Non-thermal Processes in Black-Hole-Jet Magnetospheres

@article{Rieger2011NonthermalPI,
  title={Non-thermal Processes in Black-Hole-Jet Magnetospheres},
  author={Frank M. Rieger},
  journal={International Journal of Modern Physics D},
  year={2011},
  volume={20},
  pages={1547-1596}
}
  • F. Rieger
  • Published 11 July 2011
  • Physics
  • International Journal of Modern Physics D
The environs of supermassive black holes are among the universe's most extreme phenomena. Understanding the physical processes occurring in the vicinity of black holes may provide the key to answer a number of fundamental astrophysical questions including the detectability of strong gravity effects, the formation and propagation of relativistic jets, the origin of the highest energy gamma-rays and cosmic rays, and the nature and evolution of the central engine in active galactic nuclei (AGN… 
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References

SHOWING 1-10 OF 226 REFERENCES
Acceleration of particles in the vicinity of a massive black hole
Recent results of the gamma-ray Cherenkov astronomy definitely prove the existence of fast variability in the very high energy (V.H.E.) gamma-ray flux of some active galactic nuclei. The BL Lac PKS
TeV Emission from the Galactic Center Black Hole Plerion
The HESS (High Energy Stereoscopic System) collaboration recently reported highly significant detection of TeV γ-rays coincident with Sgr A*. In the context of other Galactic center (GC)
A measurement of the electromagnetic luminosity of a kerr black hole
Some active galactic nuclei, microquasars, and gamma-ray bursts may be powered by the electromagnetic braking of a rapidly rotating black hole. We investigate this possibility via axisymmetric
High-Energy Gamma-Ray Emission from Galactic Kerr-Newman Black Holes. I. The Central Engine
A model of the central engine of the unidentified high-latitude galactic hard γ-ray (EGRET) sources based on black hole electrodynamics is presented. The γ-ray emission is produced in a bipolar
Charge-starved, Relativistic Jets and Blazar Variability
High energy emission from blazars is thought to arise in a relativistic jet launched by a supermassive black hole. The emission site must be far from the hole and the jet relativistic, in order to
Cosmic rays from remnants of quasars
Considerations of the collision losses for protons traversing the 2.7-K blackbody microwave radiation field have led to the conclusion that the highest energy cosmic rays, those observed at ≥1020 eV,
Near-infrared flares from accreting gas around the supermassive black hole at the Galactic Centre
TLDR
High-resolution infrared observations of Sagittarius A* reveal ‘quiescent’ emission and several flares, and traces very energetic electrons or moderately hot gas within the innermost accretion region.
Ultra-high energy cosmic ray production in the polar cap regions of black hole magnetospheres
We develop a model of ultra-high energy cosmic ray (UHECR) production via acceleration in a rotation-induced electric field in vacuum gaps in the magnetospheres of supermassive black holes (BHs). We
HIGH-ENERGY GAMMA RAYS FROM THE MASSIVE BLACK HOLE IN THE GALACTIC CENTER
Accreting black holes (BHs) are believed to be sites of possible particle acceleration with conditions that are also favorable for effective gamma-ray production. However, because of photon-photon
Stochastic Acceleration in the Galactic Center HESS Source
Stochastic acceleration of electrons interacting resonantly with a turbulent magnetic field in a small accretion torus appears to be the likely mechanism responsible for much of Sagittarius A*'s
...
1
2
3
4
5
...