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Revista mexicana de astronomía y astrofísica
versión impresa ISSN 0185-1101
Resumen
CASTELLANOS-RAMIREZ, A. et al. KIMYA, a code for solving chemical reaction networks in astrophysics. Rev. mex. astron. astrofis [online]. 2018, vol.54, n.2, pp.409-422. ISSN 0185-1101.
KIMYA is a new code for solving the system of differential equations describing the temporal behavior of a chemical network. This paper presents a simple and easy to implement numerical method and tests of its accuracy. KIMYA was designed for incorporating a chemical network into multi-dimensional gasdynamical simulations. In order to test our code we compute three numerical simulations: a model of the chemical evolution of a dark cloud (which we compare with previous calculations), and a model of nitric oxide formation during a lightning discharge simulated with a laser pulse. The latter is done with both a single parcel calculation, as well as a fully hydrodynamical/chemical model, which we compare with results from a laboratory experiment.
Palabras llave : astrochemistry; hydrodynamics; ISM: molecules; methods: numerical; molecular processes; shock waves.