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Gravitational fragmentation - A comparison with W49AThe process of gravitational fragmentation of molecular clouds is investigated through a comparison of numerical and observational results. The expected millimeter wave molecular line emission from a model fragmenting cloud generated by a numerical hydrodynamic simulation is calculated and compared with observations of HCO(+) from the star-forming region W49A. This investigation suggests that the rotating ring of H II regions, the necklace in W49A, may have formed in the gravitational fragmentation of a flattened rotating molecular cloud.
Document ID
19920035417
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/170821
Authors
Keto, Eric R. (Smithsonian Astrophysical Observatory, Cambridge, MA; Illinois, University Urbana, United States)
Lattanzio, John C. (Monash University Clayton, Australia; California, University, Berkeley, United States)
Monaghan, Joe J. (Monash University Clayton, Australia)
Date Acquired
August 15, 2013
Publication Date
December 20, 1991
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 383
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
92A18041
Funding Number(s)
CONTRACT_GRANT: W-7405-ENG-48
Distribution Limits
Public
Copyright
Other

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