Relativistic outflows in accretion-induced collapse of white dwarfs are modeled as sources of UHECRs, contributing a few 10^43-10^45 erg Mpc^{-3} yr^{-1} assuming iron-like nuclei and sufficient event rates.
COSMOLOGICAL GAMMA RAY BURSTS AND THE HIGHEST ENERGY COSMIC RAYS
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abstract
We discuss a scenario in which the highest energy cosmic rays (CR's) and cosmological $\gamma$-ray bursts (GRB's) have a common origin. This scenario is consistent with the observed CR flux above $10^{20}\text{eV}$, provided that each burst produces similar energies in $\gamma$-rays and in CR's above $10^{20}\text{eV}$. Protons may be accelerated by Fermi's mechanism to energies $\sim10^{20}\text{eV}$ in a dissipative, ultra-relativistic wind, with luminosity and Lorentz factor high enough to produce a GRB. For a homogeneous GRB distribution, this scenario predicts an isotropic, time-independent CR flux.
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POEMMA is a proposed NASA probe-class mission designed to observe ultra-high energy cosmic rays and cosmic neutrinos from space.
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Ultra high-energy cosmic rays from relativistic outflows in accretion induced collapse of white dwarfs
Relativistic outflows in accretion-induced collapse of white dwarfs are modeled as sources of UHECRs, contributing a few 10^43-10^45 erg Mpc^{-3} yr^{-1} assuming iron-like nuclei and sufficient event rates.
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POEMMA (Probe of Extreme Multi-Messenger Astrophysics) design
POEMMA is a proposed NASA probe-class mission designed to observe ultra-high energy cosmic rays and cosmic neutrinos from space.