Herschel/HIFI measurements of the ortho/para ratio in water towards Sagittarius B2(M) and W31C

D. C. Lis, T. G. Phillips, P. F. Goldsmith +74

We present Herschel/HIFI observations of the fundamental rotational transitions of ortho- and para-H${}_2^{16}$O and H${}_2^{18}$O in absorption towards Sagittarius~B2(M) and W31C. The…