3D MHD simulation of a pulsationally-driven MRI decretion disc

  title={3D MHD simulation of a pulsationally-driven MRI decretion disc},
  author={Sean Ressler},
  journal={Monthly Notices of the Royal Astronomical Society},
  • S. Ressler
  • Published 7 October 2021
  • Physics
  • Monthly Notices of the Royal Astronomical Society
We explore the pulsationally driven orbital mass ejection mechanism for Be star disc formation using isothermal, 3D magnetohydrodynamic (MHD) and hydrodynamic simulations. Non-radial pulsations are added to a star rotating at 95 per cent of critical as an inner boundary condition that feeds gas into the domain. In MHD, the initial magnetic field within the star is weak. The hydrodynamics simulation has limited angular momentum transport, resulting in repeating cycles of mass accumulation into… 

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