A radio jet associated with the supernova remnant G332.4 + 0.1 (Kes 32)

We report here new observations at 843 MHz of the galactic supernova remnant (SNR) G332.4 + 0.1 (Kes 32). They reveal what appears to be a fairly typical SNR, with a ‘jet-like feature’ emerging from it and expanding into an extensive ‘plume’ of low brightness emission. It is as though matter confine...

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Bibliographic Details
Published in:Nature (London) 1985-07, Vol.316 (6023), p.44-46
Main Authors: Roger, R. S., Milne, D. K., Kesteven, M. J., Haynes, R. F., Wellington, K. J.
Format: Article
Language:English
Subjects:
Humanities and Social Sciences
letter
multidisciplinary
Science
Science (multidisciplinary)
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Summary:We report here new observations at 843 MHz of the galactic supernova remnant (SNR) G332.4 + 0.1 (Kes 32). They reveal what appears to be a fairly typical SNR, with a ‘jet-like feature’ emerging from it and expanding into an extensive ‘plume’ of low brightness emission. It is as though matter confined within the main body of the remnant has broken out through a nozzle and expanded into the plume. However, measurements at 8.4 GHz show the narrow part of the jet to have a relatively flat spectrum and no detectable polarization. Hence, if actually associated with the remnant, the feature is probably either a jet of particles from a central stellar remnant or a pre-existing gas structure ionized by the progenitor star.
ISSN:0028-0836
1476-4687
DOI:10.1038/316044a0