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Effect of a Weak Electromagnetic Field on Particle Acceleration by a Rotating Black Hole
Weak Electromagnetic Field Particle Acceleration Rotating Black Hole
2012/2/23
We study high energy charged particle collisions near the horizon in an electromagnetic field around a rotating black hole and reveal the condition of the fine-tuning to obtain arbitrarily large cente...
Energy Extraction and Particle Acceleration Around Rotating Black Hole in Horava-Lifshitz Gravity
Energy Extraction Particle Acceleration Around Rotating Horava-Lifshitz Gravity
2011/10/17
Penrose process on rotational energy extraction of the black hole (BH) in the original non-projectable Ho\v{r}ava-Lifshitz gravity is studied. The strong dependence of the extracted energy from the sp...
Particle Acceleration by Magnetic Reconnection in AGNs and in the IGM
Particle Acceleration Magnetic Reconnection AGNs IGM
2011/10/9
There is no single mechanism by which fast particles are accelerated in astrophysical environments, and it is now recognized that the data require a rich variety of different mechanisms operating unde...
Particle Acceleration on Megaparsec Scales in a Merging Galaxy Cluster
Particle Acceleration Megaparsec Scales Merging Galaxy Cluster
2011/1/10
Galaxy clusters form through a sequence of mergers of smaller galaxy clusters and groups. Models of diffusive shock acceleration (DSA) suggest that in shocks that occur during cluster mergers, particl...
Cosmic-ray current driven turbulence in shocks with efficient particle acceleration: the oblique, long-wavelength mode instability
High Energy Astrophysical Phenomena (astro-ph.HE) Plasma Physics (physics.plasm-ph)
2010/12/23
In order for diffusive shock acceleration (DSA) to accelerate particles to high energies, the energetic particles must be able to interact with magnetic turbulence over a broad wavelength range.
Effect of Particle Acceleration Process on the Flare Characteristics of Blazars
kinetic equation approach X-ray region
2009/5/19
Following the kinetic equation approach, we study the flare
processes in blazars in the optical-to-X-ray region, considering energy
dependent acceleration time-scale of electrons and synchrotron and...