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We study the propagation of sound-like perturbations created by a jet moving with supersonic velocity through the quark-gluon-plasma created in heavy-ion reactions within the model MACE (MAch Cone Evolution). Predictions for heavy-ion…

核理论 · 物理学 2007-10-09 Bjoern Baeuchle , Laszlo Csernai , Horst Stoecker

Black holes drive powerful plasma jets to relativistic velocities. This plasma should be collisionless, and self-consistently supplied by pair creation near the horizon. We present general-relativistic collisionless plasma simulations of…

高能天体物理现象 · 物理学 2019-01-30 Kyle Parfrey , Alexander Philippov , Benoit Cerutti

Previous top-down studies of jet stopping in strongly-coupled QCD-like plasmas with gravity duals have been in the infinite 't Hooft coupling limit lambda -> infinity. They have found that, though a wide range of jet stopping distances are…

高能物理 - 理论 · 物理学 2015-06-04 Peter Arnold , Phillip Szepietowski , Diana Vaman

The longitudinal invariance of jet-induced peaks in two-particle correlation functions from relativistic lead-lead collisions is experimentally explored. The data were collected at a center-of-mass energy per nucleon pair of 5.02 TeV in…

核实验 · 物理学 2026-03-17 CMS Collaboration

The onset and evolution of magnetic fields in laboratory and astrophysical plasmas is determined by several mechanisms, including instabilities, dynamo effects and ultra-high energy particle flows through gas, plasma and interstellar-media.…

等离子体物理 · 物理学 2015-05-20 A. Flacco , J. Vieira , A. Lifschitz , F. Sylla , S. Kahaly , M. Veltcheva , L. O. Silva , V. Malka

Jets can become collimated as they propagate through dense environments and understanding such interactions is crucial for linking physical models of the environments to observations. In this work, we use 3D special-relativistic simulations…

高能天体物理现象 · 物理学 2021-10-27 Lorenzo Nativi , Gavin P. Lamb , Stephan Rosswog , Christoffer Lundman , Grzegorz Kowal

Extragalactic plasma jets are some of the few astrophysical environments able to confine ultra-high-energy cosmic rays, but whether they are capable of accelerating these particles is unknown. In this work, we revisit particle acceleration…

高能天体物理现象 · 物理学 2023-08-02 Benoît Cerutti , Gwenael Giacinti

A new kind of dynamo utilizing flowing laboratory plasmas has been identified. Conversion of plasma kinetic energy to magnetic energy is verified numerically by kinematic dynamo simulations for magnetic Reynolds numbers above 210. As…

天体物理学 · 物理学 2009-11-07 Zhehui Wang , Vladimir I. Pariev , Cris W. Barnes , Daniel C. Barnes

Extragalactic jets are formed close to supermassive black-holes in the center of galaxies. Large amounts of gas, dust, and stars cluster in the galaxy nucleus, and interactions between this ambient material and the jet base should be…

高能天体物理现象 · 物理学 2015-06-03 Valenti Bosch-Ramon , Manel Perucho , Maxim V. Barkov

Two charge- and current neutral plasma beams are modelled with a one-dimensional PIC simulation. The beams are uniform and unbounded. The relative speed between both beams is 0.4c. One beam is composed of electrons and protons and one out…

天体物理学 · 物理学 2014-11-18 M E Dieckmann , A Bret

Short gamma-ray bursts originate when relativistic jets emerge from the remnants of binary neutron star mergers. Both the jet and the remnant are believed to be strongly magnetized, and the presence of magnetic fields is known to influence…

高能天体物理现象 · 物理学 2024-11-01 Giancarlo Mattia , Luca Del Zanna , Andrea Pavan , Riccardo Ciolfi

Colliding of two high Mach-number quantum degenerate plasmas is one of the most essential components in the double-cone ignition (DCI) inertial confinement fusion scheme, in which two highly compressed plasma jets from the cone-tips collide…

等离子体物理 · 物理学 2023-08-08 W. B. Zhang , Y. H. Li , D. Wu , J. Zhang

We aim to investigate the spatial location of the source of an active region (AR) jet and its relation with associated nonthermal type~III radio emission. An emission measure (EM) method was used to study the thermodynamic nature of the AR…

太阳与恒星天体物理 · 物理学 2020-10-01 Sargam M. Mulay , Rohit Sharma , Gherardo Valori , Alberto M. Vásquez , Giulio Del Zanna , Helen Mason , Divya Oberoi

Collisionless, turbulent plasmas surround the Earth, from the magnetosphere to the intergalactic medium, and the fluctuations within them affect nearly every field in the space sciences, from space weather forecasts to theories of galaxy…

高能天体物理现象 · 物理学 2026-05-28 Keyan Gootkin , Colby Haggerty , Damiano Caprioli , Zachary Davis

Recently X-ray emission from protostellar jets has been detected with both XMM-Newton and Chandra satellites, but the physical mechanism which can give rise to this emission is still unclear. We performed an extensive exploration of a wide…

天体物理学 · 物理学 2009-11-11 R. Bonito , S. Orlando , G. Peres , F. Favata , R. Rosner

We present an update of our on-going project to characterise the impact of radio jets on the ISM by tracing molecular gas at high spatial resolution using ALMA. The radio active galactic nuclei (AGN) studied show recently born radio jets.…

高能天体物理现象 · 物理学 2021-07-01 Raffaella Morganti , Tom Oosterloo , Clive N. Tadhunter

A solid object impacting on liquid creates a liquid jet due to the collapse of the impact cavity. Using visualization experiments with smoke particles and multiscale simulations we show that in addition a high-speed air-jet is pushed out of…

流体动力学 · 物理学 2010-01-21 Stephan Gekle , Ivo Peters , Jose Manuel Gordillo , Devaraj van der Meer , Detlef Lohse

We study the transport dynamics of momenta deposited from jets in ultrarelativistic heavy-ion collisions. Assuming that the high-energy partons traverse expanding quark-gluon fluids and are subject to lose their energy and momentum, we…

核理论 · 物理学 2014-08-20 Yasuki Tachibana , Tetsufumi Hirano

The merger of two neutron stars (NSs) produces the emission of gravitational waves, the formation of a compact object surrounded by a dense and magnetized environment, and the launching of a collimated and relativistic jet, which will…

高能天体物理现象 · 物理学 2023-01-18 Leonardo Garcia-Garcia , Diego Lopez-Camara , Davide Lazzati

Cosmic rays are deemed to be generated by a process known as ``Fermi acceleration", in which charged particles scatter against magnetic fluctuations in astrophysical plasmas. The process itself is however universal, has both classical and…

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