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CLEAN/MEM Deconvolution Errors: Semicompact Sources

Published online by Cambridge University Press:  19 July 2016

D. S. Briggs  and
T. J. Cornwell
D. S. Briggs
Affiliation:
ATNF, PO Box 76, Epping, NSW 2121, Australia
T. J. Cornwell
Affiliation:
NRAO, PO Box O, Socorro, NM 87801, USA

Abstract

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We have run a number of simulations investigating the limitations of noiseless point spread deconvolution with the VLA. On-source errors of more than .01 and off-source dynamic ranges of less than 15,000 were found for some parameters typical of high precision observations. Deconvolution errors were not confined to the support of the source, and limit the dynamic range in at least one VLA observation.

Keywords

DeconvolutionCLEANMEM
Type
Imaging Theory
Information
Symposium - International Astronomical Union , Volume 158: Very High Angular Resolution Imaging , 1994 , pp. 212 - 214
Copyright
Copyright © Kluwer 1994 

References

Cornwell, T.J. and Evans, K.F.: 1985, Astron. Astrophys. 143, 77–83 Google Scholar
Högbom, J.A.: 1974, Astron. Astrophys. Suppl. Ser. 15, 417–426 Google Scholar
Narayan, R. and Nityananda, R.: 1986, Ann. Rev. Astron. Astrophys. 24, 127–70Google Scholar
Steer, D.G., Dewdney, P.E., and Ito, M.R.: 1984, Astron. Astrophys. 137, 159–165 Google Scholar
Wakker, B.P. and Schwarz, U.J.: 1988, Astron. Astrophys. 200, 312–322 Google Scholar