English
Related papers

Related papers: 3D Hydrodynamic Simulations of Large-Scale Precess…

200 papers

We present the results of a three-dimensional, relativistic, hydrodynamic simulation of a precessing jet into which a compact blob of matter is injected. A comparison of synthetic radio maps computed from the hydrodynamic model, taking into…

We present 3-D numerical hydrodynamical simulations of precessing supersonic heavy jets to explore how well they serve as a model for generating molecular outflows from Young Stellar Objects. The dynamics are studied with a number of high…

Astrophysics · Physics 2019-08-15 J. A. Cliffe , Adam Frank , T. W. Jones

Jet precession is sometimes invoked to explain asymmetries in radio galaxy (RG) jets and "X/S/Z-shape" radio galaxies, caused by the presence of a binary black hole companion to the source active galactic nucleus (AGN) or by accretion…

High Energy Astrophysical Phenomena · Physics 2023-05-08 Chris Nolting , Jay Ball , Tri M. Nguyen

A significant fraction of extended radio sources presents a peculiar X-shaped radio morphology: in addition to the classical double lobed structure, radio emission is also observed along a second axis of simmetry in the form of diffuse…

Astrophysics of Galaxies · Physics 2017-10-11 P. Rossi , G. Bodo , A. Capetti , S. Massaglia

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

In this paper, we have modelled the dynamical and emission properties (in the presence of radiative losses and diffusive shock acceleration) of an observed S-shaped radio source (2MASX J12032061+131931) due to a precessing jet. In this…

Astrophysics of Galaxies · Physics 2022-06-22 Gourab Giri , Ravi Pratap Dubey , K. Rubinur , Bhargav Vaidya , Preeti Kharb

We present hydrodynamic simulations of molecular outflows driven by jets with a long period of precession, motivated by observations of arc-like features and S-symmetry in outflows associated with young stars. We simulate images of not only…

Astrophysics · Physics 2009-11-10 Michael D. Smith , Alex Rosen

We present hydrodynamical calculations carried out with the 3D yguazu-a code of a precessing jet model, which interacts with a plane parallel wind. This scenario describes an extragalactic jet, in which the jet source is in motion with…

We describe a new numerical 3D relativistic hydrodynamical code, the results of validation tests, and a comparison with earlier, 2D studies. The 3D code has been used to study the deflection and precession of relativistic flows. We find…

Astrophysics · Physics 2009-11-07 Philip A. Hughes , Mark A. Miller , G. Comer Duncan

The LOw Frequency ARray Two-metre Sky Survey second data release (LoTSS DR2) covers 27\% of the northern sky and contains around four million radio sources. The development of this catalogue involved a large citizen science project (Radio…

Astrophysics of Galaxies · Physics 2025-07-16 Maya Horton , Martin Hardcastle , George Miley , Cyril Tasse , Timothy Shimwell

Three dimensional numerical simulations of the response of a Lorentz factor 2.5 relativistic jet to precession at three different frequencies have been performed. Low, moderate and high precession frequencies have been chosen relative to…

Astrophysics · Physics 2009-11-06 P. Hardee , P. Hughes , A. Rosen , E. Gomez

Here we discuss two consecutive MERLIN observations of the X-ray binary LS I +61 303. The first observation shows a double-sided jet extending up to about 200 AU on both sides of a central source. The jet shows a bent S-shaped structure…

Astrophysics · Physics 2008-11-26 M. Massi , M. Ribo , J. M. Paredes , S. T. Garrington , M. Peracaula , J. Marti

We present the first radio emission simulations from high resolution three dimensional relativistic hydrodynamic jets, which allow for a study of the observational implications of the interaction between the jet and external medium. This…

We present multi-dimensional simulations of magnetized radiative jets appropriate to Young Stellar Objects. Magnetized jets subject to collisionally excited radiative losses have not, as yet, received extensive scrutiny. The purpose of this…

Astrophysics · Physics 2009-10-30 A. Frank , D. Ryu , T. W. Jones , A. Noriega-Crespo

Precessing relativistic jets launched by compact objects are rarely directly measured, and present an invaluable opportunity to better understand many features of astrophysical jets. In this Letter we present MeerKAT radio observations of…

Context: The long-standing question concerning jetted subgalactic-size (JSS) radio sources is whether they will evolve into large radio galaxies, die before escaping the host galaxy, or remain indefinitely confined to their compact size.…

Astrophysics of Galaxies · Physics 2025-03-19 C. Stanghellini , M. Orienti , C. Spingola , A. Zanichelli , D. Dallacasa , P. Cassaro , C. P. O'Dea , S. A. Baum , M. Pérez-Torres

Context. Radio galaxies with visible two-sided jet structures, such as NGC 1052, are sources of particular interest to study the collimation and shock structure of active galactic nuclei jets. High-resolution very-long-baseline…

High Energy Astrophysical Phenomena · Physics 2024-12-04 Ainara Saiz-Pérez , Christian M. Fromm , Manel Perucho , Oliver Porth , Matthias Kadler , Yosuke Mizuno , Andrew Chael , Karl Mannheim

Our understanding of large-scale radio jets in merger systems has been drastically improved in the era of VLA, VLBA/EVN, uGMRT, and MeerKAT. Twin Radio Galaxies (TRGs) are the rare interacting galaxy pairs where both supermassive black…

High Energy Astrophysical Phenomena · Physics 2025-06-03 Santanu Mondal , Gourab Giri , Ravi Joshi , Paul J. Wiita , Gopal-Krishna , Luis C. Ho

The giant jets represent a fundamental trace of the historical evolution of the outflow activity over timescales which are comparable to the accretion time of the outflow sources in their main protostellar phase. The study of such huge jets…

Astrophysics · Physics 2009-11-07 E. Masciadri , E. M. de Gouveia Dal Pino , A. C. Raga , A. Noriega-Crespo

Extragalactic jets exhibit a wide range of propagation orientations relative to the host galaxy's principal axis. This study investigate the spatiotemporal evolution of jets as a function of their propagation direction within their triaxial…

‹ Prev 1 2 3 10 Next ›