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The Method CLEAN – Use, Misuse and Variations

Published online by Cambridge University Press:  12 April 2016

U.J. Schwarz
U.J. Schwarz*
Affiliation:
Kapteyn Astronomical Institute, University of Groningen

Summary

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The mathematical background of the method CLEAN, as given by Schwarz (1978) is summarized. A method to derive source parameters (flux, position, extent) as a direct application of the theory is described. The ambiguity of the CLEAN method is discussed from a theoretical and practical point of view. Empirical results on the influence of the loop-gain are given. A new approach for the processing of maps with limited phase information is presented and a novel application of CLEAN for beam-switching observations (as an example for the case of a non-symmetric beam) is given.

Type
Part VI: Other Image Improvement Methods
Information
International Astronomical Union Colloquium , Volume 49: Image Formation from Coherence Functions in Astronomy , 1979 , pp. 261 - 275
Copyright
Copyright © Reidel 1979

References

Balick, B., Sanders, R.H.: 1974, “Astrophys. J.” 192, p.325.CrossRefGoogle Scholar
Ekers, R.D., Goss, W.M., Schwarz, U.J., Downes, D., Rogstad, D.H.: 1975, “Astron. Astrophys.” 43, pp.159–166.Google Scholar
Högbom, J.A.: 1974, “Astron. Astrophys. Suppl.” 15, p. 417.Google Scholar
Hulst, J.M. van der: 1977, Thesis, University of Groningen.Google Scholar
Muizon, M. de: 1978, Thesis, l’Université de Paris.Google Scholar
Readhead, A.C.S., Wilkinson, P.N.: 1978, “Astrophys. J.” 223, pp.25–36.CrossRefGoogle Scholar
Rogstad, D.H., Shostak, G.S.: 1971, “Astron. Astrophys.” 13, p.99.Google Scholar
Schwarz, U.J.: 1978, “Astron. Astrophys.” 65, p.345.Google Scholar
Temple, G.: 1938, “Proc. Roy. Soc. A.” 169, p.476.Google Scholar