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Abstract
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.
Document Type
Article
Publication Date
6-1-1994
Digital Object Identifier (DOI)
http://dx.doi.org/10.1086/174196
Repository Citation
Low, Mordecai-Mark Mac; Elitzur, Moshe; Stone, James M.; and Königl, Arieh, "A Protostellar Jet Model for the Water Masers in W49N" (1994). Physics and Astronomy Faculty Publications. 225.
https://uknowledge.uky.edu/physastron_facpub/225
Notes/Citation Information
Published in The Astrophysical Journal, v. 427, no. 2, p. 914-918.
© 1994. The American Astronomical Society. All rights reserved.
The copyright holder has granted permission for posting the article here.