Galaxy evolution: modelling the role of non-thermal pressure in the interstellar medium

  title={Galaxy evolution: modelling the role of non-thermal pressure in the interstellar medium},
  author={Yuval Birnboim and Shmuel Balberg and R. Teyssier},
  journal={Monthly Notices of the Royal Astronomical Society},
Galaxy evolution depends strongly on the physics of the interstellar medium (ISM). Motivated by the need to incorporate the properties of the ISM in cosmological simulations we construct a simple method to include the contribution of non-thermal components in the calculation of pressure of interstellar gas. In our method we treat three non-thermal components - turbulence, magnetic fields and cosmic rays - and effectively parametrize their amplitude. We assume that the three components settle… 

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