Results 91 to 100 of about 45,937 (210)
Jet stability, dynamics and energy transport
, 2011 Relativistic jets carry energy and particles from compact to very large scales compared with their initial radius. This is possible due to their remarkable collimation despite their intrinsic unstable nature.
Bodo G. +5 more
core +1 more source
Calculating Quasi‐Linear Diffusion Rates Using Different Methods to Specify the Wave Spectrum
Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.Abstract Quasi‐linear diffusion theory is widely used in radiation belt modeling to describe resonant interactions between charged particles and electromagnetic waves. The diffusion rates depend on the wave spectrum and properties of the background plasma.
J. D. Sadler +5 more
wiley +1 more source
Quasiperiodic Polarized Emissions from Kink Structure in Magnetized Relativistic Jets
The Astrophysical JournalRecent polarimetric observations of blazars indicate the development of current-driven (CD) kink instability after passing the recollimation shocks in the relativistic jets and association with quasiperiodic oscillations (QPOs).
Xu-Fan Hu +4 more
doaj +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
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
How Well Can Solar Wind Parameters Predict Outer Radiation Belt Electron Flux?
Space Weather, Volume 24, Issue 4, April 2026.Abstract The electron flux in the outer radiation belt is primarily governed by interactions between the solar wind and magnetosphere. While geomagnetic indices are widely used for modeling and forecasting, their real‐time availability is limited. In contrast, solar wind parameters can be continuously monitored by a single satellite at the L1 ${L}_{1}$
Yutong Li, Mengli Tan, Xin Tao
wiley +1 more source
, 2008 Nonthermal radiation observed from astrophysical systems containing relativistic jets and shocks, e.g., active galactic nuclei (AGNs), gamma-ray bursts (GRBs), and Galactic microquasar systems usually have power-law emission spectra.
G. J. FISHMAN +5 more
core +1 more source
The Astrophysical JournalSpinning supermassive black holes (BHs) in active galactic nuclei magnetically launch relativistic collimated outflows, or jets. Without angular momentum supply, such jets are thought to perish within 3 orders of magnitude in distance from the BH, well ...
Aretaios Lalakos +6 more
doaj +1 more source
Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields
Galaxies, 2016 In the study of relativistic jets one of the key open questions is their interaction with the environment on the microscopic level. Here, we study the initial evolution of both electron–proton ( e − – p + ) and electron–positron ( e ± )
Ken-Ichi Nishikawa +13 more
doaj +1 more source
Signatures of Relativistic Helical Motion in the Rotation Measures of AGN Jets
, 2009 Polarization has proved an invaluable tool for probing magnetic fields in relativistic jets. Maps of the intrinsic polarization vectors have provided the best evidence to date for uniform, toroidally dominated magnetic fields within jets.
Abraham Loeb +21 more
core +1 more source