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State-of-the-art VLBI imaging: 3C345

Published online by Cambridge University Press:  12 April 2016

Ann E. Wehrle  and
Stephen C. Unwin
Ann E. Wehrle
Affiliation:
Owens Valley Radio Observatory, California Institute of Technologyand Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91125
Stephen C. Unwin
Affiliation:
Owens Valley Radio Observatory, California Institute of Technology, Pasadena, CA 91109

Abstract

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Most VLBI images have low dynamic range because they are limited by instrumental effects such as calibration errors and poor u, v-coverage. We outline the method used to make a new image of the bright quasar 3C345 which has very high dynamic range (peak-to-noise of 5000:1) and which is limited by the thermal noise, not instrumental errors. Both the Caltech VLBI package and the NRAO AIPS package were required to manipulate the data.

Type
VLBI Imaging
Information
International Astronomical Union Colloquium , Volume 131: Radio Interferometry: Theory, Techniques, and Applications , 1991 , pp. 354 - 357
Copyright
Copyright © Astronomical Society of the Pacific 1991