Papers › Chempl: a playable package for modeling interstellar chemistry
Chempl: a playable package for modeling interstellar chemistry
Fujun Du
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Astrochemical modeling is needed for understanding the formation and evolution of interstellar molecules, and for extracting physical information from spectroscopic observations of interstellar clouds. 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. Common reaction mechanisms and a three-phase formulation of gas-grain chemistry are implemented by default. It is straightforward to run 0D models with Chempl, and only a small amount of additional code is needed to construct 1D or higher dimensional chemical models. We demonstrate its usage with a few astrochemically relevant examples.
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