Infrared observations of plerionic supernovae remnants: high-energy astrophysics with ISO

Details Infrared observations of plerionic supernovae remnants: high-energy astrophysics with ISO Infrared observations of plerionic supernovae remnants: high-energy astrophysics with ISO

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999esasp.427..313g&link_type=abstract

The Universe as Seen by ISO. Eds. P. Cox & M. F. Kessler. ESA-SP 427., p. 313

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5

Ism: Supernova Remnants, Pulsars: General, Ism: Individual Objects: G21

Scientific paper

The infrared is a favourable band to extend spectral coverage of Crab-like supernova remnants (plerions), whose spectra are generally known only in the radio and X-ray bands. We observed three plerions with ISOCAM and ISOPHOT, and detect emission which we interpret as synchrotron radiation in CAM observations of the purely plerionic remnant G21.5-0.9 and the plerionic core of the composite remnant 0540-69.3 SNR 0540-69.3, the `Crab twin' in the LMC. We review the available spectral data on these objects in other wavebands, and show that in both cases a simple broken power-law spectral model may satisfactorily account for the entire observed spectrum.

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