1. RRI Digital Repository
  2. 04. Astronomy and Astrophysics
  3. Research Papers (A&A)
Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2380
Full metadata record
DC FieldValueLanguage
dc.contributor.authorCornwell, T.J.-
dc.contributor.authorAnantharamaiah, K.R.-
dc.contributor.authorNarayan, R.-
dc.date.accessioned2007-05-25T05:25:56Z-
dc.date.available2007-05-25T05:25:56Z-
dc.date.issued1989-07-
dc.identifier.citationJournal of the Optical Society of America, 1990, Vol.6, p977-986en
dc.identifier.issn1084-7529-
dc.identifier.urihttp://hdl.handle.net/2289/2380-
dc.descriptionRestricted Access.en
dc.description.abstractIt is well known that high-time-resolution imaging of the optical seeing disk reveals the existence of speckles inside the envelope. Since analogs of seeing disks occur in many different fields, one might expect that analogs of speckles also exist. Using radio-astronomical techniques, we have studied one such example in depth: interplanetary scintillation. By using a radio-interferometric array, we measured directly the coherence of the radiation after scattering by the solar wind and confirmed the existence of fine-scale structure similar to speckles. In order to understand further the behavior of the coherence function after scattering, we adapted and extended the theory previously developed by Cornwell and Napier [in Proceedings of the National Radio Astronomy Observatory Workshop on Radio Astronomy in Space (National Radio Astronomy Observatory, Greenbank, W. Va., 1986); Radio Sci. 23, 739 (1988)] for the case of coherence measurements at the focal plane of a single-reflector radio telescope. We develop and demonstrate a test for coherence of the scattered radiation, and we discuss the prospects for high-angular-resolution imaging of objects. This treatment also leads to new insights into the effect of spatial coherence of emitters on interferometric measurements.en
dc.format.extent1850001 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.relation.urihttp://www.opticsinfobase.org/abstract.cfm?URI=josaa-6-7-977en
dc.rights1989 Optical Society of Americaen
dc.titlePropagation of coherence in scattering: an experiment using interplanetary scintillationen
dc.typeArticleen
Appears in Collections:Research Papers (A&A)

Files in This Item:
File Description SizeFormat 
1989 JOSA-A V6 p977.pdf
  Restricted Access		Restricted Access1.81 MBAdobe PDFView/Open Request a copy
Show simple item record


Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.