* Astronomy

Title: A nebula in your computer: simulating the physics and chemistry of an HII region
Authors: Thomas G. Bisbas

In this contribution we discuss about numerical modelling of nebulae. In particular we emphasise on the dynamical evolution of an HII region and the chemical structure of a Photodissociation region. We do this using the Smoothed Particles Hydrodynamics code SEREN and the recently developed astrochemistry code 3D-PDR, respectively. We show an example application by simulating a cometary globule using these two codes.

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