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Inverse Compton Scattering (ICS) by a relativistic electron beam jet at GeV energies (emitted by a compact object as a NS, BH,...), a NSJ, onto thermal BBR photons (from a nearby stellar companion) may originate a collinear gamma jet (GJ).…

Astrophysics · Physics 2026-02-19 D. Fargion , A. Salis

We study the problem of a Herbig-Haro jet with a uniformly accelerating ejection velocity, travelling into a uniform environment. For the ejection density we consider two cases: a time-independent density, and a time-independent mass loss…

Solar and Stellar Astrophysics · Physics 2022-03-23 J. I. Castorena , A. C. Raga , A. Esquivel , A. Rodríguez-González , L. Hernández-Martínez , J. Cantó , F. Clever

The main experimental results on jet production at HERA are reviewed. A study of jet shapes shows that the internal structure of jets is well understood. The potential to accurately determine the strong coupling constant using jet rates is…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tancredi Carli

Bose-Einstein correlations and invariant momentum distributions are analyzed for longitudinally expanding finite systems, like jets in elementary particle collisions or systems created in high energy heavy ion reactions. Cross-term…

High Energy Physics - Phenomenology · Physics 2008-02-03 T. Csorgo , B. Lorstad

The jet quenching phenomenon in heavy ion collisions provides a strong evidence of the modification of parton shower in the quark-gluon plasma (QGP). Jet substructure observables can probe various aspects of the jet formation mechanism.…

High Energy Physics - Phenomenology · Physics 2016-11-22 Yang-Ting Chien

The formation mechanism of CO clouds observed with NANTEN2 and Mopra telescope toward the stellar cluster Westerlund 2 is studied by three-dimensional magnetohydrodynamic (MHD) simulations taking into account the interstellar cooling. These…

High Energy Astrophysical Phenomena · Physics 2017-02-27 Yuta Asahina , Tomohisa Kawashima , Naoko Furukawa , Rei Enokiya , Hiroaki Yamamoto , Yasuo Fukui , Ryoji Matsumoto

We present numerical simulations investigating the interaction of AGN jets with galaxy clusters, for the first time taking into account the dynamic nature of the cluster gas and detailed cluster physics. The simulations successfully…

Astrophysics · Physics 2009-11-11 S. Heinz , M. Brueggen , A. Young , E. Levesque

The central engine causing the production of jets in radio sources may work intermittently, accelerating shells of plasma with different mass, energy and velocity. Faster but later shells can then catch up slower earlier ones. In the…

Astrophysics · Physics 2009-11-06 Maddalena Spada , Gabriele Ghisellini , Davide Lazzati , Annalisa Celotti

Relativistic magnetized jets, originating near black holes, are observed to exhibit sub-structured flows. In this study, we present synthetic synchrotron emission signatures for different lines of sight and frequencies, derived from…

High Energy Astrophysical Phenomena · Physics 2024-09-25 Ravi Pratap Dubey , Christian Fendt , Bhargav Vaidya

We present an internal shocks model to investigate particle acceleration and radiation production in microquasar jets. The jet is modelled with discrete ejecta at various time intervals. These ejecta (or 'shells') may have different…

Astrophysics · Physics 2009-04-14 Omar Jamil , Rob Fender , Christian Kaiser

Jet precession is considered to universally exist in different-scale astronomical phenomena, including gamma-ray bursts (GRBs). For the long-lived GRB central engine, the relativistical precessing jets will periodically inject kinetic…

High Energy Astrophysical Phenomena · Physics 2021-08-11 Bao-Quan Huang , Tong Liu

Recent pulsed-power experiments have demonstrated the formation of astrophysically-relevant, differentially rotating plasmas [1]. Key features of the plasma flows are the discovery of a quasi-Keplerian rotation curve, the launching of…

Jets and outflows are thought to be an integral part of accretion phenomena and are associated with a large variety of objects. In these systems, the interaction of magnetic fields with an accretion disk and/or a magnetized central object…

We present Space Telescope Imaging Spectrograph (STIS) spectral images of the HH~30 stellar jet taken through a wide slit over two epochs. The jet is unresolved spectrally, so the observations produce emission-line images for each line in…

Astrophysics · Physics 2011-02-11 P. Hartigan , J. Morse

High-mass microquasar jets, produced in an accreting compact object in orbit around a massive star, must cross a region filled with stellar wind. The combined effects of the wind and orbital motion can strongly affect the jet properties on…

High Energy Astrophysical Phenomena · Physics 2021-12-22 Maxim V. Barkov , Valenti Bosch-Ramon

Relativistic jets can interact with the ambient gas distribution of the host galaxy, before breaking out to larger scales. In the past decade several studies have simulated jet-driven outflows to understand how they affect the nearby…

Astrophysics of Galaxies · Physics 2022-01-05 Dipanjan Mukherjee , Geoffrey V. Bicknell , Alexander Y. Wagner

GW170817/GRB170817A has offered unprecedented insight into binary neutron star post-merger systems. Its Prompt and afterglow emission imply the presence of a tightly collimated relativistic jet with a smooth transverse structure. However,…

High Energy Astrophysical Phenomena · Physics 2019-01-30 Adithan Kathirgamaraju , Alexander Tchekhovskoy , Dimitrios Giannios , Rodolfo Barniol Duran

Solar jets are observed as collimated plasma beams over a large range of temperatures and wavelengths. They have been observed in Halpha and optical lines for more than 50 years and called surges. The term "jet" comes from X-ray…

Solar and Stellar Astrophysics · Physics 2022-01-28 Brigitte Schmieder

The underlying plasma composition of relativistic extragalactic jets remains largely unknown. Relativistic magnetohydrodynamic (RMHD) models are able to reproduce many of the observed macroscopic features of these outflows. The nonthermal…

High Energy Astrophysical Phenomena · Physics 2021-09-01 N. R. MacDonald , K. -I. Nishikawa

We investigate the dynamical propagation of the South-East jet from the Crab pulsar interacting with supernova ejecta by means of three-dimensional relativistic MHD numerical simulations with the PLUTO code. The initial jet structure is set…

High Energy Astrophysical Phenomena · Physics 2015-06-17 A. Mignone , E. Striani , M. Tavani , A. Ferrari
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