Chemistry as a diagnostic of prestellar core geometry
@article{Tritsis2016ChemistryAA, title={Chemistry as a diagnostic of prestellar core geometry}, author={Aris Tritsis and Konstantinos Tassis and Karen Willacy}, journal={Monthly Notices of the Royal Astronomical Society}, year={2016}, volume={458}, pages={789-801} }
We present a new method for assessing the intrinsic 3D shape of prestellar cores from molecular column densities. We have employed hydrodynamic simulations of contracting, isothermal cores considering three intrinsic geometries: spherical, cylindrical/filamentary and disk-like. We have coupled our hydrodynamic simulations with non-equilibrium chemistry. We find that a) when cores are observed very elongated (i.e. for aspect ratios $\le$ 0.15) the intrinsic 3D geometry can be probed by their 2D…
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AT and CF acknowledge funding provided by the Australian Research Council’s Discovery Projects (grants DP150104329 and DP170100603), the ANU
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