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The early evolution of giant H II regions formed by supernova explosionsThe evolution of a giant H II region, which cools after an initial ionization, is discussed. The discussion is applied to the Vela X and Tycho supernovae. Other giant H II regions might not be as easily detectable as the Vela X region. The Tycho region may be just detectable in the O(II) or O(III) optical lines or as a hole in the 21-cm emission line profiles, as is suggested in the data. These giant H II regions last appreciably longer than the continuum radio sources within them.
Document ID
19720004113
Document Type
Conference Paper
Authors
Kafatos, M. C. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Date Acquired
August 6, 2013
Publication Date
September 1, 1971
Publication Information
Publication: NASA. Goddard Space Flight Center The Gum Nebula and Related Probl.
Subject Category
SPACE SCIENCES
Funding Number(s)
CONTRACT_GRANT: NSF GP-11453
CONTRACT_GRANT: NGL-22-009-019
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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