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Recurrent chromospheric fan-shaped jets highlight the highly dynamic nature of the solar atmosphere. They have been named as ''light walls'' or ''peacock jets'' in high-resolution observations. In this study, we examined the underlying…

Solar and Stellar Astrophysics · Physics 2025-04-28 Annu Bura , Tanmoy Samanta , Avijeet Prasad , Ronald L. Moore , Alphonse C. Sterling , Vasyl Yurchyshyn , Arun Surya

One of the key open questions in the study of relativistic jets is their interaction with the environment. Here, we study the initial evolution of both electron-proton and electron-positron relativistic jets, focusing on their lateral…

High Energy Astrophysical Phenomena · Physics 2016-03-28 K. I Nishikawa , J. T. Frederiksen , A. Nordlund , Y. Mizuno , P. E. Hardee , J. Niemiec , J. L. Gomez , A. Pe'er , I. Dutan , A. Meli , H. Sol , M. Pohl , D. H. Hartman

We present numerical simulations of cold, axisymmetric, magnetically driven relativistic outflows. The outflows are initially sub-Alfv\'enic and Poynting flux-dominated, with total--to--rest-mass energy flux ratio up to $\mu \sim 620$. To…

Astrophysics · Physics 2009-11-13 Maxim V. Barkov , Serguei S. Komissarov

Aims. Relativistic jets launched from active galactic nuclei accelerate up to highly relativistic velocities within a few parsecs to tens of parsecs. The precise way in which this process takes place is still under study. While magnetic…

High Energy Astrophysical Phenomena · Physics 2023-12-12 L. Ricci , M. Perucho , J. López-Miralles , J. M. Martí , B. Boccardi

We perform the numerical simulations of axisymmetric, relativistic, optically thin jets under the influence of the radiation field of an accretion disk. We show that starting from a very low injection velocity at the base, jets can be…

High Energy Astrophysical Phenomena · Physics 2024-07-02 Raj Kishor Joshi , Indranil Chattopadhyay , Antonios Tsokaros , Priyesh Kumar Tripathi

We observed three recurrent blowout jets in an active regio with Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO). Using Helioseismic Magnetic Imager (HMI) data. We found that the magnetic flux of an emerging…

Solar and Stellar Astrophysics · Physics 2025-04-16 Chang Zhou , Yang Guo , Guoyin Chen , Ye Qiu , M. D. Ding

We compare two scenarios to launch jets -- formation by MHD processes or formation by thermal pressure in the boundary layer (BL) -- with respect to their compatibility with observational data of jets in symbiotic stars, especially in the…

Astrophysics · Physics 2009-11-10 Matthias Stute , Max Camenzind

This work presents the first characterization of the internal structure of overpressured steady superfast magnetosonic relativistic jets in connection with their dominant type of energy. To this aim, relativistic magnetohydrodynamic…

High Energy Astrophysical Phenomena · Physics 2016-11-15 José M. Martí , Manel Perucho , José L. Gómez

In this paper, we present a numerical simulation of an impulsively driven chromospheric jet in the solar atmosphere using the non-ideal magnetohydrodynamic (MHD) equations coupled with frequency- and angle-averaged radiation transport…

Solar and Stellar Astrophysics · Physics 2026-05-26 J. J. González-Avilés

Astrophysical jets are often observed as bent or curved structures. We also know that the different jet sources may be binary in nature, which may lead to a regular, periodic motion of the jet nozzle, an orbital motion or precession. Here,…

High Energy Astrophysical Phenomena · Physics 2022-07-20 Christian Fendt , Melis Yardimci

We propose a new way of generating magnetized supersonic jets using a ring laser to irradiate a flat surface target. Using 2D FLASH code simulations which include the Biermann Battery term, we demonstrate that strong toroidal fields can be…

High Energy Astrophysical Phenomena · Physics 2015-12-14 Wen Fu , Edison P. Liang , Petros Tzeferacos , Donald Q. Lamb

We investigate the formation of an ideal magnetized jet that originates from a disk acting as a boundary by conducting axisymmetric MHD simulations. Our simulations demonstrate that the magnetized jet is consistently launched and reaches a…

High Energy Astrophysical Phenomena · Physics 2024-03-06 Somayeh Sheikhnezami , Mostafa Sepahvand

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

Non-relativistic, magnetically-driven jets are constructed by taking self-consistently into account the feedback on the underlying accretion disc. It is shown that such jets are mostly described by the ejection index $\xi= \mbox{d} \ln \dot…

Astrophysics · Physics 2007-05-23 Jonathan Ferreira

The exact mechanism by which astrophysical jets are formed is still unknown. It is believed that necessary elements are a rotating (Kerr) black hole and a magnetised accreting plasma. We model the accreting plasma as a collection of…

High Energy Astrophysical Phenomena · Physics 2014-04-10 V. S. Semenov , S. A. Dyadechkin , M. F. Heyn

We investigate the evolution of a disk wind into a collimated jet under the influence of magnetic diffusivity, assuming that the turbulent pattern in the disk will also enter the disk corona and the jet. Using the ZEUS-3D code in the…

Astrophysics · Physics 2009-11-07 Christian Fendt , Miljenko Cemeljic

We show that accretion disks with magnetic fields in them ought to make jets provided that their electrical conductivity prevents slippage and there is an ambient pressure in their surroundings. We study equilibria of highly wound magnetic…

Astrophysics · Physics 2009-11-07 D Lynden-Bell

We identify the desired characteristics and parameters of a beta>1 magnetized plasma, possibly with highly tangled, open field lines, that could be a suitable target to be compressed to fusion conditions by a spherically imploding plasma…

Plasma Physics · Physics 2020-04-01 Scott C. Hsu , Samuel J. Langendorf

The origin of jets emitted from black holes is not well understood, however there are two possible energy sources, the accretion disk or the rotating black hole. Magnetohydrodynamic simulations show a well-defined jet that extracts energy…

Astrophysics · Physics 2009-11-10 Vladimir Semenov , Sergey Dyadechkin , Brian Punsly

We show how an appropriate stationary crystalline structure of the magnetic field can induce a partial fragmentation of the accretion disk, generating an axial jet seed composed of hot plasma twisted in a funnel-like structure due to the…

Solar and Stellar Astrophysics · Physics 2015-06-05 Giulio Tirabassi , Giovanni Montani , Nakia Carlevaro