UV and X-ray observations of the reverse shock in the SMC SNR 1E 0102.2-7219

Details UV and X-ray observations of the reverse shock in the SMC SNR 1E 0102.2-7219 UV and X-ray observations of the reverse shock in the SMC SNR 1E 0102.2-7219

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004head....8.2417s&link_type=abstract

American Astronomical Society, HEAD meeting #8, #24.17; Bulletin of the American Astronomical Society, Vol. 36, p.951

Astronomy and Astrophysics

Astronomy

Scientific paper

We observed the O-rich supernova remnant (SNR) 1E 0102.2-7219 in the Small Magellanic Cloud (SMC) with the Far Ultraviolet Spectroscopic Explorer (FUSE). We used the medium resolution aperture (MDRS) in three pointings which covered regions of the bright X-ray ring with different distribution of [O III] in the optical and O VII, O VIII in the X-ray. The ring is caused by the reverse shock propagating in the hot ejecta. In the northern region (N), the FUSE spectrum shows very faint O VI emission. In the northeastern (NE) and the southeastern (SE) parts of the SNR ring, there is significant UV O VI emission with broad O VI lambda lambda 1032, 1038 lines, indicating a velocity dispersion of about 1200 km/s. The emission from the SE pointing appears to be blue-shifted by a few hundred km/s relative to the emission from the NE pointing.
We also analyzed the Chandra ACIS spectra of 1E 0102.2-7219 in the same regions as in the FUSE observations. The fit with a plane-parallel shock plasma model shows that the plasma is in non-equilibrium ionization with a mean shock temperature of ˜2 keV. O and Ne abundances are high (1 - 2 times solar), whereas Fe is sub-solar in all the regions. The ionization timescale ne t is highest in N (> 1011 s cm-3). The velocities and fluxes derived from the O VI emission in UV as well as from the X-ray emission will help to improve the understanding of the structure of the ejecta and thus give hints about the supernova explosion.
This work was supported by the NASA/FUSE grant NAG5-12295, CXC contract NAS8-03060, and NASA grant GO1-2060X.

Affiliated with

Also associated with

No associations

Rating

UV and X-ray observations of the reverse shock in the SMC SNR 1E 0102.2-7219 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with UV and X-ray observations of the reverse shock in the SMC SNR 1E 0102.2-7219, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and UV and X-ray observations of the reverse shock in the SMC SNR 1E 0102.2-7219 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1177942