SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky.I. Science Goals, Survey Design, and Instrumentation

D. C.-J. Bock; M. I. Large; Elaine M. Sadler

doi:10.1086/300786

SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky. I. Science Goals, Survey Design, and Instrumentation

D. C.-J. Bock^1,2, M. I. Large¹, and Elaine M. Sadler¹

© 1999. The American Astronomical Society. All rights reserved. Printed in U.S.A.
The Astronomical Journal, Volume 117, Number 3 Citation D. C.-J. Bock et al 1999 AJ 117 1578 DOI 10.1086/300786

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Author affiliations

¹ School of Physics, University of Sydney, NSW 2006, Australia

² Current address: Radio Astronomy Laboratory, University of California at Berkeley, Berkeley, CA 94720

Dates

Received 1998 October 15
Accepted 1998 November 20

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Abstract

The Molonglo Observatory Synthesis Telescope, operating at 843 MHz with a 5 deg² field of view, is carrying out a radio imaging survey of the sky south of declination -30°. This survey (the Sydney University Molonglo Sky Survey, or SUMSS) produces images with a resolution of 43'' × 43'' csc |δ| and an rms noise level of ∼1 mJy beam^-1. The SUMSS is therefore similar in sensitivity and resolution to the northern NRAO VLA Sky Survey. The survey is progressing at a rate of about 1000 deg² per year, yielding individual and statistical data for many thousands of weak radio sources. This paper describes the main characteristics of the survey and presents sample images from the first year of observations.

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