Results 61 to 70 of about 629,027 (290)

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.
Aloy   +35 more
core   +3 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

Time reclustering for jet quenching studies

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The physics program of ultra-relativistic heavy-ion collisions at the Large Hadron Collider (LHC) and Relativistic Heavy-Ion Collider (RHIC) has brought a unique insight into the hot and dense QCD matter created in such collisions, the Quark-Gluon Plasma
Liliana Apolinário   +2 more
doaj   +1 more source

Stability of three-dimensional relativistic jets: implications for jet collimation [PDF]

open access: yes, 2010
The stable propagation of jets in FRII sources is remarkable if one takes into account that large-scale jets are subjected to potentially highly disruptive three-dimensional (3D) Kelvin-Helmholtz instabilities.
Cela, J. M.   +5 more
core   +2 more sources

Applying Relativistic Reconnection to Blazar Jets

open access: yesGalaxies, 2016
Rapid and luminous flares of non-thermal radiation observed in blazars require an efficient mechanism of energy dissipation and particle acceleration in relativistic active galactic nuclei (AGN) jets.
Krzysztof Nalewajko
doaj   +1 more source

General Relativistic MHD Jets [PDF]

open access: yes, 2009
Magnetic fields connecting the immediate environs of rotating black holes to large distances appear to be the most promising mechanism for launching relativistic jets, an idea first developed by Blandford and Znajek in the mid-1970s. To enable an understanding of this process, we provide a brief introduction to dynamics and electromagnetism in the ...
Krolik, J. H., Hawley, J.
openaire   +2 more sources

A Theory of Leadership Meta‐Talk and the Talking‐Doing Gap

open access: yesJournal of Management Studies, EarlyView.
Abstract We identify managers' meta‐level talk about the positive purpose, meaning, and significance of their actions as an overlooked type of leadership behaviour and call it leadership meta‐talk. We outline why leadership meta‐talk is not necessarily truthful or deceptive, but selective and loosely coupled with leadership practice.
Thomas Fischer, Mats Alvesson
wiley   +1 more source

A Novel Jet Model: Magnetically Collimated, Radiation-Pressure Driven Jet

open access: yes, 2010
Relativistic jets from compact objects are ubiquitous phenomena in the Unvierse, but their driving mechanism has been an enigmatic issue over many decades.
Mineshige, S., Ohsuga, K., Takeuchi, S.
core   +1 more source

Active Galactic Nuclei as Potential Sources of Ultra-High Energy Cosmic Rays

open access: yesUniverse, 2022
Active Galactic Nuclei (AGNs) and their relativistic jets belong to the most promising class of ultra-high-energy cosmic ray (UHECR) accelerators. This compact review summarises basic experimental findings by recent instruments, and discusses possible ...
Frank M. Rieger
doaj   +1 more source

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