Results 31 to 40 of about 5,357 (210)

Particles in Relativistic MHD Jets. I. Role of Jet Dynamics in Particle Acceleration

open access: yesThe Astrophysical Journal, 2023
Relativistic jets from (supermassive) black holes are typically observed in nonthermal emission, caused by highly relativistic electrons. Here, we study the interrelation between three-dimensional (special) relativistic magnetohydrodynamics, and particle
Ravi Pratap Dubey   +2 more
doaj   +1 more source

3D structures on relativistic jets [PDF]

open access: yesNew Astronomy Reviews, 2002
The properties of wave-like helically twisted normal mode structures on steady relativistic jets are summarized. Wave speeds are a function of the wavelength and less than the jet speed. However, normal mode interference can lead to both stationary and superluminal phase effects.
openaire   +2 more sources

The baryon loading effect on relativistic astrophysical jet transport in the interstellar medium

open access: yesNew Journal of Physics, 2018
The composition of the astrophysical relativistic jets remains uncertain. By kinetic particle-in-cell simulations, we show that the baryon component in the jet, or the so-called baryon loading effect (BLE), heavily affects relativistic jets transport ...
W P Yao   +8 more
doaj   +1 more source

Letter to Nature: An ultra-relativistic outflow from a neutron star accreting gas from a companion.

open access: yes, 2004
Collimated relativistic outflows—also known as jets—are amongst the most energetic phenomena in the Universe. They are associated with supermassive black holes in distant active galactic nuclei1, accreting stellar-mass black holes and neutron stars in ...
Johnston, H.   +27 more
core   +1 more source

Polarized Emission from Gamma-Ray Burst Jets

open access: yesGalaxies, 2017
I review how polarization signals have been discussed in the research field of Gamma-Ray Bursts (GRBs). I mainly discuss two subjects in which polarimetry enables us to study the nature of relativistic jets.
Shiho Kobayashi
doaj   +1 more source

Nonlinear stability of relativistic sheared planar jets [PDF]

open access: yes, 2005
The linear and non-linear stability of sheared, relativistic planar jets is studied by means of linear stability analysis and numerical hydrodynamical simulations.
Perucho, Manuel   +8 more
core   +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

A Panchromatic View of Relativistic Jets in Narrow-Line Seyfert 1 Galaxies

open access: yesGalaxies, 2016
The discovery by the Large Area Telescope on board Fermi of variable γ-ray emission from radio-loud narrow-line Seyfert 1 (NLSy1) galaxies revealed the presence of a possible third class of Active Galactic Nuclei (AGN) with relativistic jets in addition ...
Filippo D’Ammando   +5 more
doaj   +1 more source

Countering FIMI by Digital Authoritarianisms: Audience Architecture and Reverse Language Engineering

open access: yesGlobal Policy, EarlyView.
ABSTRACT Foreign information manipulation and interference (FIMI) campaigns on social media are currently both more accessible and more impactful than the North Atlantic Treaty Organization's (NATO) or European Union's (EU), offering their opponents superiority and efficiency on those platforms.
Michelangelo Conoscenti
wiley   +1 more source

Numerical Studies of Relativistic Jets

open access: yes, 2010
Astronomy
Narayan, Ramesh   +2 more
openaire   +3 more sources

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