Far Ultraviolet Spectral Images of the Vela Supernova Remnant

Details Far Ultraviolet Spectral Images of the Vela Supernova Remnant Far Ultraviolet Spectral Images of the Vela Supernova Remnant

2006-01-26

arxiv.org/abs/astro-ph/0601586v1

Astrophys.J. 644 (2006) L171-L174

Astronomy and Astrophysics

Astrophysics

Accepted by ApJL

Scientific paper

10.1086/505197

We present far-ultraviolet (FUV) spectral-imaging observations of the Vela supernova remnant (SNR), obtained with the Spectroscopy of Plasma Evolution from Astrophysical Radiation (SPEAR) instrument, also known as FIMS. The Vela SNR extends 8 degrees 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 Loop.

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