Search Results - "O’C Drury, L."
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Escaping the accelerator: how, when and in what numbers do cosmic rays get out of supernova remnants?
Published in Monthly notices of the Royal Astronomical Society (01-08-2011)“…The escape of charged particles accelerated by diffusive shock acceleration from supernova remnants is shown to be a more complex process than normally…”
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Cosmic ray pressure driven magnetic field amplification: dimensional, radiative and field orientation effects
Published in Monthly notices of the Royal Astronomical Society (11-10-2014)“…Observations of non-thermal emission from several supernova remnants suggest that magnetic fields close to the blastwave are much stronger than would be…”
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Probing Nearby Cosmic-ray Accelerators and Interstellar Medium Turbulence with MILAGRO Hot Spots
Published in The Astrophysical journal (20-09-2010)“…Both the acceleration of cosmic rays (CRs) in supernova remnant shocks and their subsequent propagation through the random magnetic field of the Galaxy are…”
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Diffusive Shock Acceleration and Magnetic Field Amplification
Published in Space science reviews (01-11-2012)“…Diffusive shock acceleration is the theory of particle acceleration through multiple shock crossings. In order for this process to proceed at a rate that can…”
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Search for γ-Ray Line Signals from Dark Matter Annihilations in the Inner Galactic Halo from 10 Years of Observations with H.E.S.S
Published in Physical review letters (18-05-2018)“…Spectral lines are among the most powerful signatures for dark matter (DM) annihilation searches in very-high-energy γ rays. The central region of the…”
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First-order Fermi acceleration driven by magnetic reconnection
Published in Monthly notices of the Royal Astronomical Society (01-05-2012)“…A box model is used to study first-order Fermi acceleration driven by magnetic reconnection. It is shown, at least in this simple model, that the spectral…”
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Turbulent magnetic field amplification driven by cosmic ray pressure gradients
Published in Monthly notices of the Royal Astronomical Society (11-12-2012)“…Abstract Observations of non-thermal emission from several supernova remnants suggest that magnetic fields close to the blast wave are much stronger than would…”
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Multidimensional Simulations of Magnetic Field Amplification and Electron Acceleration to Near-Energy Equipartition With Ions by a Mildly Relativistic Quasi-Parallel Plasma Collision
Published in IEEE transactions on plasma science (01-10-2010)“…The energetic electromagnetic eruptions observed during the prompt phase of gamma-ray bursts are attributed to synchrotron emissions. The internal shocks…”
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Constraints on an annihilation signal from a core of constant dark matter density around the milky way center with H.E.S.S
Published in Physical review letters (27-02-2015)“…An annihilation signal of dark matter is searched for from the central region of the Milky Way. Data acquired in dedicated on-off observations of the Galactic…”
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Relativistic shocks and particle acceleration
Published in Monthly notices of the Royal Astronomical Society (01-12-1988)“…In this paper, we investigate the fluid dynamics of relativistic shock waves, and use the results to calculate the spectral index of particles accelerated by…”
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PIC simulation of a thermal anisotropy-driven Weibel instability in a circular rarefaction wave
Published in New journal of physics (02-02-2012)“…The expansion of an initially unmagnetized planar rarefaction wave has recently been shown to trigger a thermal anisotropy-driven Weibel instability (TAWI),…”
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On the ultrarelativistic two-stream instability, electrostatic turbulence and Brownian motion
Published in New journal of physics (10-03-2006)“…Experimental evidence indicates that bulk plasma flow at ultrarelativistic speeds is common in astrophysical settings, e.g. the collimated jets of active…”
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HESS observations of the galactic center region and their possible dark matter interpretation
Published in Physical review letters (01-12-2006)“…The detection of gamma rays from the source HESS J1745-290 in the Galactic Center (GC) region with the High Energy Spectroscopic System (HESS) array of…”
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Acceleration of petaelectronvolt protons in the Galactic Centre
Published in Nature (London) (24-03-2016)“…Deep γ-ray observations of the Galactic Centre with arcminute angular resolution show traces of petaelectronvolt protons within the central ten parsecs of our…”
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Search for Dark Matter Annihilations towards the Inner Galactic Halo from 10 Years of Observations with H.E.S.S
Published in Physical review letters (09-09-2016)“…The inner region of the Milky Way halo harbors a large amount of dark matter (DM). Given its proximity, it is one of the most promising targets to look for DM…”
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Resolving acceleration to very high energies along the jet of Centaurus A
Published in Nature (London) (18-06-2020)“…The nearby radio galaxy Centaurus A belongs to a class of active galaxies that are luminous at radio wavelengths. Most show collimated relativistic outflows…”
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Search for photon-linelike signatures from dark matter annihilations with H.E.S.S
Published in Physical review letters (2013)“…Gamma-ray line signatures can be expected in the very-high-energy (E(γ)>100 GeV) domain due to self-annihilation or decay of dark matter (DM) particles in…”
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Energy spectrum of cosmic-ray electrons at TeV energies
Published in Physical review letters (31-12-2008)“…The very large collection area of ground-based gamma-ray telescopes gives them a substantial advantage over balloon or satellite based instruments in the…”
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Search for a dark matter annihilation signal from the galactic center halo with H.E.S.S
Published in Physical review letters (2011)“…A search for a very-high-energy (VHE; ≥100 GeV) γ-ray signal from self-annihilating particle dark matter (DM) is performed towards a region of projected…”
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