The primordial helium abundance

I present a brief review on the determination of the primordial helium abundance by unit mass, YP. I discuss the importance of the primordial helium abundance in: (a) cosmology, (b) testing the standard big bang nucleosynthesis, (c) studying the physical conditions in H II regions, (d) providing the...

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Published inCurrent science (Bangalore) Vol. 95; no. 9; pp. 1165 - 1176
Main Author Peimbert, Manuel
Format Journal Article
LanguageEnglish
Published Current Science Association 10.11.2008
Subjects
Astronomical objects
Galactic chemical evolution
Galaxies
H II regions
Helium
Hydrogen
Metal abundance
Milky Way Galaxy
SPECIAL SECTION: TWAS SCIENCE FRONTIERS
Stars
Stellar masses
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Summary:I present a brief review on the determination of the primordial helium abundance by unit mass, YP. I discuss the importance of the primordial helium abundance in: (a) cosmology, (b) testing the standard big bang nucleosynthesis, (c) studying the physical conditions in H II regions, (d) providing the initial conditions for stellar evolution models, and (e) testing the galactic chemical evolution models.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0011-3891