Complexity reduction of astrochemical networks

We present a new computational scheme aimed at reducing the complexity of the chemical networks in astrophysical models, one which is shown to markedly improve their computational efficiency. It contains a flux-reduction scheme that permits to deal with both large and small systems. This procedure i...

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Bibliographic Details
Published in:arXiv.org 2012-06
Main Authors: Grassi, T, Bovino, S, Gianturco, F A, Baiocchi, P, Merlin, E
Format: Article
Language:English
Subjects:
Astronomical models
Complexity
Computing time
Interstellar chemistry
Interstellar matter
Networks
Organic chemistry
Reduction
Online Access:Get full text
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Summary:We present a new computational scheme aimed at reducing the complexity of the chemical networks in astrophysical models, one which is shown to markedly improve their computational efficiency. It contains a flux-reduction scheme that permits to deal with both large and small systems. This procedure is shown to yield a large speed-up of the corresponding numerical codes and provides good accord with the full network results. We analyse and discuss two examples involving chemistry networks of the interstellar medium and show that the results from the present reduction technique reproduce very well the results from fuller calculations.
ISSN:2331-8422
DOI:10.48550/arxiv.1204.6666