60 citations · 180 across the 11 of their papers we have counts for
4 papers · 1 filter
HeII->HeI Recombination of Primordial Helium Plasma Including the Effect of Neutral Hydrogen
E. E. Kholupenko, A. V. Ivanchik, D. A. Varshalovich
The HeII->HeI recombination of primordial helium plasma (z = 1500 - 3000) is considered in terms of the standard cosmological model. This process affects the formation of cosmic mi…
Rapid HeII->HeI recombination and radiation concerned with this process
E. E. Kholupenko, A. V. Ivanchik, D. A. Varshalovich
Recombination of the primordial helium plasma (HeII->HeI, ) is considered. This process has an effect on the CMBR anisotropy and CMBR spectrum distortion. In…
Two-Photon 2s<->1s Transitions during Recombination of Hydrogen in the Universe
E. E. Kholupenko, A. V. Ivanchik
Based on the standard cosmological model, we calculate the correction to the rate of two-photon 2s<->1s transitions in the hydrogen atom under primordial hydrogen plasma recombinat…
CMBR distortion concerned with recombination of the primordial hydrogen plasma
E. E. Kholupenko, A. V. Ivanchik, D. A. Varshalovich
CMBR distortion concerned with recombination of the primordial plasma is calculated in frequency band from 1 GHz to 100 GHz in the frame of the standard cosmological model for diff…