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Time-Dependent Corrections to the Ly-alpha Escape Probability During Cosmological Hydrogen Recombination
J. Chluba, R. A. Sunyaev
We consider the effects connected with the detailed radiative transfer during the epoch of cosmological recombination on the ionization history of our Universe. We focus on the esc…
Rico: An Accurate Cosmological Recombination Code
W. A. Fendt, J. Chluba, J. A. Rubino-Martin +1
We present Rico, a code designed to compute the ionization fraction of the Universe during the epoch of hydrogen and helium recombination with an unprecedented combination of speed…
Evolution of low-frequency features in the CMB spectrum due to stimulated Compton scattering and Doppler-broadening
J. Chluba, R. A. Sunyaev
We discuss a new solution of the Kompaneets-equation for physical situations in which low frequency photons, forming relatively narrow spectral details, are Compton scattered in an…
Pre-recombinational energy release and narrow features in the CMB spectrum
J. Chluba, R. A. Sunyaev
Energy release in the early Universe (z<~ 2x10^6) should lead to some broad spectral distortion of the cosmic microwave background (CMB) radiation field, which can be characterized…
The Richness and Beauty of the Physics of Cosmological Recombination: The Contributions from Helium
R. A. Sunyaev, J. Chluba
The physical ingredients to describe the epoch of cosmological recombination are amazingly simple and well-understood. This fact allows us to take into account a very large variety…