Interstellar comet 2I/Borisov as seen by MUSE: C${}_2$, NH${}_2$ and red CN detections

Michele T. Bannister, Cyrielle Opitom, Alan Fitzsimmons +11

We report the clear detection of C${}_2$ and of abundant NH${}_2$ in the first prominently active interstellar comet, 2I/Borisov. We observed 2I on three nights in November 2019 at opt…