Advanced Three Level Approximation for Numerical Treatment of Cosmological Recombination: atlant 1.0

Kholupenko E.E, Ivanchik A.V., Balashev S.A., Varshalovich D.A.

New public numerical code for fast calculations of cosmological recombination of primordial hydrogen-helium plasma is presented. This code is based on the three-level approximation (TLA) model of recombination and allows us to take into account some ``fine'' physical effects of cosmological recombination simultaneously with using fudge factors.

Here you can download the current version of atlant