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Title:
Structures of four supernova remnants at 1.4 GHz
Authors:
Caswell, J. L.; Haynes, R. F.; Milne, D. K.; Wellington, K. J.
Affiliation:
AA(Commonwealth Scientific and Industrial Research Organization, Div. of Radiophysics, Epping, New South Wales, Australia), AB(Commonwealth Scientific and Industrial Research Organization, Div. of Radiophysics, Epping, New South Wales, Australia), AC(Commonwealth Scientific and Industrial Research Organization, Div. of Radiophysics, Epping, New South Wales, Australia), AD(Commonwealth Scientific and Industrial Research Organization, Div. of Radiophysics, Epping, New South Wales, Australia)
Publication:
Royal Astronomical Society, Monthly Notices, vol. 200, Sept. 1982, p. 1143-1151. (MNRAS Homepage)
Publication Date:
09/1982
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
MICROWAVE EMISSION, RADIO TELESCOPES, STELLAR STRUCTURE, SUPERNOVA REMNANTS, ASTRONOMICAL MAPS, CRAB NEBULA, SPECTRAL RESOLUTION, STELLAR ENVELOPES
Comment:
A&AA ID. AAA032.125.014
Bibliographic Code:
1982MNRAS.200.1143C

Abstract

Four small-diameter supernova remnants (SNRs) have been mapped with the Fleurs synthesis radio telescope; the maps are the first to reveal structure in these SNRs, all of which lie near zero declination, where most other synthesis telescopes do not provide satisfactory north-south resolution. Three of the sources (G15.9 + 0.2, G27.4 + 0.0 and G41.1-0.3) show clear indications of a shell structure; the remaining source, G39.2-0.3, may be a rarer variety of SNR showing centrally concentrated emission similar to the Crab Nebula.

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