X-Ray Emission from SN 1999em in NGC 1637
Chandra ACIS-S X-ray emission from SN 1999em (contour lines), overlayed onto an optical image of the galaxy NGC 1637 (from Pooley at al. 2001; see also the Chandra Chronicles)
Chandra ACIS-S X-ray emission from SN 1999em (contour lines), overlayed onto an optical image of the galaxy NGC 1637 (from Pooley at al. 2001; see also the Chandra Chronicles)