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A protostellar jet model for the water masers in W49NObservations 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 ID
19950040617
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Low, Mordecai-Mark Mac
(Univ. of Chicago, Chicago, IL United States)
Elitzur, Moshe
(Univ. of Kentucky, Lexington, KY United States)
Stone, James M.
(Univ. of Maryland, College Park, MD United States)
Konigl, Arieh
(Univ. of Chicago, Chicago, IL United States)
Date Acquired
August 16, 2013
Publication Date
June 1, 1994
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 427
Issue: 2
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
95A72216
Funding Number(s)
CONTRACT_GRANT: NAGW-2379
CONTRACT_GRANT: NSF AST-90-16810
Distribution Limits
Public
Copyright
Other

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