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Geometry of relativistic jets in active galaxies provides important information about mechanisms of launching, collimation and acceleration of plasma flow. We propose a new method to probe a boundary shape of a jet on parsec scales -- in…

High Energy Astrophysical Phenomena · Physics 2021-10-28 E. E. Nokhrina , I. N. Pashchenko , A. M. Kutkin

Recently, particle in cell (PIC) simulations have shown that relativistic turbulence in collisionless plasmas can result in an equilibrium particle distribution function where turbulent heating is balanced by radiative cooling of electrons.…

High Energy Astrophysical Phenomena · Physics 2022-06-08 Zachary Davis , Jesús M. Rueda-Becerril , Dimitrios Giannios

Some of the most important probes of the quark-gluon plasma (QGP) produced in heavy ion collisions come from the analysis of how the shape and energy of jets are modified by passage through QGP. We model an ensemble of back-to-back dijets…

Nuclear Theory · Physics 2018-03-14 Jasmine Brewer , Krishna Rajagopal , Andrey Sadofyev , Wilke van der Schee

Interaction between a central outflow and a surrounding wind is common in astrophysical sources powered by accretion. Understanding how the interaction might help to collimate the inner central outflow is of interest for assessing…

High Energy Astrophysical Phenomena · Physics 2015-06-19 R. Yurchak , A. Ravasio , A. Pelka , S. Pikuz , E. Falize , T. Vinci , M. Koenig , B. Loupias , A. Benuzzi-Mounaix , M. Fatenejad , P. Tzeferacos , D. Q. Lamb , E. G. Blackman

Experiments with interacting high-velocity flows of laser plasma can help answer the fundamental questions in plasma physics and improve the understanding of the mechanisms behind astrophysical phenomena, such as formation of collisionless…

We investigate a potential of measuring properties of a heavy resonance X, exploiting jet substructure techniques. Motivated by heavy higgs boson searches, we focus on the decays of X into a pair of (massive) electroweak gauge bosons. More…

High Energy Physics - Phenomenology · Physics 2017-03-17 Chengcheng Han , Doojin Kim , Minho Kim , Kyoungchul Kong , Sung Hak Lim , Myeonghun Park

We present results from the first self-consistent multi-fluid simulations of chromospheric magnetic reconnection in a weakly ionized reacting plasma. We simulate two dimensional magnetic reconnection in a Harris current sheet with a…

Plasma Physics · Physics 2014-03-04 James E. Leake , Vyacheslav S. Lukin , Mark G. Linton , Eric T. Meier

Degradation of first wall materials due to plasma disturbances severely limit both the lifetime and longevity of fusion reactors. Among the various kinds of disturbances, type I edge localized modes (ELMs) in particular present significant…

A new design of plasma source that merges the main features of capacitive dielectric barrier discharge (DBD) and cold atmospheric plasma jet (CAPJ) is discussed. The DBD system consists of a flexible, porous matrix consisting of silica…

Plasma Physics · Physics 2021-02-08 Carles Corbella , Sabine Portal , Li Lin , Michael Keidar

Jets are observed in young stellar objects, X-ray sources, active galactic nuclei (AGN). The mechanisms of jet formation may be divided in regular, acting continuously for a long time, and explosive ones. Continuous mechanisms are related…

High Energy Astrophysical Phenomena · Physics 2019-05-16 G. S. Bisnovatyi-Kogan

In this chapter, we review some features of particle acceleration in astrophysical jets. We begin by describing four observational results relating to the topic, with particular emphasis on jets in active galactic nuclei and parallels…

High Energy Astrophysical Phenomena · Physics 2020-11-11 James Matthews , Anthony Bell , Katherine Blundell

We propose an experimental scheme to simulate the fractionalization of particle number by using a one-dimensional spin-orbit coupled ultracold fermionic gas. The wanted spin-orbit coupling, a kink-like potential, and a…

Quantum Gases · Physics 2012-12-19 Dan-Wei Zhang , L. -B. Shao , Zheng-Yuan Xue , Hui Yan , Z. D. Wang , Shi-Liang Zhu

Edge plasma turbulence is critical to the performance of magnetic confinement fusion devices. Towards better understanding edge turbulence in both theory and experiment, a custom-built physics-informed deep learning framework constrained by…

Plasma Physics · Physics 2022-05-17 Abhilash Mathews

We investigate motion of a gas-liquid interface in a test tube induced by a large acceleration via impulsive force. We conduct simple experiments in which the tube partially filled with a liquid falls under gravity and impacts a rigid…

Fluid Dynamics · Physics 2015-02-19 Akihito Kiyama , Yoshiyuki Tagawa , Keita Ando , Masaharu Kameda

In this paper we introduce paraglide, a visualization system designed for interactive exploration of parameter spaces of multi-variate simulation models. To get the right parameter configuration, model developers frequently have to go back…

Systems and Control · Computer Science 2011-10-25 Steven Bergner , Michael Sedlmair , Sareh Nabi , Ahmed Saad , Torsten Möller

I use the holographic gauge/gravity duality to systematically calculate the jet quenching parameters in strongly coupled anisotropic plasmas in the presence of external magnetic fields. The magnetic field breaks down spatial rotation…

High Energy Physics - Phenomenology · Physics 2020-08-11 Romulo Rougemont

In this paper we lay out a simple set of relationships connecting the dynamics of fast plasma jets to the dynamical state of their ambient media. The objective is to provide a tool kit that can be used to connect the morphologies of radio…

High Energy Astrophysical Phenomena · Physics 2017-04-05 T. W. Jones , Chris Nolting , B. J. O'Neill , P. J. Mendygral

The design of inertial confinement fusion (ICF) ignition targets requires radiation-hydrodynamics simulations with accurate models of the fundamental material properties (i.e., equation of state, opacity, and conductivity). Validation of…

The physics of astrophysical jets can be divided into three regimes: (i) engine and launch (ii) propagation and collimation, (iii) dissipation and particle acceleration. Since astrophysical jets comprise a huge range of scales and…

High Energy Astrophysical Phenomena · Physics 2022-07-27 Eric G. Blackman , Sergey V. Lebedev

This study deals with the process and benefits of generating aerodynamic indicial-admittance functions with the support of computational fluid dynamics based on the Euler equations. A simple parametric analytical approximation is alongside…

Fluid Dynamics · Physics 2020-01-22 Marcello Righi , Marco berci
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