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High-resolution X-ray and radio images of the galactic SNR G39.2-0.3Images of the galactic supernova remnant G39.2-0.3 at radio, infrared, and X-ray wavelengths are presented. The 6 and 20 cm VLA maps reveal a shell-brightened source with substantial emission in the central regions and a rather high degree of linear polarization throughout; no significant spectral variations over the face of the remnant are apparent. The Einstein X-ray image also shows emission from both the limb and the central region, while the IRAS data show no flux that can be unambiguously associated with the remnant, although an uncataloged small H II region is seen adjacent to the shell. It is concluded that, contrary to previous suggestions, there is no evidence for a Crab-like component in G39.2-0.3, and that the central emission plateau is most likely simply a shell filament which happens to fall across the center of the remnant.
Document ID
19880034254
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Becker, R. H.
(California, University Davis; Lawrence Livermore National Laboratory, Livermore, CA, United States)
Helfand, D. J.
(Columbia University New York, United States)
Date Acquired
August 13, 2013
Publication Date
December 1, 1987
Publication Information
Publication: Astronomical Journal
Volume: 94
ISSN: 0004-6256
Subject Category
Astronomy
Accession Number
88A21481
Funding Number(s)
CONTRACT_GRANT: NAG8-497
CONTRACT_GRANT: NSF AST-86-17184
CONTRACT_GRANT: NAG8-558
CONTRACT_GRANT: JPL-957682
Distribution Limits
Public
Copyright
Other

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