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Related papers: Time-dependent radio emission from evolving jets

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Context. Modern high resolution observations allow to view closer into the objects powering relativistic jets. This is especially the case for SS433, an X-ray binary from which a precessing jet is observed down to the sub-parsec scale.…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Remi Monceau-Baroux , Rony Keppens , Zakaria Meliani , Oliver Porth

We consider the case, in QCD, of a single jet propagating within a strongly interacting fluid, of finite extent. Interactions lead to the appearance of a source of energy-momentum within the fluid. The remnant jet that escapes the container…

Nuclear Theory · Physics 2022-09-07 Yasuki Tachibana , Chun Shen , Abhijit Majumder

The jets of active galactic nuclei can carry a large fraction of the accreted power of the black-hole system into interstellar and even extragalactic space. They radiate profusely from radio to X-ray and gamma-ray frequencies. In the most…

High Energy Astrophysical Phenomena · Physics 2009-09-15 A. P. Marscher

We present results of a detailed numerical study and theoretical analysis of the dynamics of internal shocks in relativistic jets and the non-thermal flares associated with these shocks. In our model internal shocks result from collisions…

Astrophysics · Physics 2009-11-11 Petar Mimica , Miguel-Angel Aloy , Ewald Mueller , Wolfgang Brinkmann

A series of simulated maps showing the appearance in total intensity of flows computed using a recently developed relativistic hydrodynamic code (Duncan \& Hughes 1994: ApJ, 436, L119) are presented. The radiation transfer calculations were…

Astrophysics · Physics 2009-10-28 Amy J. Mioduszewski , Philip A. Hughes , G. Comer Duncan

Most extragalactic jets in radio-loud Active Galactic Nuclei are bright and variable gamma-ray sources, which are continuously monitored with Fermi/LAT. We present the gamma-ray properties of the MOJAVE and TANAMI AGN samples of radio-loud…

Cosmology and Nongalactic Astrophysics · Physics 2010-06-15 M. Boeck , M. Kadler , G. Tosti , T. H. Burnett , C. Mueller , R. Ojha , J. Wilms

The giant planet atmospheres exhibit alternating prograde (eastward) and retrograde (westward) jets of different speeds and widths, with an equatorial jet that is prograde on Jupiter and Saturn and retrograde on Uranus and Neptune. The jets…

Earth and Planetary Astrophysics · Physics 2015-05-14 Junjun Liu , Tapio Schneider

With our coupled jet-fluid model, we study the nuclear modifications of full jets and jet structures for single inclusive jet and $\gamma$-jet events in relativistic heavy-ion collisions. The evolution of full jet showers is studied via a…

Nuclear Theory · Physics 2018-12-27 Ning-Bo Chang , Guang-You Qin , Yasuki Tachibana

Context. Relativistic jets emerging from AGN cores transfer energy from the core to their surrounding ISM/IGM. Because jets are observed to have finite opening angles, one needs to quantify the role of conical versus cylindrical jet…

High Energy Astrophysical Phenomena · Physics 2012-11-08 Remi Monceau-Baroux , Rony Keppens , Zakaria Meliani

The effect of rarefaction acceleration on the propagation dynamics and structure of relativistically hot jets is studied through relativistic hydrodynamic simulations. We emphasize the nonlinear interaction of rarefaction waves excited at…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Jin Matsumoto , Youhei Masada , Kazunari Shibata

We present the results for the dynamics and emission profiles of axi-symmetric numerical simulations of structured gamma-ray burst afterglow jets, computed using the relativistic moving-mesh hydrodynamics code GAMMA. We find that the…

High Energy Astrophysical Phenomena · Physics 2026-05-08 Sayan Kundu , Hendrik van Eerten

We report the mechanism for the formation of external particle jets on a spherical particle bed subjected to strong explosive loading, revealing a critical dependence on particle size. Under strong explosive loading, the formation of…

Fluid Dynamics · Physics 2025-12-23 Yifeng He , Junsheng Zeng , Baolin Tian , Yue Yang

We explore the physics of time-dependent hydrodynamic collimation of jets from Young Stellar Objects (YSOs). Using parameters appropriate to YSOs we have carried out high resolution hydrodynamic simulations modeling the interaction of a…

Astrophysics · Physics 2009-10-28 Adam Frank , Garrelt Mellema

Radiation flow through an inhomogeneous medium is critical in a wide range of physics and astronomy applications from transport across cloud layers on the earth to the propagation of supernova blast-waves producing UV and X-ray emission in…

The emission of $\gamma$-rays in jets emanating from the vicinity of collapsed stellar remnants, in binary systems known as microquasars, is investigated using a three dimensional relativistic hydrocode (PLUTO), in combination with two…

High Energy Astrophysical Phenomena · Physics 2015-06-18 T. Smponias , T. S. Kosmas

This paper reports on the results of a numerical investigation designed to address how the initially anisotropic appearance of a GRB remnant is modified by the character of the circumburst medium and by the possible presence of an…

Astrophysics · Physics 2014-11-18 Enrico Ramirez-Ruiz , Andrew I. MacFadyen

In the last years, Active Galactic Nuclei (AGN) have become more popular than ever. The possibility of using them to produce feedback effects that would help solving some of the still open questions connected to the hierarchical scenario of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Raffaella Morganti

We perform a series of so-called ``synthetic observations'' on a set of 3D MHD jet simulations which explicitly include energy-dependent transport of relativistic electrons, as described in the companion paper by Jones, Tregillis, & Ryu.…

Astrophysics · Physics 2007-05-23 I. L. Tregillis , T. W. Jones , Dongsu Ryu

We report on an effort to study the connections between dynamics in simulated radio galaxy plasma flows and the properties of nonthermal electron populations carried in those flows. To do this we have introduced a new numerical scheme for…

Astrophysics · Physics 2007-05-23 T. W. Jones , I. L. Tregillis , Dongsu Ryu

We have studied three-dimensional hydrodynamic interactions of relativistic extragalactic jets with two-phase ambient media. These jets propagate through a denser homogeneous gas and then impact clouds with densities 100 to 1000 times…

Astrophysics · Physics 2008-11-26 Eunwoo Choi , Paul J. Wiita , Dongsu Ryu
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