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Related papers: Very Light Magnetized Jets on Large Scales - I. Ev…

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High-mass microquasars may produce jets that will strongly interact with surrounding stellar winds on binary system spatial scales. We study the dynamics of the collision between a mildly relativistic hydrodynamical jet of supersonic nature…

High Energy Astrophysical Phenomena · Physics 2015-05-18 M. Perucho , V. Bosch-Ramon , D. Khangulyan

By modelling the expansion of a cloud of electrons and positrons with the temperature 400 keV that propagates at the mean speed 0.9c ($c:$ speed of light) through an initially unmagnetized electron-proton plasma with a particle-in-cell…

High Energy Astrophysical Phenomena · Physics 2018-11-12 M E Dieckmann , G Sarri , D Folini , R Walder , M Borghesi

Observations of both gamma-ray bursts (GRBs) and active galactic nuclei (AGNs) point to the idea that some relativistic jets are suffocated by their environment before we observe them. In these "choked" jets, all the jet's kinetic energy is…

High Energy Astrophysical Phenomena · Physics 2019-09-04 Christopher M. Irwin , Ehud Nakar , Tsvi Piran

A numerical study of the Kelvin-Helmholtz instability in compressible magnetohydrodynamics is presented. The three-dimensional simulations consider shear flow in a cylindrical jet configuration, embedded in a uniform magnetic field directed…

Astrophysics · Physics 2009-10-31 R. Keppens , G. Toth

Synchrotron radio emission from non-relativistic jets powered by massive protostars has been reported, indicating the presence of relativistic electrons and magnetic fields of strength ~0.3-5 mG. We study diffusive shock acceleration and…

High Energy Astrophysical Phenomena · Physics 2021-03-31 Anabella Araudo , Marco Padovani , Alexandre Marcowith

Using high resolution adaptive mesh refinement simulations in 3D, we investigate the formation of relativistic jets from rotating magnetospheres. Here, we focus on the development of non-axisymmetric modes due to internal and external…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Oliver Porth

We perform two-dimensional numerical simulations on the core-collapse of a massive star with strong magnetic fields and differential rotations using a numerical code ZEUS-2D. Changing field configurations and laws of differential rotation…

Astrophysics · Physics 2009-11-11 Hidetomo Sawai , Kei Kotake , Shoichi Yamada

Using our new 3-D relativistic electromagnetic particle (REMP) code parallelized with MPI, we have investigated long-term particle acceleration associated with an relativistic electron-positron jet propagating in an unmagnetized ambient…

High Energy Astrophysical Phenomena · Physics 2009-06-25 K. -I. Nishikawa , M. Medvedev , B. Zhang , P. Hardee , J. Niemiec , A. Nordlund , J. Frederiksen , Y. Mizuno , H. Sol , G. J. Fishman

We calculate the optically thin synchrotron emission of fast electrons and positrons in a spiral stationary magnetic field and a radial electric field of a rotating relativistic strongly magnetized force-free jet consisting of…

Astrophysics · Physics 2009-11-07 V. I. Pariev , Ya. N. Istomin , A. R. Beresnyak

The dynamical effects of magnetic fields in models of radiative, Herbig-Haro (HH) jets have been studied in a number of papers. For example, magnetized, radiative jets from variable sources have been studied with axisymmetric and 3D…

Astrophysics · Physics 2009-11-13 Fabio De Colle , Alejandro Raga , Alejandro Esquivel

The enormous sizes and variability of emission of radio-loud AGNs arise from the relativistic flows of plasma along two oppositely directed jets. We use the Athena hydrodynamics code to simulate an extensive suite of 54 propagating…

Astrophysics of Galaxies · Physics 2018-12-19 Yutong Li , Paul J. Wiita , Terance Schuh , Geena Elghossain , Shaoming Hu

We describe a new numerical 3D relativistic hydrodynamical code, the results of validation tests, and a comparison with earlier, 2D studies. The 3D code has been used to study the deflection and precession of relativistic flows. We find…

Astrophysics · Physics 2009-11-07 Philip A. Hughes , Mark A. Miller , G. Comer Duncan

We study the linear stability of a planar interface separating two fluids in relative motion, focusing on conditions appropriate for the boundaries of relativistic jets. The jet is magnetically dominated, whereas the ambient wind is…

High Energy Astrophysical Phenomena · Physics 2023-07-10 Anthony Chow , Jordy Davelaar , Michael Rowan , Lorenzo Sironi

We study the influence of the matter content of extragalactic jets on their morphology, dynamics and emission properties. For this purpose we consider jets of extremely different compositions including pure leptonic and baryonic plasmas.…

Astrophysics · Physics 2009-11-07 L. Scheck , M. A. Aloy , J. M. Marti , J. L. Gomez , E. Mueller

There is compelling evidence showing that extragalactic jets are a crucial ingredient in the evolution of host galaxies and their environments. Extragalactic jets are well collimated and relativistic, both in terms of thermodynamics and…

Astrophysics of Galaxies · Physics 2019-03-01 Manel Perucho

Magnetic fields are widely observed in the Universe in virtually all astrophysical objects, from individual stars to entire galaxies, even in the intergalactic medium, but their specific generation has long been debated. Due to the…

Astrophysics of Galaxies · Physics 2017-11-08 Michael Rieder , Romain Teyssier

Using simulated data-driven three-dimensional resistive MHD simulations of the solar atmosphere, we show that magnetic reconnection can be responsible of the formation of jets with characteristic of Type II spicules. For this, we…

Solar and Stellar Astrophysics · Physics 2018-04-06 J. J. González-Avilés , F. S. Guzmán , V. Fedun , G. Verth , S. Shelyag , S. Regnier

Jets from active galaxies propagate from the central black hole out to the radio lobes on scales of hundreds of kiloparsecs. The jets may encounter giant stars with strong stellar winds and produce observable signatures. For strong winds…

High Energy Astrophysical Phenomena · Physics 2013-01-31 Martin Huarte-Espinosa , Eric G. Blackman , Alex Hubbard , Adam Frank

To model the interaction between the solar wind and the interstellar wind, magnetic fields must be included. Recently Opher et al. 2003 found that, by including the solar magnetic field in a 3D high resolution simulation using the…