Multiphase ISM simulations show PeV cosmic-ray diffusion coefficients reach 10^30 cm^2 s^-1, with perpendicular transport boosted at thermal phase boundaries while overall transport is controlled by trans-Alfvenic warm and unstable gas.
IMAGINE: a comprehensive view of the interstellar medium, Galactic magnetic fields and cosmic rays.JCAP2018, 2018, 049, [arXiv:astro-ph.GA/1805.02496]
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Diffusion of PeV Cosmic Rays in the Turbulent and Multiphase Interstellar Medium
Multiphase ISM simulations show PeV cosmic-ray diffusion coefficients reach 10^30 cm^2 s^-1, with perpendicular transport boosted at thermal phase boundaries while overall transport is controlled by trans-Alfvenic warm and unstable gas.