Chemistry as a diagnostic of prestellar core geometry

@article{Tritsis2016ChemistryAA,
  title={Chemistry as a diagnostic of prestellar core geometry},
  author={A. Tritsis and K. Tassis and K. Willacy},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2016},
  volume={458},
  pages={789-801}
}
  • A. Tritsis, K. Tassis, K. Willacy
  • Published 2016
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • 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… CONTINUE READING
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    References

    SHOWING 1-10 OF 51 REFERENCES
    Shapes of Molecular Cloud Cores and the Filamentary Mode of Star Formation
    • 29
    • PDF
    An analytic column density profile to fit prestellar cores
    • 64
    • PDF
    NON-EQUILIBRIUM CHEMISTRY OF DYNAMICALLY EVOLVING PRESTELLAR CORES. II. IONIZATION AND MAGNETIC FIELD
    • 12
    • PDF
    The shapes of molecular cloud cores in Orion
    • 25
    • PDF
    Molecular Evolution in Collapsing Prestellar Cores
    • 179
    • PDF
    Formation and Collapse of Nonaxisymmetric Protostellar Cores in Planar Magnetic Molecular Clouds
    • 53
    • PDF