Results 41 to 50 of about 5,357 (210)
Time reclustering for jet quenching studies
European 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
A Theory of Leadership Meta‐Talk and the Talking‐Doing Gap
Journal 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
The Astrophysical JournalBoth 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
Powers That Be: An Adventure in Metaphysics
Philosophical Investigations, EarlyView.ABSTRACT This paper is an investigation into the increasingly popular trend amongst philosophers on the metaphysics of powers, exemplified by the statement: ‘To be real is to possess a power to affect (or to be affected by) other things’. First, I briefly trace the history of this idea (from the Eleatic dialectic of ancient times to present day quantum
David Rozema
wiley +1 more source
Synchrotron Radiation Maps from Relativistic MHD Jet Simulations
Galaxies, 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
Active Galactic Nuclei as Potential Sources of Ultra-High Energy Cosmic Rays
Universe, 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
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract Using Van Allen Probes data (2013–2015), we report that highly oblique chorus waves frequently occur in low‐density regions where fpe/fce≈3 ${f}_{\text{pe}}/{f}_{\text{ce}}\approx 3$. These waves exhibit an electric‐to‐magnetic energy ratio PE/c2PB>0.5 $\sqrt{{P}_{\mathrm{E}}/{c}^{2}{P}_{\mathrm{B}}} > 0.5$, much higher than the typical <0.1 ${
Lixian Yang +10 more
wiley +1 more source
Numerical Simulations of Blazar Jets and their Non-thermal Radiation [PDF]
, 2004 In the past years relativistic (magneto)hydrodynamic simulations have been used extensively to study the time-dependent hydrodynamic properties of extra galactic jets.
Mimica, Petar, Mimica, P.
core
Electron jets in toroidal self-generated magnetic fields of nonextensive laser-produced plasma
AIP AdvancesUnder the framework of nonextensive distribution, the modulation instabilities of annular self-generated magnetic fields and electron jets formed during laser-plasma interactions under both relativistic and non-relativistic conditions have been ...
Li Zhang, Zu Yang Zhao, Xiaolan Liu
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Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract We report a rare quiet‐time observation by NOAA‐18 spacecraft flying nearly along the electron isotropy boundary (IBe). Complemented by data from four nearby meridional IBe crossings of other POES spacecraft, this case study provides a novel quantitative information concerning the regular energy dependence of the loss‐cone filling ratio (Jprec/
V. A. Sergeev +5 more
wiley +1 more source