The formation of CO2 through consumption of gas-phase CO on vacuum-UV irradiated water ice J. Terwisscha van Scheltinga, N. F. W. Ligterink, A. D. Bosman, M. R. Hogerheijde and H. Linnartz A&A, 666 (2022) A35 Published online: 03 October 2022 DOI: 10.1051/0004-6361/202142181