Journal article
Scintillating confusion - Evaluation of a technique for measuring compact structure in weak radio sources
The Astronomical journal, Vol.84(8), pp.1129-1137
08/1979
DOI: 10.1086/112520
Abstract
The utility of studying the scintillation properties of confusion in a large single-dish radio telescope in order to measure compact structure in weak radio sources is investigated on the basis of observations of scintillations of 860-MHz confusion in the NRAO 91-m telescope. The data obtained are analyzed by two independent methods to obtain information on the scintillation-index distribution of weak radio sources. A cross-correlation analysis is performed, and a survey is undertaken for isolated scintillating sources. It is found that: (1) there is a major difficulty with the use of scintillations of confusion to study the compactness distribution of weak radio sources; (2) the scintillation 'confusion amplitude' close to the sun is very small, implying that very deep scintillation searches for highly compact sources are both feasible and likely to yield interesting results; and (3) the compactness distribution of radio sources with 850-MHz flux densities of 0.25 to 0.50 Jy is apparently not significantly different than that of stronger sources.
Details
- Title: Subtitle
- Scintillating confusion - Evaluation of a technique for measuring compact structure in weak radio sources
- Creators
- S. R SpanglerJ. M CordesK. A Meyers
- Resource Type
- Journal article
- Publication Details
- The Astronomical journal, Vol.84(8), pp.1129-1137
- DOI
- 10.1086/112520
- ISSN
- 0004-6256
- eISSN
- 1538-3881
- Language
- English
- Date published
- 08/1979
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199803702771
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