An XMM-Newton X-ray View of Supernova Remnant W49B: Revisiting its Recombining Plasmas and Progenitor Type

@article{Sun2020AnXX,
  title={An XMM-Newton X-ray View of Supernova Remnant W49B: Revisiting its Recombining Plasmas and Progenitor Type},
  author={Lei Sun and Yang Chen},
  journal={arXiv: High Energy Astrophysical Phenomena},
  year={2020}
}
  • Lei Sun, Yang Chen
  • Published 2020
  • Physics
  • arXiv: High Energy Astrophysical Phenomena
  • We present a comprehensive X-ray spectroscopy and imaging study of supernova remnant W49B using archival XMM-Newton observations. The overionization state of the shocked ejecta in W49B is clearly indicated by the radiative recombination continua of Si XIV, S XV, and Fe XXV, combined with the Ly$\alpha$ lines of Ca and Fe. The line flux images of W49B indicate high emission measures of the central bar-like region for almost all the emission lines, while the equivalent width maps reveal a… CONTINUE READING

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