X-ray and Radio Observations of the gamma Cygni Supernova Remnant G78.2+2.1

D. A. Leahy, K. Green, S. Ranasinghe

We analyse \textit{ROSAT} and \textit{Chandra} ACIS X-ray observations and HI absorption spectra of the $\gamma$ Cygni supernova remnant (G78.2+2.1, DR4). The \textit{ROSAT} All-Sky-Sur…