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The violent interstellar medium in Messier 31Taurus observations in the line of H alpha and Very Large Array (VLA) HI mapping of the HII complex No. 722 in M31, reveal what seems to be a spherical cavity 330 pc in diameter blown out by a stellar association of over 20(exp 6) years old. Evidence of induced star formation which was initiated less than 5(exp 6) years ago is present in the form of bright HII emission and numerous O, B and Wolf-Rayet stars which are found within the shell surrounding the cavity. The energy necessary to create the HI shell is estimated to be about 5(exp 51) erg.
Document ID
19910004865
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Brinks, Elias (Royal Greenwich Observatory Hailsham (England)., United States)
Braun, Robert (National Radio Astronomy Observatory Socorro, NM., United States)
Unger, Stephen W. (Royal Greenwich Observatory Hailsham, United Kingdom)
Date Acquired
September 6, 2013
Publication Date
July 1, 1990
Publication Information
Publication: NASA, Ames Research Center, The Interstellar Medium in External Galaxies: Summaries of Contributed Papers
Subject Category
Astrophysics
Accession Number
91N14178
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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