Scintillation and Apparent Angular Diameter,

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Abstract:

Angular scattering, intensity scintillations, and apparent diameter are discussed in the context of arbitrary irregularity structure. The intrinsic diameter of a source can always be measured with an interferometer in the presence of arbitrarily strong scattering unless all three of the following conditions apply 1 intrinsic diameter scattering angle, 2 the source displays weak or no intensity scintillations, 3 a point source shows strong intensity scintillations. If these conditions do apply the apparent diameter is the scattering angle. Author

Author(s):
Cohen, M. H. ; Cronyn, W. M.
Author Organization(s):
OWENS VALLEY RADIO OBSERVATORY PASADENA CALIF
Supplementary Note:
Prepared in cooperation with National Oceanic and Atmospheric Administration, Boulder, Colo. Space Environment Lab. and Clark Lake Radio Observatory, Maryland Univ.
Pagination:
0018

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
1974-1
Contract/Grant Number(s):
N00014-67-A-0094-0019, NSF-40400
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Extraterrestrial radio waves, *Scintillation, Electromagnetic scattering, Quasars, Pulsars
Field(s)/Group(s):
Astrophysics, Radiofrequency Wave Propagation
Report Date:
1974 Jan 01