Results 11 to 20 of about 48,168 (266)

Three-dimensional structure and stability of discontinuities between unmagnetized pair plasma and magnetized electron-proton plasma

open access: yesNew Journal of Physics, 2023
We study with a 3D particle-in-cell simulation discontinuities between an electron–positron pair plasma and magnetized electrons and protons. A pair plasma is injected at one simulation boundary with a speed 0.6 c along its normal.
M E Dieckmann   +5 more
doaj   +1 more source

Simulations of Neutrino and Gamma-Ray Production from Relativistic Black-Hole Microquasar Jets

open access: yesGalaxies, 2021
Recently, microquasar jets have aroused the interest of many researchers focusing on the astrophysical plasma outflows and various jet ejections. In this work, we concentrate on the investigation of electromagnetic radiation and particle emissions from ...
Theodora Papavasileiou   +2 more
doaj   +1 more source

The Morphology and Dynamics of Relativistic Jets with Relativistic Equation of State

open access: yesThe Astrophysical Journal, 2023
We study the effect of plasma composition on the dynamics and morphology of relativistic astrophysical jets. Our work is based on a relativistic total variation diminishing simulation code.
Raj Kishor Joshi, Indranil Chattopadhyay
doaj   +1 more source

Modeling Particle Transport in Astrophysical Outflows and Simulations of Associated Emissions from Hadronic Microquasar Jets

open access: yesAdvances in High Energy Physics, 2022
In this work, after improving the formulation of the model on particle transport within astrophysical plasma outflows and constructing the appropriate algorithms, we test the reliability and effectiveness of our method through numerical simulations on ...
D. A. Papadopoulos   +2 more
doaj   +1 more source

Three-Dimensional MHD Simulation of Caltech Plasma Jet Experiment: First Results [PDF]

open access: yes, 2014
Magnetic fields are believed to play an essential role in astrophysical jets with observations suggesting the presence of helical magnetic fields. Here, we present three-dimensional (3D) ideal MHD simulationsof the Caltech plasma jet experiment using a ...
Bellan, Paul M.   +3 more
core   +3 more sources

Knots in Relativistic Transverse Stratified Jets

open access: yesGalaxies, 2017
We investigate the plasmoid knot formation in stratified relativistic jet by means of relativistic magneto-hydrodynamics simulations. Indeed, astrophysical jets in active galactic nuclei (AGN) seem to be transversely stratified, with a fast inner jet and
Zakaria Meliani, Olivier Hervet
doaj   +1 more source

MODELING JET INTERACTIONS WITH THE AMBIENT MEDIUM

open access: yesActa Polytechnica, 2013
Recent high-resolution (see, e.g., [13]) observations of astrophysical jets reveal complex structures apparently caused by ejecta from the central engine as the ejecta interact with the surrounding interstellar material.
J. H. Beall   +3 more
doaj   +1 more source

Shocks and Photoionization of the Inner 650 au Jet of the Interacting Binary Star R Aquarii from Multiwavelength Hubble Space Telescope Observations

open access: yesThe Astrophysical Journal, 2023
Astrophysical jets are present in a range of environments, including young stellar objects, X-ray binaries, and active galactic nuclei, but their formation is still not fully understood.
Caroline D. Huang   +5 more
doaj   +1 more source

Radiation from matter entrainment in astrophysical jets: the AGN case [PDF]

open access: yes, 2010
Jets are found in a variety of astrophysical sources, from young stellar objects to active galactic nuclei. In all the cases the jet propagates with a supersonic velocity through the external medium, which can be inhomogeneous, and inhomogeneities could ...
A. T. Araudo   +4 more
core   +3 more sources

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