The Plerionic Supernova Remnant G21.5-0.9: In and Out

@article{Matheson2005ThePS,
  title={The Plerionic Supernova Remnant G21.5-0.9: In and Out},
  author={H. Matheson and S. Safi-Harb},
  journal={Advances in Space Research},
  year={2005},
  volume={35},
  pages={1099-1105}
}
  • H. Matheson, S. Safi-Harb
  • Published 2005
  • Physics
  • Advances in Space Research
  • Abstract The absence of a supernova remnant (SNR) shell surrounding the Crab and other plerions (pulsar wind nebulae) has been a mystery for three decades. G21.5-0.9 is a particularly intriguing plerionic SNR in which the central powering engine is not yet detected. Early CHANDRA observations revealed a faint extended X-ray halo which was suggested to be associated with the SNR shell; however its spectrum was non-thermal, unlike what is expected from an SNR shell. On the other hand, a plerionic… CONTINUE READING
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