CRASH2: colored packets and other updates

Details CRASH2: colored packets and other updates CRASH2: colored packets and other updates

2008-11-03

arxiv.org/abs/0811.0315v1

Astronomy and Astrophysics

Astrophysics

9 pages, 6 figures, accepted for publication in MNRAS

Scientific paper

10.1111/j.1365-2966.2008.14197.x

In this paper we report on the improvements implemented in the cosmological radiative transfer code CRASH. In particular we present a new multi-frequency algorithm for spectra sampling which makes use of colored photon packets: we discuss the need for the multi-frequency approach, describe its implementation and present the improved CRASH performance in reproducing the effects of ionizing radiation with an arbitrary spectrum. We further discuss minor changes in the code implementation which allow for more efficient performance and an increased precision.

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