A. Fuente, S. García-Burillo, M. Gerin, J. R. Rizzo, A. Usero, D. Teyssier, E. Roueff, and J. Le Bourlot
Detection of CO⁺ in the Nucleus of M82,
Astrophys. J. 641, L105–L108 (2006).

Source(s): M82
Facility: IRAM 30 m

Comments:
Two fine structure components of the N = 2 – 1 transition have been detected at 235789.64 and 236062.55 GHz, respectively.
A tentative detection of the N = 1 – 0 fs components had been recorded few years earlier by:
A. Fuente, J. H. Black, J. Martín-Pintado, A. Rodríguez-Franco, S. García-Burillo, P. Planesas, and J. Lindholm
Tentative Detection of CO⁺ toward Cygnus A,
Astrophys. J. 545, L113–L116 (2000).

Contributor(s): H. S. P. Müller, 07/2010