Results 31 to 40 of about 3,258 (231)

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

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

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

open access: yesSystems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

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

Inverse Compton Emission and Cooling of Relativistic Particles Accelerated at Shear Boundary Layers in Relativistic Jets

open access: yesThe Astrophysical Journal
Both observational evidence and theoretical considerations from magnetohydrodynamic simulations of jets suggest that the relativistic jets of active galactic nuclei (AGN) are radially stratified, with a fast inner spine surrounded by a slower-moving ...
Tej Chand, Markus Böttcher
doaj   +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

The Highest Redshift Relativistic Jets

open access: yes, 2007
5 pages, 2 figures, to appear in Extragalactic Jets: Theory and Observation from Radio to Gamma Ray, Eds. T.A. Rector and D.S.
Cheung, C.C.   +7 more
openaire   +3 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

Synchrotron Radiation Maps from Relativistic MHD Jet Simulations

open access: yesGalaxies, 2017
Relativistic jets from active galactic nuclei (AGN) often display a non-uniform structure and are, under certain conditions, susceptible to a number of instabilities.
Dimitrios Millas   +2 more
doaj   +1 more source

Stars Bisected by Relativistic Blades

open access: yesThe Astrophysical Journal Letters, 2023
We consider the dynamics of an equatorial explosion powered by a millisecond magnetar formed from the core collapse of a massive star. We study whether these outflows—generated by a priori magneto-centrifugally driven, relativistic magnetar winds—might ...
Marcus DuPont, Andrew MacFadyen
doaj   +1 more source

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