The line-of-sight distribution of water in the SgrB2 complex

  title={The line-of-sight distribution of water in the SgrB2 complex},
  author={Claudia Comito and Peter Schilke and Maryvonne Gerin and Thomas G. Phillips and Jonas Zmuidzinas and Dariusz C. Lis},
  journal={Astronomy and Astrophysics},
We report the detection, with the Caltech Submillimeter Observatory ? , of the 894-GHz HDO(11;1 00;0) transition, observed in absorption against the background continuum emission of the SgrB2 cores M and N. Radiative transfer modeling of this feature, together with the published data set of mm and submm HDO and H 18 O transitions, suggests that ground- state absorption features from deuterated and non-deuterated water trace dierent gas components along the line of sight. In particular, while… 

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