2023
DOI: 10.1093/mnras/stac3828
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A comparison of numerical methods for computing the reionization of intergalactic hydrogen and helium by a central radiating source

Abstract: We compare numerical methods for solving the radiative transfer equation in the context of the photoionization of intergalactic gaseous hydrogen and helium by a central radiating source. Direct integration of the radiative transfer equation and solutions using photon packets are examined, both for solutions to the time-dependent radiative transfer equation and in the infinite-speed-of-light approximation. The photon packet schemes are found to be more generally computationally efficient than a direct integrati… Show more

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