Radiative Transfer Calculations In The Context of Cosmological Recombination

Details Radiative Transfer Calculations In The Context of Cosmological Recombination Radiative Transfer Calculations In The Context of Cosmological Recombination

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21441301d&link_type=abstract

American Astronomical Society, AAS Meeting #214, #413.01; Bulletin of the American Astronomical Society, Vol. 41, p.679

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We present preliminary results of the ionization fractions and hence the CMB power spectrum in the cosmological recombination era by solving both the cosmological rate equations and radiative transfer equations simultaneously. We use our NLTE moving radiative tranfer code PHOENIX and multi-level hydrogen and helium atoms. We work in the comoving frame. Periodic boundary conditions are used and the transfer equation is iterated to solve for the radiation field. Once we have determined the radiation field we solve the energy equation to obtain the matter temperatures which is used to iteratively solve for the ionization fractions from the time dependent rate equations.

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