# Photodissociation in proto-planetary nebulae - Hydrodynamical simulations and solutions for low-velocity multi-lobes

@article{GarcaSegura2010PhotodissociationIP,
title={Photodissociation in proto-planetary nebulae - Hydrodynamical simulations and solutions for low-velocity multi-lobes},
author={Guillermo Garc{\'i}a-Segura},
journal={Astronomy and Astrophysics},
year={2010},
volume={520}
}
Aims. We explore the effects of photodissociation at the stages of post-asymptotic giant branch stars to find a mechanism able to produce multi-polar shapes. Methods. We perform two-dimensional gasdynamical simulations to model the effects of photodissociation in proto-planetary nebulae. Results. We find that post-asymptotic giant branch stars with ∼7000 K or hotter are able to photodissociate a large amount of the circumstellar gas. We compute several solutions for nebulae with low-velocity… Expand
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