Space‐Based Telescopes See Primordial Helium in Spectra of Distant Quasars

Physics Today ◽  
1995 ◽  
Vol 48 (10) ◽  
pp. 19-21
Author(s):  
Barbara Goss Levi
Keyword(s):  
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
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