Protostars and Planets VI, Heidelberg, July 15-20, 2013

Poster 1B083

Waterfalls Around Protostars

Mottram, J.C. (Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, the Netherlands)
van Dishoeck, E.F. (Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, the Netherlands, Max-Planck-Institut fur Extraterresterische Physik, Giessenbachstrasse 1, 85748 Garching, Germany)
Schmalzl, M. (Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, the Netherlands)
Kristensen, L.E. (Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA)
Visser, R. (Department of Astronomy, University of Michigan, MI, USA)
Hogerheijde, M.R. (Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, the Netherlands)
Bruderer, S. (Max-Planck-Institut fur Extraterresterische Physik, Giessenbachstrasse 1, 85748 Garching, Germany)

Abstract:
Water is uniquely sensitive to motion of any kind within the protostellar environment due to its large Einstein A coefficient. As part of the ‘Water in star-forming regions with Herschel’ (WISH) survey, infall signatures were detected in the HIFI water spectra observed towards 5 Class 0/I protostars observed. The combination of observations of multiple water transitions and full 1-D non-LTE radiative transfer models of protostellar envelopes provides a self-consistent way to probe the physics and chemistry of infalling envelope material.

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