactnesses of the sources is about 40%.
About the authors
S. A. Tyul’bashev
Lebedev Physical Institute, Astro Space Center
							Author for correspondence.
							Email: serg@prao.ru
				                					                																			                												                	Russian Federation, 							Pushchino, Moscow region						
I. V. Chashei
Lebedev Physical Institute, Astro Space Center
														Email: serg@prao.ru
				                					                																			                												                	Russian Federation, 							Pushchino, Moscow region						
E. A. Grigor’eva
Lebedev Physical Institute, Astro Space Center
														Email: serg@prao.ru
				                					                																			                												                	Russian Federation, 							Pushchino, Moscow region						
Supplementary files
 
				
			 
					 
						 
						 
						 
						 
				 
  
  
  
  
  Email this article
			Email this article  Open Access
		                                Open Access Access granted
						Access granted Subscription Access
		                                		                                        Subscription Access
		                                					