51 citations · 127 across the 5 of their papers we have counts for
1 paper · 2 filters
Heather Matheson, Samar Safi-Harb
The absence of a supernova remnant (SNR) shell surrounding the Crab and other plerions (pulsar wind nebulae) has been a mystery for 3 decades. G21.5-0.9 is a particularly intriguin…