On determining the primordial helium abundance from the spectra of H II galaxies

1992 ◽  
Vol 401 ◽  
pp. 157 ◽  
Author(s):  
Alison Campbell
Keyword(s):  
Helium Abundance ◽  
Primordial Helium

scholarly journals Measurement of the primordial helium abundance from the intergalactic medium

2018 ◽  
Vol 2 (12) ◽  
pp. 957-961 ◽  
Author(s):  
Ryan J. Cooke ◽  
Michele Fumagalli
Keyword(s):  
Intergalactic Medium ◽  
Helium Abundance ◽  
Primordial Helium

Very Metal-Poor Galaxies and the Primordial Helium Abundance

1994 ◽  
pp. 182-191
Author(s):  
Elena Terlevich ◽  
Evan Skillman ◽  
Roberto Terlevich
Keyword(s):  
Helium Abundance ◽  
Primordial Helium

scholarly journals Determination of the Primordial Helium Abundance Based on NGC 346, an H ii Region of the Small Magellanic Cloud

2019 ◽  
Vol 876 (2) ◽  
pp. 98 ◽  
Author(s):  
Mabel Valerdi ◽  
Antonio Peimbert ◽  
Manuel Peimbert ◽  
Andrés Sixtos
Keyword(s):  
Magellanic Cloud ◽  
Helium Abundance ◽  
Small Magellanic Cloud ◽  
H Ii Region ◽  
Primordial Helium

Spectrophotometry of 12 metal-poor galaxies - Implications for the primordial helium abundance

1983 ◽  
Vol 273 ◽  
pp. 81 ◽  
Author(s):  
D. Kunth ◽  
W. L. W. Sargent
Keyword(s):  
Helium Abundance ◽  
Primordial Helium

scholarly journals The primordial helium abundance from updated emissivities

2013 ◽  
Vol 2013 (11) ◽  
pp. 017-017 ◽  
Author(s):  
Erik Aver ◽  
Keith A Olive ◽  
R.L Porter ◽  
Evan D Skillman
Keyword(s):  
Helium Abundance ◽  
Primordial Helium

μCassiopeiae and the Primordial Helium Abundance—A Critique

1971 ◽  
Vol 27 (4) ◽  
pp. 206-208 ◽  
Author(s):  
John Faulkner
Keyword(s):  
Helium Abundance ◽  
Primordial Helium

scholarly journals Ionization Corrections for Low‐Metallicity HiiRegions and the Primordial Helium Abundance

2000 ◽  
Vol 531 (2) ◽  
pp. 813-819 ◽  
Author(s):  
Sueli M. Viegas ◽  
Ruth Gruenwald ◽  
Gary Steigman
Keyword(s):  
Helium Abundance ◽  
Low Metallicity ◽  
Primordial Helium

A Bayesian Estimate of the Primordial Helium Abundance

1997 ◽  
Vol 489 (2) ◽  
pp. L119-L122 ◽  
Author(s):  
Craig J. Hogan ◽  
Keith A. Olive ◽  
Sean T. Scully
Keyword(s):  
Bayesian Estimate ◽  
Helium Abundance ◽  
Primordial Helium
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