Results 121 to 130 of about 629,027 (290)
Radiation from accelerated particles in relativistic jets with shocks, shear-flow, and reconnection
EPJ Web of Conferences, 2013 We have investigated particle acceleration and shock structure associated with an unmagnetized relativistic jet propagating into an unmagnetized plasma for electron-positron and electron-ion plasmas.
Nishikawa K.-I. +15 more
doaj +1 more source
Leptonic and Hadronic Radiative Processes in Supermassive-Black-Hole Jets
Galaxies, 2020 Supermassive black holes lying in the center of galaxies can launch relativistic jets of plasma along their polar axis. The physics of black-hole jets is a very active research topic in astrophysics, owing to the fact that many questions remain open on ...
Matteo Cerruti
doaj +1 more source
Liquid Perception and Event and Nursing
Nursing Philosophy, Volume 27, Issue 1, January 2026.ABSTRACT At the start of academic nursing in the United States, nurses philosophized. And they did it grandly. So grandly in fact that this entire period (beginning in the mid 1900s) has been called the era of grand nursing theory. Grand nursing theory attempted to express the conceptual side of nursing but struggled, not least in confusing philosophy ...
Miriam Bender
wiley +1 more source
Active Galactic Nuclei: Jets as the Source of Hadrons and Neutrinos
Acta Polytechnica CTU Proceedings, 2014 Active galactic nuclei are extragalactic sources, and their relativistic hot-plasma jets are believed to be the main candidates of the cosmic-ray origin, above the so-called knee region of the cosmic-ray spectrum.
Athina Meli, Paolo Ciarcelluti
doaj +1 more source
Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.Abstract Low‐altitude measurements of energetic electron fluxes offer insight into the dynamics of the radiation belts and plasma sheet. However, distinguishing between key magnetospheric regions–such as inner belt, slot region, outer belt, and plasma sheet–based on low‐altitude data remains challenging, particularly for missions lacking pitch‐angle ...
Weiqin Sun +7 more
wiley +1 more source
On the extragalactic jet asymmetry and composition, and the production of high energy cosmic rays
, 2012 We probe the role of the directional asymmetry between relativistic outflows to kilo-parsec scale jets in the propagation and acceleration of cosmic rays. Our sample contains powerful AGN hosting dense cluster environments.
Benford +27 more
core +1 more source
Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.Abstract The strong very high frequency (VHF) radiation from compact intra‐cloud discharges (CIDs) is attributed to streamers. An analytical model, taking altitude and applied electric field as input, is developed for effective representation of current for a double‐headed exponentially growing streamer.
Zaid Pervez +2 more
wiley +1 more source
Precursors and Main-bursts of Gamma Ray Bursts in a Hypernova Scenario
, 2005 We investigate a "hypernova" model for gamma-ray bursts (GRBs), i.e., massive C+O star model with relativistic jets. In this model, non-thermal precursors can be produced by the "first" relativistic shell ejected from the star.
Blandford R. D. +5 more
core +1 more source
Radiatively driven relativistic jets with variable adiabatic index equation of state [PDF]
, 2015 We investigate a relativistic fluid jet driven by radiation from a shocked accretion disc around a non-rotating black hole approximated by Paczy\'nski-Wiita potential.
M. Vyas +3 more
semanticscholar +1 more source
Advanced Photonics Research, Volume 6, Issue 12, December 2025.Electron acceleration using multipetawatt femtosecond lasers and subcritical density plasmas achieves a maximum charge of 245 nC, with an injection rate of up to 100 nC per picosecond. The charge variation with plasma density, initially increasing and then decreasing, arises from the competition between the injection of multiple plasma waves and laser ...
Xi‐Chen Hu +9 more
wiley +1 more source