A giant shell of ionized gas discovered near M82 with the Dragonfly Spectral Line Mapper pathfinder

Deborah Lokhorst, Roberto Abraham, Imad Pasha +8

We present the discovery of a giant cloud of ionized gas in the field of the starbursting galaxy M82. Emission from the cloud is seen in H$\alpha$ and [NII]$\lambda$6583 in data obtained thou…