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The Parkes 21 cm Multibeam Receiver

Published online by Cambridge University Press:  25 April 2016

L. Staveley-Smith
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, [email protected]
W. E. Wilson
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, [email protected]
T. S. Bird
Affiliation:
Division of Radiophysics, CSIRO, PO Box 76, Epping, NSW 2121, Australia
M. J. Disney
Affiliation:
Department of Physics and Astronomy, University of Wales College of Cardiff, PO Box 913, Cardiff CF2 3YB, UK
R. D. Ekers
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, [email protected]
K. C. Freeman
Affiliation:
Mount Stromlo and Siding Spring Observatories, Weston Creek PO, Canberra, ACT 2611, Australia
R. F. Haynes
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, [email protected]
M. W. Sinclair
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, [email protected]
R. A. Vaile
Affiliation:
University of Western Sydney, Macarthur, PO Box 555, Campbelltown, NSW 2560, Australia
R. L. Webster
Affiliation:
School of Physics, University of Melbourne, Parkville, Victoria 3052, Australia
A. E. Wright
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, [email protected]

Abstract

Several extragalactic HI surveys using a λ21 cm 13-beam focal plane array will begin in early 1997 using the Parkes 64 m telescope. These surveys are designed to detect efficiently nearby galaxies that have failed to be identified optically because of low optical surface brightness or high optical extinction. We discuss scientific and technical aspects of the multibeam receiver, including astronomical objectives, feed, receiver and correlator design and data acquisition. A comparison with other telescopes shows that the Parkes multibeam receiver has significant speed advantages for any large-area λ21 cm galaxy survey in the velocity range range 0–14000 km s−1.

Type
Instruments, Techniques and Basic Measurements
Copyright
Copyright © Astronomical Society of Australia 1996

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