Gravitationally-Neutral Universe
نویسندگان
چکیده
منابع مشابه
How Exactly Did the Universe Become Neutral?
We present a reÐned treatment of H, He I, and He II recombination in the early universe. The di†erence from previous calculations is that we use multilevel atoms and evolve the population of each level with redshift by including all bound-bound and bound-free transitions. In this framework we follow several hundred atomic energy levels for H, He I, and He II combined. The main improvements of t...
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ژورنال
عنوان ژورنال: Journal of Modern Physics
سال: 2014
ISSN: 2153-1196,2153-120X
DOI: 10.4236/jmp.2014.515153