Spatial coherence in a scatter-broadened image-observations of 3C279 close to the sun

Cornwell, T. J. ; Anantharamaiah, K. R. ; Narayan, R. (1988) Spatial coherence in a scatter-broadened image-observations of 3C279 close to the sun American Institute of Physics Conference Proceedings, 174 . pp. 92-96. ISSN 0094-243X

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Official URL: http://link.aip.org/link/?APCPCS/174/92/1

Related URL: http://dx.doi.org/10.1063/1.37583

Abstract

Using the NRAO Very Large Array radio-telescope, we have imaged the IPS scattered disk of 3C279 close to the Sun with high spatial and temporal resolution. The resulting images have speckles, similar to those seen in short-exposure optical photographs of the seeing disk. We describe a test for coherence in the scattered radiation, and confirm that, under suitable observing conditions, the observed radiation is indeed spatially coherent.

Item Type:Article
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