560 citations · 1.9k across the 31 of their papers we have counts for
31 papers
The effects of drift and winds on the propagation of Galactic cosmic rays
A. AL-Zetoun, A. Achterberg
We study the effects of drift motions and the advection by a Galactic wind on the propagation of cosmic rays in the Galaxy. We employ a simplified magnetic field model, based on (a…
The contribution of nearby supernova remnants on the cosmic ray flux at Earth
A. AL-Zetoun, A. Achterberg
We consider anisotropic diffusion of Galactic cosmic rays in the Galactic magnetic field, using the Jansson-Farrar model for the field. In this paper we investigate the influence o…
Implications of the Fermi-LAT Pass 8 Galactic Center Excess on Supersymmetric Dark Matter
Abraham Achterberg, Melissa van Beekveld, Sascha Caron +3
The Fermi Collaboration has recently updated their analysis of gamma rays from the center of the Galaxy. They reconfirm the presence of an unexplained emission feature which is mos…
Cosmic-ray energy spectrum and composition up to the ankle - the case for a second Galactic component
S. Thoudam, J. P. Rachen, A. van Vliet +4
We have carried out a detailed study to understand the observed energy spectrum and composition of cosmic rays with energies up to ~10^18 eV. Our study shows that a single Galactic…
Filaments in the southern giant lobe of Centaurus A: constraints on nature and origin from modelling and GMRT observations
Sarka Wykes, Huib T. Intema, Martin J. Hardcastle +8
We present results from imaging of the radio filaments in the southern giant lobe of Centaurus A using data from GMRT observations at 325 and 235 MHz, and outcomes from filament mo…
Relativistic AGN jets II. Jet properties and mixing effects for episodic jet activity
Sander Walg, Abraham Achterberg, Sera Markoff +2
Various radio galaxies show signs of having gone through episodic jet outbursts in the past. An example is the class of double-double radio galaxies (DDRGs). However, to follow the…