G21.5-0.9
Crab-like SNR with an extended X-ray halo
In order to compare XMM and Chandra results with those from ASCA, full remnant extracted (XMM/Chandra 165ö radius, ASCA 240ö radius)
Power-law spectrum dominates
PN, MOS1, MOS2, ACIS-S3, SIS0, SIS1, GIS2, GIS3