Astron. Astrophys. 325, 295-299
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Non Crab-like Plerions?
L. Woltjer1, M. Salvati2, F. Pacini2,3, and R. Bandiera2
1Observatoire de Haute Provence, F-04870 St. Michel
Received 6 December 1996 / Accepted 17 March 1997
Several plerionic Supernova Remnants have spectral properties different from the Crab Nebula and do not show the presence of a central observable pulsar. We discuss in particular the cases of CTB87 and 3C58, and show that their properties cannot be fitted in the canonical scenario; a non-standard evolution of the pulsar output seems to be required.
Key words: ISM: supernova remnants - pulsars: general - acceleration of particles
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© European Southern Observatory (ESO) 1997