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1 results

  • The Early Era: How do protostellar discs form?

  • Marc Joos, Patrick Hennebelle, Andrea Ciardi, Sébastien Fromang
  • Journal:
    Proceedings of the International Astronomical Union / Volume 8 / Issue S299 / June 2013
    Published online by Cambridge University Press:
    06 January 2014, pp. 163-164
    Print publication:
    June 2013
    • Article
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  • Discs are a key element in star and planet formation; however, magnetic fields can efficiently transport angular momentum away from the central region of the collapsing core during the dense core collapse, preventing disc formation. We perform numerical simulations of magnetically supercritical collapsing cores with a misalignment between the rotation axis and the magnetic field (Joos et al. 2012) and in a turbulent environment (Joos et al. 2013). The early formation of massive discs can take place at moderate magnetic intensities if the rotation axis is tilted or in a turbulent environment, because of misalignment and turbulent diffusion.