Photolysis of diatomic molecules as a source of atoms in planetary exospheres R. R. Valiev, A. A. Berezhnoy, I. S. Gritsenko, B. S. Merzlikin, V. N. Cherepanov, T. Kurten and C. Wöhler A&A, 633 (2020) A39 Published online: 08 January 2020 DOI: 10.1051/0004-6361/201936230