RECFAST: Calculate the Recombination History of the Universe
Abstract
RECFAST calculates the recombination of H, HeI, and HeII in the early Universe; this involves a line-by-line treatment of each atomic level. It differs in comparison to previous calculations in two major ways: firstly, the ionization fraction x_e is approximately 10% smaller for redshifts
- Publication:
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Astrophysics Source Code Library
- Pub Date:
- June 2011
- Bibcode:
- 2011ascl.soft06026S
- Keywords:
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- Software