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Related papers: Hotspots, Jets and Environments

200 papers

We study particle correlations in high energy jets by comparing the measured energy-energy correlator (EEC) with that constructed from two individual energy flows with respect to the jet axis. This comparison demonstrates that genuine…

High Energy Physics - Phenomenology · Physics 2025-07-28 Wenbin Zhao , Volker Koch , Feng Yuan

We study the collimation and acceleration of the jets in the nearby giant radio galaxy NGC 315, using multifrequency Very Long Baseline Array observations and archival High Sensitivity Array and Very Large Array data. We find that the jet…

High Energy Astrophysical Phenomena · Physics 2021-03-17 Jongho Park , Kazuhiro Hada , Masanori Nakamura , Keiichi Asada , Guang-Yao Zhao , Motoki Kino

VLBI observations of relativistic outflows (jets) in galactic nuclei, complemented with detailed studies made in other spectral domains, have become an effective tool for investigating the physics of nuclear regions in galaxies.…

Astrophysics · Physics 2007-09-03 Andrei Lobanov

Relativistic jets of radio loud active galactic nuclei (AGN) produce highly directed, intense beams of radiation. A fraction of this beamed radiation scatters on the thermal plasma generally surrounding an AGN. The morphology of the…

Astrophysics · Physics 2009-11-10 Conrad Cramphorn , Sergey Sazonov , Rashid Sunyaev

Microquasar (MQ) jets are sites of particle acceleration and synchrotron emission. Such synchrotron radiation has been detected coming from jet regions of different spatial scales, which for the instruments at work nowadays appear as…

Astrophysics · Physics 2008-11-26 V. Bosch-Ramon

High-mass microquasars are binary systems composed by a massive star and a compact object from which relativistic jets are launched. Regarding the companion star, observational evidence supports the idea that winds of hot stars are formed…

High Energy Astrophysical Phenomena · Physics 2009-08-07 Anabella T. Araudo , Valenti Bosch-Ramon , Gustavo E. Romero

We consider effects on an (ultra-) relativistic jet and its ambient medium caused by high energy cosmic rays accelerated at the jet side boundary. As illustrated by simple models, during the acceleration process a flat cosmic ray…

Astrophysics · Physics 2009-10-31 M. Ostrowski

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…

We present new, high dynamic range VLA images of the inner jet of the closest radio galaxy, Centaurus A. Over a ten-year baseline we detect apparent sub-luminal motions (v ~ 0.5c) in the jet on scales of hundreds of pc. The inferred speeds…

Astrophysics · Physics 2008-11-26 M. J. Hardcastle , D. M. Worrall , R. P. Kraft , W. R. Forman , C. Jones , S. S. Murray

Astrophysical jets are associated with the formation of young stars of all masses, stellar and massive black holes, and perhaps even with the formation of massive planets. Their role in the formation of planets, stars, and galaxies is…

Astrophysics · Physics 2008-08-21 Ralph E. Pudritz , Robi Banerjee , Rachid Ouyed

The observation of the strong suppression of high pT hadrons in heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) at BNL has motivated a large experimental program using hard probes to characterize the deconfined medium…

Nuclear Experiment · Physics 2010-11-11 M. Estienne

Jet physics provides a powerful tool to investigate interaction properties of quarks and gluons. These studies have been possible at an energy never investigated before at LHC. In this proceedings we review the main characteristics of…

High Energy Physics - Experiment · Physics 2016-08-02 Murilo Rangel

Jets, collimated outflows of particles and fields, are observed in a wide variety of astrophysical systems, including Active Galactic Nuclei of various types, microquasars, gamma-ray bursts, and young stellar objects. Despite intensive…

High Energy Astrophysical Phenomena · Physics 2021-06-29 Gustavo E. Romero

Despite the prevalence of jets in accreting systems and their impact on the surrounding medium, the fundamental physics of how they are launched and collimated is not fully understood. Radio observations of local compact objects, including…

High Energy Astrophysical Phenomena · Physics 2018-10-17 Deanne L. Coppejans , James C. A. Miller-Jones , Elmar G. Koerding , Gregory R. Sivakoff , Michael P. Rupen

High energy emission can be produced in the interaction sites of both galactic and extragalactic jets with the surrounding medium. We have developed a radiative model that accounts for the continuous injection of relativistic electrons in…

High Energy Astrophysical Phenomena · Physics 2011-07-14 P. Bordas , V. Bosch-Ramon , M. Perucho

Since Fanaroff & Riley (1974) reported the morphological and brightness dichotomy of radiogalaxies, and it became clear that the symmetric emission from jets and counter-jets in the centre-brightened, less powerful, FRI sources could be…

High Energy Astrophysical Phenomena · Physics 2020-02-26 Manel Perucho

We review recent developments related to jet clustering algorithms and jet reconstruction, with particular emphasis on their implications in heavy ion collisions. These developments include fast implementations of sequential recombination…

High Energy Physics - Phenomenology · Physics 2009-10-09 Juan Rojo

These proceedings present a brief overview of the main results on jet-modifications in heavy ion collisions at RHIC. In heavy ion collisions, jets are studied using single hadron spectra and di-hadron correlations with a high-\pt{} trigger…

Nuclear Experiment · Physics 2008-08-07 M. van Leeuwen

Interest and problems in the studies of diffraction at LHC are highlighted. Predictions for the global characteristics of proton-proton interactions at the LHC energy are given. Potential discoveries of the antishadow scattering mode and…

High Energy Physics - Phenomenology · Physics 2009-11-07 V. A. Petrov , A. V. Prokudin , S. M. Troshin , N. E. Tyurin

The relatively intense X-ray emission from large scale (tens to hundreds kpc) jets discovered with Chandra likely implies that jets (at least in powerful quasars) are still relativistic at that distances from the active nucleus. In this…

Astrophysics · Physics 2009-11-07 F. Tavecchio , G. Ghisellini , A. Celotti