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H ii Regions as Probes of Galaxy Evolution and the Properties of Massive Stars
Donald R. Garnett
Publications of the Astronomical Society of the Pacific
Vol. 105, No. 691 (1993 September), pp. 996-998
Published by: Astronomical Society of the Pacific
Stable URL: http://www.jstor.org/stable/40680151
Page Count: 3
You can always find the topics here!Topics: Ionization, Visible spectrum, Nebulae, Emission spectra, Oxygen, Photoionization, Galaxies, H II regions, Metal abundance, Stellar atmospheres
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The use of H II regions as probes to study the chemical evolution of galaxies and the spectral properties of hot, massive stars is reviewed. The observable parameters for this task are the physical conditions, elemental abundances, and ionization balance in the ionized gas. Some outstanding uncertainties in the determination of these parameters and some approaches to remedy or circumvent the problems are discussed.
Publications of the Astronomical Society of the Pacific © 1993 The University of Chicago Press