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Particle acceleration by ultrarelativistic shocks: theory and simulations
We consider the acceleration of charged particles near ultrarelativistic shocks, with Lorentz factor . We present simulations of the acceleration process and compare these with results fromExpand
Particle Acceleration at Ultrarelativistic Shocks: An Eigenfunction Method
We extend the eigenfunction method of computing the power-law spectrum of particles accelerated at a relativistic shock front to apply to shocks of arbitrarily high Lorentz factor. In agreement withExpand
The IceCube Collaboration
The AMANDA-II data collected during the period 2000–2003 have been analysed in a search for a diffuse flux of high-energy extra-terrestrial muon neutrinos from the sum of all sources in the Universe.Expand
First year performance of the IceCube neutrino telescope
Abstract The first sensors of the IceCube neutrino observatory were deployed at the South Pole during the austral summer of 2004–2005 and have been producing data since February 2005. One string ofExpand
Ultra-high-energy cosmic ray acceleration by relativistic blast waves
We consider the acceleration of charged particles at the ultrarelativistic shocks, with Lorentz factors Γs≫1 relative to the upstream medium, arising in relativistic fireball models of gamma-rayExpand
Pulsar wind nebulae in supernova remnants Spherically symmetric hydrodynamical simulations
A spherically symmetric model is presented for the interaction of a pulsar wind with the associated supernova remnant. This results in a pulsar wind nebula whose evolution is coupled to the evolutionExpand
Particle acceleration at ultra-relativistic shocks - Gamma-ray burst afterglow spectra and UHECRs
We consider particle acceleration of the Fermi type at the ultra-relativistic shock bounding an expanding relativistic fireball. We distinguish between the initial shock crossing cycle, in whichExpand
Mass entrainment and turbulence-driven acceleration of ultra-high energy cosmic rays in Centaurus A
Observations of the FR I radio galaxy Centaurus A in radio, X-ray and gamma-ray bands provide evidence for lepton acceleration up to several TeV and clues about hadron acceleration to tens of EeV.Expand
Forming a constant density medium close to long gamma-ray bursts
Aims. The progenitor stars of long Gamma-Ray Bursts (GRBs) are thought to be Wolf-Rayet stars, which generate a massive and energetic wind. Nevertheless, about 25 percent of all GRB afterglows lightExpand