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Title:
An Exact Integration Scheme for Radiative Cooling in Hydrodynamical Simulations
Authors:
Townsend, R. H. D.
Publication:
The Astrophysical Journal Supplement, Volume 181, Issue 2, pp. 391-397 (2009). (ApJS Homepage)
Publication Date:
04/2009
Origin:
IOP
ApJ Keywords:
hydrodynamics, methods: numerical, radiation mechanisms: thermal, shock waves
DOI:
10.1088/0067-0049/181/2/391
Bibliographic Code:
2009ApJS..181..391T

Abstract

A new scheme for incorporating radiative cooling in hydrodynamical codes is presented, centered around exact integration of the governing semidiscrete cooling equation. Using benchmark calculations based on the cooling downstream of a radiative shock, I demonstrate that the new scheme outperforms traditional explicit and implicit approaches in terms of accuracy, while remaining competitive in terms of execution speed.
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