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Particle Acceleration in Relativistic Flows

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  • Mathematics
  • Physics


A common property shared by different astrophysical sources of TeV gamma-rays is the presence of bulk motion at relativistic speed. The intrinsic spectra of the nonthermal radiating particles in these sources also show interesting similarities. I will present recent work suggesting that two distinct acceleration mechanisms could be at work: the stochastic first-order Fermi process at shocks, together with non-stochastic acceleration in the induced electric field of a relativistic current sheet.

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