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1994ApJ...433L..53M - Astrophys. J., 433, L53-L56 (1994/September-3)
The He II Lyman-alpha opacity of the universe.
MADAU P. and MEIKSIN A.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Cosmology: Diffuse Radiation - Cosmology: Observations - Galaxies: Intergalactic Medium - Galaxies: Quasars: Absorption Lines
CDS comments: QSO 2126-258 misprint for 2126-158
Simbad objects: 2
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