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The use of beam-sets in the Analysis of wide-field maps from the CLFST

Published online by Cambridge University Press:  12 April 2016

Em Waldram
Em Waldram*
Affiliation:
Mullard Radio Astronomy Observatory, Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, UK

Abstract

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The Cambridge Low Frequency Synthesis Telescope (CLFST) has baselines which are offset from the E-W direction by about 3°. The wide-field mapping problem has been overcome by the use of beam-sets, or artificial maps consisting of grids of synthesized beams, which incorporate the effects of both the geometric and chromatic aberration. By appropriate interpolation we can find a good approximation to the beam-shape at any point on a map.

Type
Imaging
Information
International Astronomical Union Colloquium , Volume 131: Radio Interferometry: Theory, Techniques, and Applications , 1991 , pp. 180 - 183
Copyright
Copyright © Astronomical Society of the Pacific 1991

References

Clark, B.G. 1982, In Synthesis Mapping, NRAO Workshop No.5, ed Thompson, A.R. and D’Addario, L.R., NRAO, Greenbank, p.10-1.Google Scholar
McGilchrist, M.M., Baldwin, J.E., Riley, J.M., Titterington, D.J., Waldram, E.M. and Warner, P.J. 1990, M.N.R.A.S., 246, 110.Google Scholar
Perley, R.A. 1989, In Synthesis Imaging in Radio Astronomy, NRAO Workshop No.21, ed Perley, R.A., Schwab, F.R. and Bridle, A.H., Conference Series Vol.6, Pub. A.S.P., p.259.Google Scholar
Rees, N.P. 1990, M.N.R.A.S., 244, 233.Google Scholar
Waldram, E.M. and McGilchrist, M.M. 1990, M.N.R.A.S., 245, 532.Google Scholar