202 citations · 759 across the 16 of their papers we have counts for
6 papers · 1 filter
Diffusive shock acceleration in relativistic, oblique shocks
Allard Jan van Marle, Artem Bohdan, Anabella Araudo +2
Cosmic rays are charged particles that are accelerated to relativistic speeds by astrophysical shocks. Numerical models have been successful in confirming the acceleration process…
Using PIC and PIC-MHD to investigate cosmic ray acceleration in mildly relativistic shocks
Artem Bohdan, Anabella Araudo, Allard Jan van Marle +2
Astrophysical shocks create cosmic rays by accelerating charged particles to relativistic speeds. However, the relative contribution of various types of shocks to the cosmic ray sp…
Towards an understanding of long gamma-ray burst environments through circumstellar medium population synthesis predictions
A. A. Chrimes, B. P. Gompertz, D. A. Kann +8
The temporal and spectral evolution of gamma-ray burst (GRB) afterglows can be used to infer the density and density profile of the medium through which the shock is propagating. I…
Numerical models of collisions between core-collapse supernovae and circumstellar shells
Allard Jan van Marle, Nathan Smith, Stanley P. Owocki +1
Recent observations of luminous Type IIn supernovae (SNe) provide compelling evidence that massive circumstellar shells surround their progenitors. In this paper we investigate how…
The rest-frame ultraviolet spectra of GRBs from massive rapidly-rotating stellar progenitors
Peter B. Robinson, Rosalba Perna, Davide Lazzati +1
The properties of a massive star prior to its final explosion are imprinted in the circumstellar medium (CSM) created by its wind and termination shock. We perform a detailed, comp…
The hydrodynamics of the supernova remnant Cas A: The influence of the progenitor evolution on the velocity structure and clumping
B. van Veelen, N. Langer, J. Vink +2
There are large differences in the proposed progenitor models for the Cas A SNR. One of these differences is the presence or absence of a Wolf-Rayet (WR) phase of the progenitor st…