Energy conversion in cometary atmospheres - Hybrid modeling of 67P/Churyumov–Gerasimenko J. Lindkvist, M. Hamrin, H. Gunell, H. Nilsson, C. S. Wedlund, E. Kallio, I. Mann, T. Pitkänen and T. Karlsson A&A, 616 (2018) A81 Published online: 21 August 2018 DOI: 10.1051/0004-6361/201732353