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A Search for Transient Events at 843 MHz

Published online by Cambridge University Press:  25 April 2016

S. W. Amy ,
M. I. Large  and
A. E. Vaughan
S. W. Amy
Affiliation:
School of Physics, University of Sydney
M. I. Large
Affiliation:
School of Physics, University of Sydney
A. E. Vaughan
Affiliation:
School of Mathematics, Physics, Computing and Electronics, Macquarie University
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Abstract

The Molonglo Observatory Synthesis Telescope is equipped with a transient event monitoring system which operates during normal synthesis observations. The device is designed to respond to impulsive signals which occur within the passband (843.0 ± 1.5 MHz) with time scales between 0.001 ms and 800 ms. The multiple beam facility of the telescope provides some discrimination against local interference. An upper limit of 1.7 × 10−2 events s−1 sr−1 has been placed on celestial events with durations between 1 ms and 25 ms and energy density ≥ 10−28 J m−2 Hz−1. The monitoring system has been recently reconfigured to improve the recognition and rejection of impulsive signals of non-celestial origin.

Type
Miscellaneous Radio Astronomy
Information
Publications of the Astronomical Society of Australia , Volume 8 , Issue 2 , 1989 , pp. 172 - 175
Copyright
Copyright © Astronomical Society of Australia 1989

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