Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-25T16:52:11.550Z Has data issue: false hasContentIssue false
  • English
  • Français

New Results from an ATCA Study of Intraday Variable Radio Sources

Published online by Cambridge University Press:  05 March 2013

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  and
R. G. Dodson
...Show all authors
H. E. Bignall*
Affiliation:
Department of Physics, University of Adelaide, SA 5005, Australia Australia Telescope National Facility, CSIRO, Epping, NSW, Australia
D. L. Jauncey
Affiliation:
Australia Telescope National Facility, CSIRO, Epping, NSW, Australia
L. L. Kedziora-Chudczer
Affiliation:
Australia Telescope National Facility, CSIRO, Epping, NSW, Australia Anglo-Australian Observatory, Epping, NSW, Australia
J. E. J. Lovell
Affiliation:
Australia Telescope National Facility, CSIRO, Epping, NSW, Australia
J.-P. Macquart
Affiliation:
Research Centre for Theoretical Astrophysics, School of Physics, University of Sydney, NSW 2006, Australia now at Kapteyn Institute, University of Groningen, The Netherlands
D. P. Rayner
Affiliation:
Australia Telescope National Facility, CSIRO, Epping, NSW, Australia
S. J. Tingay
Affiliation:
Australia Telescope National Facility, CSIRO, Epping, NSW, Australia
A. K. Tzioumis
Affiliation:
Australia Telescope National Facility, CSIRO, Epping, NSW, Australia
R. W. Clay
Affiliation:
Department of Physics, University of Adelaide, SA 5005, Australia
R. G. Dodson
Affiliation:
School of Maths and Physics, University of Tasmania, Hobart, Tasmania 7001, Australia
P. M. McCulloch
Affiliation:
School of Maths and Physics, University of Tasmania, Hobart, Tasmania 7001, Australia
G. D. Nicolson
Affiliation:
Hartebeesthoek Radio Astronomy Observatory, Krugersdorp 1740, Transval, South Africa
*
[email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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: galaxiesquasars: individual (PKS 1257−326, PMN J1326−5256, PMN J1047−6217)ISM: generalpolarisation
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 19 , Issue 1 , 2002 , pp. 29 - 33
Copyright
Copyright © Astronomical Society of Australia 2002

References

Dennett-Thorpe, J., & de Bruyn, A. G. 2001, in IAU Symp. 205, Galaxies and their Constituents at the Highest Angular Resolutions, eds R. T. Schilizzi, S. N. Vogel, F. Paresce, & M. S. Elvis (San Francisco: ASP), 68 CrossRefGoogle Scholar
Fuhrmann, L., et al. 2001, PASA, 19,Google Scholar
Heeschen, D. S. 1984, AJ, 89, 1111 CrossRefGoogle Scholar
Heeschen, D. S., Krichbaum, T., Schalinski, C. J., & Witzel, A. 1987, AJ, 94, 1493 CrossRefGoogle Scholar
Kedziora-Chudczer, L. L., Jauncey, D. L., Wieringa, M. H., Tzioumis, A. K., & Reynolds, J. E. 2001, MNRAS, 325, 1411 CrossRefGoogle Scholar
Kraus, A., Witzel, A., Krichbaum, T. P., Lobanov, A., Peng, B., & Ros, E. 1999, A&A, 352, L107 Google Scholar
Jauncey, D. L., & Macquart, J.-P. 2001, A&A, 370, L9 Google Scholar
Lovell, J. E. J. 1997, PhD Thesis, University of Tasmania, Australia Google Scholar
Perlman, E. S., et al. 1998, AJ, 115, 1253 CrossRefGoogle Scholar
Quirrenbach, A., et al. 1992, A&A, 258, 279 Google Scholar
Rickett, B. J., Witzel, A., Kraus, A., Krichbaum, T. P., & Qian, S. J. 2001, ApJ, 550, L11 CrossRefGoogle Scholar
Romero, G. E., Combi, J. A., & Colomb, F. R. 1994, A&A, 288, 731 Google Scholar
Spangler, S., Fanti, R., Gregorini, L., & Padrielli, L. 1989, A&A, 209, 315 Google Scholar
Walker, M. A. 1998, MNRAS, 294, 307 CrossRefGoogle Scholar