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Title:
Symmetry of the radio emission from two high-latitude supernova remnants, G296.5 + 10.0 and G327.6 + 14.6 (SN 1006)
Authors:
Roger, R. S.; Milne, D. K.; Kesteven, M. J.; Wellington, K. J.; Haynes, R. F.
Affiliation:
AA(Dominion Radio Astrophysical Observatory, Penticton, Canada), AB(CSIRO, Div. of Radiophysics, Epping, Australia), AC(CSIRO, Div. of Radiophysics, Epping, Australia), AD(CSIRO, Div. of Radiophysics, Epping, Australia), AE(CSIRO, Div. of Radiophysics, Epping, Australia)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 332, Sept. 15, 1988, p. 940-953. (ApJ Homepage)
Publication Date:
09/1988
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL MODELS, RADIO SOURCES (ASTRONOMY), SUPERNOVA REMNANTS, X RAY SOURCES, ASTRONOMICAL SPECTROSCOPY, HIGH RESOLUTION, MAGNETIC FIELD CONFIGURATIONS, SPATIAL DISTRIBUTION, SYMMETRY
DOI:
10.1086/166703
Bibliographic Code:
1988ApJ...332..940R

Abstract

The authors present new high-resolution radio observations at 843 MHz of the shell supernova remnants G296.5+10.0 and G327.6+14.6. The remnants show a high degree of bilateral symmetry, both in their emission intensities and in the outer boundaries of the emission. Both remnants show weak emission and indistinct boundaries near the axes of symmetry. The authors explore various explanations of the symmetry, which is apparent in both the radio and X-ray maps, and extend an old idea that it is the result of the expansion of a remnant into a region with an orderly alignment of the ambient interstellar magnetic field oriented with a substantial component normal to the line of sight.

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