A protostellar jet model for the water masers in W49N

Details A protostellar jet model for the water masers in W49N A protostellar jet model for the water masers in W49N

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...427..914m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 427, no. 2, p. 914-918

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Computation

18

Computational Astrophysics, Computerized Simulation, Interstellar Masers, Jet Flow, Protostars, Stellar Models, Velocity Measurement, Water Masers, Expansion, Molecular Gases, Shock Fronts, Star Formation, Stellar Envelopes, Three Dimensional Models

Scientific paper

Observations by Gwinn, Moran, & Reid of the proper motions of water masers in W49N show that they have elongated distribution expanding from a common center. Features with high space velocity only occur far from the center, while low-velocity features occur at all distances. We propose that these observations can be interpreted in terms of a shell of shocked molecular gas that is driven by the expanding cocoon of a high-velocity protostellar jet. We present three-dimensional numerical simulations in support of this interpretation and argue that this source provides a unique oppurtunity for a detailed study of jet-driven cocoons.

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