N2+ fluorescence spectrum of comet C/2016 R2 (PanSTARRS)P. Rousselot, S. E. Anderson, A. Alijah, B. Noyelles, C. Opitom, E. Jehin, D. Hutsemékers and J. ManfroidA&A, 661 (2022) A131DOI: https://doi.org/10.1051/0004-6361/202142829
