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A. R. Bell
Researcher at Imperial College London
Publications - 18
Citations - 5166
A. R. Bell is an academic researcher from Imperial College London. The author has contributed to research in topics: Cosmic ray & Supernova. The author has an hindex of 13, co-authored 16 publications receiving 4818 citations. Previous affiliations of A. R. Bell include University of Oxford & University of Cambridge.
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Journal ArticleDOI
The acceleration of cosmic rays in shock fronts – I
Journal ArticleDOI
Turbulent amplification of magnetic field and diffusive shock acceleration of cosmic rays
TL;DR: In this paper, it was shown that the magnetic field can be amplified from its seed value by orders of magnitude and the consequences for the maximum attainable cosmic ray energy in supernova remnants are explored.
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Cosmic ray acceleration to very high energy through the non-linear amplification by cosmic rays of the seed magnetic field
A. R. Bell,S. G. Lucek +1 more
TL;DR: In this paper, the magnetic field can be amplified nonlinearly by the cosmic rays to many times the pre-shock value, thus increasing the acceleration rate and facilitating acceleration to energies well above 10 15 eV.
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Non-linear amplification of a magnetic field driven by cosmic ray streaming
S. G. Lucek,A. R. Bell +1 more
TL;DR: One dimensional numerical results of the non-linear interaction between cosmic rays and a magnetic field are presented in this paper, where it is shown that cosmic ray streaming drives large amplitude Alfvenic waves.
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The interaction of cosmic rays and magnetized plasma
TL;DR: A large flux of cosmic rays streaming through a magnetized plasma creates cavities of low plasma density and low magnetic field, and the magnetic field focuses the cosmic ray trajectories into the cavities with the possible formation of filaments or beams of high-energy cosmic rays as discussed by the authors.