Far-Ultraviolet Spectral Images of the Vela Supernova Remnant

  title={Far-Ultraviolet Spectral Images of the Vela Supernova Remnant},
  author={Kaori Nishikida and Jerry Edelstein and Eric J. Korpela and Ravi Sankrit and W. Michael Feuerstein and K. W. Min and Jong-ho Shinn and D-H. Lee and Insoo Yuk and H. Jin and Kwang-il Seon},
  journal={The Astrophysical Journal Letters},
  pages={L171 - L174}
We present far-ultraviolet (FUV) spectral imaging observations of the Vela supernova remnant (SNR) obtained with the SPEAR/FIMS instrument. The Vela SNR extends ~8° in the FUV, and its global spectra are dominated by shock-induced emission lines. We find that the global FUV line luminosities can exceed the 0.1-2.5 keV soft X-ray luminosity by an order of magnitude. The global O VI : C III ratio shows that the Vela SNR has a relatively large fraction of slower shocks compared with the Cygnus… 
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