The supernova remnant E0102.2-72.2 is the brightest in the Small Magellanic Cloud at X-ray wavelengths. This object, which is remarkable because of its high velocity (≡4000 km s-1) oxygen-rich optical emission, appears to be similarly remarkable at X-ray wavelengths. The high resolution imager data can be quite well described by a thick ring with a radius of ≡19arcsec (6 pc at a distance of 63 kpc). The imaging proportional counter X-ray spectral data can be best fit by a single emission line of energy ≡0.9 keV. It seems likely that this is the emission from a plasma of almost pure neon.
IAU Colloq. 101: Supernova Remnants and the Interstellar Medium
- Pub Date: