Astrochemistry

Chempl: A Playable Package For Modeling Interstellar Chemistry

By Keith Cowing
Press Release
astro-ph.SR
July 22, 2020
Filed under
Chempl: A Playable Package For Modeling Interstellar Chemistry
Example results from a basic dark cloud model. Solid curves are calculated without any dust grain chemistry except H2 formation, and dashed curves with the same color are based on a full three-phase chemical network.
astro-ph.SR

Astrochemical modeling is needed for understanding the formation and evolution of interstellar molecules, and for extracting physical information from spectroscopic observation of molecular lines.

The modeling usually involves handling of a chemical reaction network and solution of a set of coupled nonlinear ordinary differential equations, which is traditionally done using code written in compiled languages such as Fortran or C/C++. While being computationally efficient, there is room for improvement in the ease of use and interactivity for such an approach. In this work we present a new public code named Chempl, which emphasizes interactivity in a modern Python environment, while remaining computationally efficient. We demonstrate its usage with a few astrochemically relevant examples.

Fujun Du
Comments: Submitted for review
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Instrumentation and Methods for Astrophysics (astro-ph.IM); Chaotic Dynamics (nlin.CD)
Cite as: arXiv:2007.11294 [astro-ph.SR] (or arXiv:2007.11294v1 [astro-ph.SR] for this version)
Submission history
From: Fujun Du
[v1] Wed, 22 Jul 2020 09:28:52 UTC (196 KB)
https://arxiv.org/abs/2007.11294
Astrobiology, Astrochemistry

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