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Title:
High-resolution radio observations of five supernova remnants
Authors:
Caswell, J. L.; 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)
Publication:
Royal Astronomical Society, Monthly Notices, vol. 195, Apr. 1981, p. 89-99. (MNRAS Homepage)
Publication Date:
04/1981
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
RADIO ASTRONOMY, RADIO SOURCES (ASTRONOMY), SUPERNOVA REMNANTS, BRIGHTNESS TEMPERATURE, HIGH RESOLUTION, POINT SOURCES, RADIO TELESCOPES, SKY SURVEYS (ASTRONOMY), X RAY SOURCES
Comment:
A&AA ID. AAA029.125.004
Bibliographic Code:
1981MNRAS.195...89C

Abstract

Five supernova remnants have been mapped with high resolution using the Fleurs synthesis radio telescope. Four of the sources (G33.6 + 0.1, G309.2 - 0.6, G315.4 - 0.3 and G320.4 - 1.2) possess shell structures, albeit with considerable distortion; the fifth source, G308.7 + 0.0, has a centrally concentrated brightness distribution reminiscent of the Crab nebula but considerably more elongated. In the general direction of G320.4 - 1.2 there is considerable optical emission but only the brightest features seem to be associated with the radio source; currently available sky survey photographs show no associated optical nebulosity in the direction of the other four remnants.

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