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The structure of Cassiopeia A at metre wavelengths

Woan, G., and Dufflett-Smith, P.J. (1990) The structure of Cassiopeia A at metre wavelengths. Monthly Notices of the Royal Astronomical Society, 243 . pp. 87-96. ISSN 0035-8711

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Abstract

Long-baseline interferometric observations of the supernova remnant Cassiopeia A on projected baselines of up to 34,000 lambda reveal that its structure at 81.5 MHz is remarkably similar to that observed with the VLA at 1381 MHz. Variations in spectral index over the source are apparent, but the measurements show that it does not contain a single steep-spectrum compact component with a flux density of more than a few Jy. These new findings are in sharp contrast with much of the existing low-frequency data on the remnant.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Woan, Prof Graham
Authors: Woan, G., and Dufflett-Smith, P.J.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Monthly Notices of the Royal Astronomical Society
Publisher:Wiley-Blackwell Publishing Ltd.
ISSN:0035-8711
ISSN (Online):1365-2966

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