Results 1 to 10 of about 45,937 (210)

Stationary relativistic jets. [PDF]

open access: yesComput Astrophys Cosmol, 2015
AbstractIn this paper we describe a simple numerical approach which allows to study the structure of steady-state axisymmetric relativistic jets using one-dimensional time-dependent simulations. It is based on the fact that for narrow jets with $v_{z}\approx c$ v z
Komissarov SS, Porth O, Lyutikov M.
europepmc   +7 more sources

Magnetized, Relativistic Jets [PDF]

open access: yesProceedings of XII Multifrequency Behaviour of High Energy Cosmic Sources Workshop — PoS(MULTIF2017), 2017
Extragalactic relativistic jets are composed by charged particles and magnetic fields, as inferred from the synchrotron emission that we receive from them.
Fuentes, Antonio   +3 more
core   +3 more sources

Magnetic Dissipation in Relativistic Jets [PDF]

open access: yesGalaxies, 2016
The most promising mechanisms for producing and accelerating relativistic jets, and maintaining collimated structure of relativistic jets involve magnetohydrodynamical (MHD) processes.
Yosuke Mizuno   +7 more
doaj   +4 more sources

Relativistic Jets from Collapsars [PDF]

open access: yesThe Astrophysical Journal, 1999
We have studied the relativistic beamed outflow proposed to occur in the collapsar model of gamma-ray bursts. A jet forms as a consequence of an assumed energy deposition of $\sim 10^{50}- 10^{51}$ erg/s within a $30^{\circ}$ cone around the rotation ...
A. MacFadyen   +8 more
core   +7 more sources

Quasi-periodic oscillations of GHz-band polarization in a black hole [PDF]

open access: yesNature Communications
Relativistic jets from accreting black holes radiate non-thermal emission which is highly variable in different time scales. Previous studies on black holes of different mass scales, including supermassive and stellar-mass black holes, only report flux ...
Wei Wang   +12 more
doaj   +2 more sources

Radiation from relativistic jets [PDF]

open access: yes, 2008
Nonthermal radiation observed from astrophysical systems containing relativistic jets and shocks, e.g., gamma-ray bursts (GRBs), active galactic nuclei (AGNs), and Galactic microquasar systems usually have power-law emission spectra.
Fishman, G. J.   +9 more
core   +4 more sources

Monitoring of multi-frequency polarization of gamma-ray bright AGNs

open access: yesEPJ Web of Conferences, 2013
We started two observing programs with the Korean VLBI Network (KVN) monitoring changes in the flux density and polarization of relativistic jets in gamma-ray bright AGNs simultaneously at 22, 43, 86, 129 GHz.
Lee Sang-Sung   +7 more
doaj   +2 more sources

GRMHD Simulations and Modeling for Jet Formation and Acceleration Region in AGNs

open access: yesUniverse, 2022
Relativistic jets are collimated plasma outflows with relativistic speeds. Astrophysical objects involving relativistic jets are a system comprising a compact object such as a black hole, surrounded by rotating accretion flows, with the relativistic jets
Yosuke Mizuno
doaj   +1 more source

Particle-in-Cell Simulations of Astrophysical Relativistic Jets

open access: yesUniverse, 2021
Astrophysical relativistic jets in active galactic nuclei, gamma-ray bursts, and pulsars is the main key subject of study in the field of high-energy astrophysics, especially regarding the jet interaction with the interstellar or intergalactic ...
Athina Meli, Ken-ichi Nishikawa
doaj   +1 more source

Extragalactic relativistic jets [PDF]

open access: yesAIP Conference Proceedings, 2011
Extragalactic relativistic jets are engines able to carry out to large distances a huge amount of power, not only in the form of radiation, but especially in the form of kinetic energy of matter and fields. As such, they can be thought as one of the most efficient engines of Nature, perhaps even more efficient than accretion.
Gabriele Ghisellini   +3 more
openaire   +2 more sources

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