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General properties of HII regions in galaxiesThe structure, electron density, and dimensions of HII regions in galaxies are discussed. These parameters are correlated to the chemical composition gradient along the galactic radius, the dimensions of the three largest HII regions in the galaxy, and the amount of hydrogen in the galaxy, as well as the mass, dimensions, and total optical luminosity of the galaxy. The relationships of HII regions to star formation and galactic nucleus activity are discussed and the kinematic properties of the SB and Sab galaxies are related to the size of HII regions.
Document ID
19790025964
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Smirnov, M. A. (NASA Headquarters Washington, DC United States)
Komberg, B. V. (NASA Headquarters Washington, DC United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1979
Subject Category
Astrophysics
Report/Patent Number
NASA-TM-75700
Report Number: NASA-TM-75700
Accession Number
79N34135
Funding Number(s)
CONTRACT_GRANT: NASW-3199
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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