A theoretical astrophysicist from the University of Kansas may have solved a nearly two-decade-old mystery over the origins of an unusual "zebra" pattern seen in high-frequency radio pulses from the ...

Medvedev modeled wave diffraction off a circular reflecting region with radially varying index of refraction outside of it to better understand the Crab Nebula’s zebra pattern.

It contains a pulsar, designated PSR J1811−1925, and a pulsar wind nebula. The PWN in G11.2−0.3 is powered by PSR J1811−1925, which is located near the SNR's shell.