Circumstellar water vapour in M-type AGB stars: constraints from HO(1–1) lines obtained with OdinM. Maercker, F. L. Schöier, H. Olofsson, P. Bergman, U. Frisk, Å. Hjalmarson, K. Justtanont, S. Kwok, B. Larsson, M. Olberg and Aa. SandqvistA&A, 494 1 (2009) 243-252DOI: https://doi.org/10.1051/0004-6361:200810017
O(1
–1
) lines obtained with OdinO(1–1) lines obtained with Odin