2012/04/30 by T. Grassi, Tommaso Grassi, S. Bovino +4 · 1 citation
Physics and Astronomy · #Advanced Chemical Physics Studies #Algorithm #Astrophysics #Astrophysics and Star Formation Studies #Computational complexity theory #Computational physics #Computational science #Computer science #Flux (metallurgy) #Galaxy #Interstellar medium #Physics #Reduction (mathematics) #Spectroscopy and Quantum Chemical Studies #Statistical physics #Thermodynamics #Yield (engineering) #astro-ph.CO #astro-ph.IM
paper · pdf · doi:10.1111/j.1365-2966.2012.21537.x
9 pages, 7 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society Main Journal
arxiv created 2012/06/18 · openalex publication_date 2012/08/09 · arxiv updated 2015/06/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 us 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.