Spectral curvature and breaks from Fermi acceleration at oblique shocks
Sign Up to like & getrecommendations! Published in 2025 at "Monthly Notices of the Royal Astronomical Society: Letters"
DOI: 10.1093/mnrasl/slaf113
Abstract: A major attraction of diffusive shock acceleration is the prediction of power-law spectra for energetic particle distributions. However, this property is not fundamental to the theory. We demonstrate that for planar shocks with an oblique… read more here.
Keywords: fermi acceleration; oblique shocks; spectral curvature; breaks fermi ... See more keywords
First-Principles Fermi Acceleration in Magnetized Turbulence.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.215101
Abstract: This Letter provides a concrete implementation of Fermi's model of particle acceleration in magnetohydrodynamic (MHD) turbulence, connecting the rate of energization to the gradients of the velocity of magnetic field lines, which it characterizes within… read more here.
Keywords: acceleration magnetized; fermi acceleration; acceleration; turbulence ... See more keywords