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Wide Field Mapping of 5C12

Published online by Cambridge University Press:  12 April 2016

J. E. Okopi  and
L. B. Bååth
J. E. Okopi
Affiliation:
Onsala Space Observatory, S-439 00 Onsala, Sweden
L. B. Bååth
Affiliation:
Onsala Space Observatory, S-439 00 Onsala, Sweden

Abstract

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The existing method of producing radio maps from interferometric data set is based on the assumption that there is a two dimensional fourier transform relationship between the sky brightness and the measured visibility. In mapping of a very wide field, this basic assumption breaks down due to various practical problems, e.g. bandwidth smearing. We present a wide-field mapping technique which is aimed at resolving some of these problems. This technique has been successfully applied to our MERLIN observations of the 5C12 region covering an area of 1800”×l800”.

Type
Imaging
Information
International Astronomical Union Colloquium , Volume 131: Radio Interferometry: Theory, Techniques, and Applications , 1991 , pp. 253 - 256
Copyright
Copyright © Astronomical Society of the Pacific 1991