We demonstrate that cosmic rays form filamentary structures in the precursors of supernova remnant shocks due to their self-generated magnetic fields. The cosmic ray filamentation results in the growth of a long-wavelength instability, and naturally couples the rapid non-linear amplification on small scales to larger length-scales. Hybrid magnetohydrodynamics-particle simulations are performed to confirm the effect. The resulting large-scale magnetic field may facilitate the scattering of high-energy cosmic rays as required to accelerate protons beyond the knee in the cosmic ray spectrum at supernova remnant shocks. Filamentation far upstream of the shock may also assist in the escape of cosmic rays from the accelerator. © 2011 The Authors ...
Context. We investigate the growth of hydromagnetic waves driven by streaming cosmic rays in the pre...
Supernova remnants (SNRs) have long been assumed to be the source of cosmic rays (CRs) up to the “kn...
Structure formation shocks are believed to be the largest accelerators of cosmic rays in the Univers...
We demonstrate that cosmic rays form filamentary structures in the precursors of supernova remnant s...
We demonstrate that cosmic rays form filamentary structures in the precursors of supernova remnant s...
We used unprecedentedly large two-dimensional and three-dimensional hybrid (kinetic ions - fluid ele...
We used unprecedentedly large 2D and 3D hybrid (kinetic ions – fluid electrons) simulations of non-r...
Observations show that the magnetic field in young supernova remnants (SNRs) is significantly strong...
We investigate the appearance of magnetic field amplification resulting from a cosmic ray escape cur...
X-ray observations of synchrotron rims in supernova remnant (SNR) shocks show evidence of ef-ficient...
Diffusive shock acceleration is the prime candidate for efficient acceleration of cosmic rays. Gala...
Magnetic field amplification is needed to accelerate cosmic cays to PeV energies in supernova remant...
Cosmic ray acceleration through first-order Fermi acceleration in a collisionless plasma relies on e...
Although high-energy cosmic rays (HECRs) and gamma-ray bursts (GRBs) are the most energeti...
First order Fermi acceleration at the outer shocks of supernova remnants can be a very efficient pro...
Context. We investigate the growth of hydromagnetic waves driven by streaming cosmic rays in the pre...
Supernova remnants (SNRs) have long been assumed to be the source of cosmic rays (CRs) up to the “kn...
Structure formation shocks are believed to be the largest accelerators of cosmic rays in the Univers...
We demonstrate that cosmic rays form filamentary structures in the precursors of supernova remnant s...
We demonstrate that cosmic rays form filamentary structures in the precursors of supernova remnant s...
We used unprecedentedly large two-dimensional and three-dimensional hybrid (kinetic ions - fluid ele...
We used unprecedentedly large 2D and 3D hybrid (kinetic ions – fluid electrons) simulations of non-r...
Observations show that the magnetic field in young supernova remnants (SNRs) is significantly strong...
We investigate the appearance of magnetic field amplification resulting from a cosmic ray escape cur...
X-ray observations of synchrotron rims in supernova remnant (SNR) shocks show evidence of ef-ficient...
Diffusive shock acceleration is the prime candidate for efficient acceleration of cosmic rays. Gala...
Magnetic field amplification is needed to accelerate cosmic cays to PeV energies in supernova remant...
Cosmic ray acceleration through first-order Fermi acceleration in a collisionless plasma relies on e...
Although high-energy cosmic rays (HECRs) and gamma-ray bursts (GRBs) are the most energeti...
First order Fermi acceleration at the outer shocks of supernova remnants can be a very efficient pro...
Context. We investigate the growth of hydromagnetic waves driven by streaming cosmic rays in the pre...
Supernova remnants (SNRs) have long been assumed to be the source of cosmic rays (CRs) up to the “kn...
Structure formation shocks are believed to be the largest accelerators of cosmic rays in the Univers...