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Deep Survey of the Radio Continuum Emission along the Southern Galactic Plane at 2·4 GHz

Published online by Cambridge University Press:  25 April 2016

A. R. Duncan ,
R. T. Stewart ,
R. F. Haynes  and
K. L. Jones
A. R. Duncan
Affiliation:
Physics Department, University Of Queensland, St Lucia, Qld 4072, Australia
R. T. Stewart
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, Australia
R. F. Haynes
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, Australia
K. L. Jones
Affiliation:
Physics Department, University Of Queensland, St Lucia, Qld 4072, Australia
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Abstract

We have just completed the observational stage of a 2·4 GHz survey of the Southern Galactic Plane, using the Parkes radiotelescope, between 238° ≤ l ≤ 365° and with a latitude range of at least |b| ≤ 5° (beamwidth ~9 arcmin). The survey details both continuum emission and linear polarisation down to rms noises of approximately 12 and 4 mJy/beam respectively. It is the most sensitive survey to date of the southern plane at this frequency and should nicely complement the Effelsberg northern plane surveys in addition to the recent southern surveys such as the 843 MHz MOST survey and the 5 GHz PMN survey. The total-power maps are now completed, and reduction of the polarisation data is still in progress. In addition to compact HII regions and extragalactic sources, we are detecting on our total-power images a considerable amount of large-scale structure, and a significant number of new SNR candidates and spur-like features.

Keywords

Galaxystructure — HII regions — ISMsupernova remnants — polarisation
Type
Gallactic and Stellar
Information
Publications of the Astronomical Society of Australia , Volume 12 , Issue 1 , April 1995 , pp. 54 - 59
Copyright
Copyright © Astronomical Society of Australia 1995

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