Zobrazeno 1 - 10
of 18 961
pro vyhledávání: '"acceleration of particles"'
The Landau-Lifshitz decomposition of spacetime, or (1+3)-split, determines the three-dimensional velocity and acceleration as measured by static observers. We use these quantities to analyze the geodesic particles in Schwarzschild and Kerr spacetimes
Externí odkaz:
http://arxiv.org/abs/1902.05450
Publikováno v:
Astroparticle Physics, 107 (2019) 35-37
By direct computations, we show that "repulsion" in the Schwarzschild field can not accelerate an outgoing particle, and thus represents pure coordinate effect. In other words, the repulsion can not be detected neither by local nor by distant observe
Externí odkaz:
http://arxiv.org/abs/1812.06832
Autor:
McGruder III, Charles H.
Publikováno v:
Astroparticle Physics, Volume 86, p. 18-20, 2017
Gravitational repulsion is an inherent aspect of the Schwarzschild solution of the Einstein-Hilbert field equations of general relativity. We show that this circumstance means that it is possible to gravitationally accelerate particles to the highest
Externí odkaz:
http://arxiv.org/abs/1802.08546
Publikováno v:
2017, Astropart. Phys., 94, 42
Comments are due on a recent paper by McGruder III (2017) in which the author deals with the concept of gravitational repulsion in the context of the Schwarzschild-Droste solution. Repulsion (deceleration) for ingoing particles into a black hole is a
Externí odkaz:
http://arxiv.org/abs/1708.00799
Autor:
G.N. Kichigin
Publikováno v:
Solar-Terrestrial Physics, Vol 7, Iss 2, Pp 22-27 (2021)
The paper addresses the problem of acceleration of particles in a constant, uniform magnetic field of magnitude B and a uniform electric field perpendicular to it, which slowly increases with time. Assuming that the electric field grows linearly up t
Externí odkaz:
https://doaj.org/article/b64e60b40cbd4097a4f972e041fbc420
Publikováno v:
Physics of Plasmas 23, 114501 (2016)
Charged particles in a magnetosphere are spontaneously attracted to a planet while increasing their kinetic energy via inward diffusion process. A constraint on particles' micro-scale adiabatic invariants restricts the class of motions available to t
Externí odkaz:
http://arxiv.org/abs/1609.02373
Autor:
Osmanov, Z.
In this paper we study efficiency of particle acceleration in the magnetospheres of stellar mass black holes. For this purpose we consider the linearized set of the Euler equation, continuity equation and Poisson equation respectively. After introduc
Externí odkaz:
http://arxiv.org/abs/1608.04889
Autor:
Petruk, Oleh, Kopytko, Bohdan
Three approaches are considered to solve the equation which describes the time-dependent diffusive shock acceleration of test particles at the non-relativistic shocks. At first, the solution of Drury (1983) for the particle distribution function at t
Externí odkaz:
http://arxiv.org/abs/1607.07206
Akademický článek
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Autor:
McGruder, Charles H., III
Publikováno v:
In Astroparticle Physics January 2017 86:18-20