Energy-dependent polarization angle variability distinguishes reconnection from turbulence as the driver of blazar flares, with Mrk 421 and 1ES 1959+650 data favoring reconnection.
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MHD-PIC simulations find that the non-thermal particle spectral index alpha steepens as alpha proportional to beta to the power 0.5 in the relativistic regime, due to inertial mass density acting as an energy sink that reduces Alfven velocity.
Reconnection in transrelativistic AGN coronae can energize protons to tens of PeV, producing a neutrino spectrum consistent with NGC 1068 observations without tuning the proton spectral slope.
3D kinetic simulations find that merging Lundquist flux tubes produce delayed reconnection onset in 3D, a normalized reconnection rate of 0.08-0.10, and nonthermal particle spectra with power-law index 1.6-2.0 and cutoff gamma_cut/sigma_in approximately 50.
A two-component Galactic source model with supernova remnants below 100 TeV and microquasars above, using charge-dependent cutoffs, accounts for cosmic-ray spectra, composition, and the all-particle spectrum up to PeV energies while ruling out nuclei-dependent cutoffs.
citing papers explorer
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Energy-Dependent Polarization Angle Variability as a Robust Diagnostic for Blazar Flaring Mechanisms
Energy-dependent polarization angle variability distinguishes reconnection from turbulence as the driver of blazar flares, with Mrk 421 and 1ES 1959+650 data favoring reconnection.
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The $\beta$-Dependence of Particle Spectra in Relativistic Turbulent Reconnection
MHD-PIC simulations find that the non-thermal particle spectral index alpha steepens as alpha proportional to beta to the power 0.5 in the relativistic regime, due to inertial mass density acting as an energy sink that reduces Alfven velocity.
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Can magnetic reconnection power neutrino emission from AGN coronae?
Reconnection in transrelativistic AGN coronae can energize protons to tens of PeV, producing a neutrino spectrum consistent with NGC 1068 observations without tuning the proton spectral slope.
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3D Kinetic Simulations of Driven Reconnection in Merging Flux Tubes
3D kinetic simulations find that merging Lundquist flux tubes produce delayed reconnection onset in 3D, a normalized reconnection rate of 0.08-0.10, and nonthermal particle spectra with power-law index 1.6-2.0 and cutoff gamma_cut/sigma_in approximately 50.
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Two kinds of Galactic source populations could explain the cosmic-ray observation up to the "knee" region
A two-component Galactic source model with supernova remnants below 100 TeV and microquasars above, using charge-dependent cutoffs, accounts for cosmic-ray spectra, composition, and the all-particle spectrum up to PeV energies while ruling out nuclei-dependent cutoffs.