The proton distribution function in weakly magnetized turbulent plasmas

Andrei Gruzinov, Eliot Quataert

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


We calculate the proton distribution function due to heating by subsonic, Alfvénic turbulence in a weakly magnetized collisionless plasma. The distribution function is nonthermal. For nonrelativistic energies it is an exponential of the magnitude of the proton velocity. For ultrarelativistic energies, it can be characterized as a power law with a momentum-dependent slope. We briefly discuss the implications of this work for gamma-ray emission (via pion decay) from hot accretion flows.

Original languageEnglish (US)
Pages (from-to)849-852
Number of pages4
JournalAstrophysical Journal
Issue number2 PART 1
StatePublished - Aug 1 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • MHD
  • Plasmas
  • Turbulence


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