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Bright Prospects: Comparing the Hα Survey with Large-scale Radio Continuum Emission

Published online by Cambridge University Press:  05 March 2013

A. R. Duncan  and
R. F. Haynes
A. R. Duncan
Affiliation:
Physics Department, University of Queensland, St Lucia, Qld 4072, Australia; [email protected]
R. F. Haynes
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, Australia
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Abstract

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Prospects for comparisons between the AAO/UKST Hα survey and large-scale radio continuum emission are considered, with particular reference to the recently completed Parkes 2·4 GHz survey of the southern Galactic Plane. Both these surveys have a high sensitivity to thermal emission, and comparisons between the Parkes work and previous Hα surveys show many objects in common. Possibilities for new detections include: a number of new supernova remnants; the faint extensions and envelopes surrounding ‘classical’ HII complexes, and other faint regions of thermal emission; several active HII complexes, including an outflow of ionised gas from IC 4628 and a number of bi-polar ‘plumes’ of low-density, thermal material apparently associated with HII complexes on the Carina spiral arm.

Keywords

HII regionsradio continuum: generalsurveys
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 15 , Issue 1 , 1998 , pp. 50 - 55
Copyright
Copyright © Astronomical Society of Australia 1998

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