Arc-minute-scale studies of the interstellar gas towards HESSJ1804$-$216: Still an unidentified TeV $\gamma$-ray source

K. Feijen, G. Rowell, S. Einecke +5

The Galactic TeV $\gamma$-ray source HESSJ1804$-$216 is currently an unidentified source. In an attempt to unveil its origin, we present here the most detailed study of interstellar…