New Results from an ATCA Study of Intraday Variable Radio Sources

doi:10.1071/AS01101

New Results from an ATCA Study of Intraday Variable Radio Sources

H. E. Bignall, D. L. Jauncey, L. L. Kedziora-Chudczer, J. E. J. Lovell, J.-P. Macquart, D. P. Rayner, S. J. Tingay, A. K. Tzioumis, R. W. Clay, R. G. Dodson, P. M. McCulloch and G. D. Nicolson

Publications of the Astronomical Society of Australia 19(1) 29 - 33

Abstract

We are undertaking an observational program using the ATCA to monitor the intraday variability (IDV) of a sample of sources at 4.8 and 8.6 GHz. The sources were selected to include the known strong southern IDV sources plus a number of sources whose IDV was recently discovered. The present monitoring program will extend over a full year in order to search for any annual cycle that may be present in the long-term IDV characteristics of these sources. In this paper we discuss the observing strategy and data analysis, and present the first results from our observations.

Keywords: radio continuum: galaxies — quasars: individual (PKS 1257− 326, PMN J1326− 5256, PMN J1047− 6217) — ISM: general — polarisation

Full text doi:10.1071/AS01101

© CSIRO 2002