Results 31 to 40 of about 629,027 (290)

SDSS J211852.96−073227.5: The first non-local, interacting, late-type intermediate Seyfert galaxy with relativistic jets [PDF]

open access: yesAstronomy & Astrophysics, 2020
It has been often suggested that a tangible relation exists between relativistic jets in active galactic nuclei (AGN) and the morphology of their host galaxies. In particular, relativistic jets may commonly be related to merging events.
E. Jarvela   +5 more
semanticscholar   +1 more source

Magnetic inhibition of the recollimation instability in relativistic jets [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
In this paper, we describe the results of three-dimensional relativistic magnetohydrodynamic simulations aimed at probing the role of regular magnetic field on the development of the instability that accompanies recollimation of relativistic jets.
J. Matsumoto   +2 more
semanticscholar   +1 more source

Extragalactic relativistic jets [PDF]

open access: yesAIP Conference Proceedings, 2011
Extragalactic relativistic jets are engines able to carry out to large distances a huge amount of power, not only in the form of radiation, but especially in the form of kinetic energy of matter and fields. As such, they can be thought as one of the most efficient engines of Nature, perhaps even more efficient than accretion.
Gabriele Ghisellini   +3 more
openaire   +2 more sources

Structured, relativistic jets driven by radiation [PDF]

open access: yes, 2020
Relativistic jets, or highly collimated and fast-moving outflows, are endemic to many astrophysical phenomena. The jets produced by gamma-ray bursts and tidal disruption events are accompanied by the accretion of material onto a black hole or neutron ...
E. Coughlin, M. Begelman
semanticscholar   +1 more source

Simulations of relativistic extragalactic jets [PDF]

open access: yesThe Astrophysical Journal, 1994
We describe a method for the numerical solution of the relativistic Euler equations which we have found to be both robust and efficient, and which has enabled us to simulate relativistic jets. The technique employs a solver of the Godunov-type, with approximate solution of the local Riemann problems, applied to laboratory frame variables.
Duncan, G. Comer, Hughes, Philip A.
openaire   +2 more sources

The relativistic Jet in M84 [PDF]

open access: yesSymposium - International Astronomical Union, 1996
The elliptical galaxy M84 (NGC 4374, UGC 07494) hosts an FR-I radio continuum source (Laing & Bridle 1987, MNRAS, 228, 557) and a dusty, warped optical emission line “disk” (Baumet al.1988, ApJS, 68, 643; Goudfrooijet al.1994, A&ApS, 105, 341).
J. M. Wrobel, R. C. Walker, A. H. Bridle
openaire   +1 more source

Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433 [PDF]

open access: yesScience
SS 433 is a microquasar, a stellar binary system that launches collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.S.S.) and found an energy-dependent shift in the apparent position of the gamma ...
F. Aharonian   +166 more
semanticscholar   +1 more source

A powerful hydrodynamic booster for relativistic jets [PDF]

open access: yes, 2006
Velocities close to the speed of light are a robust observational property of the jets observed in microquasars and AGNs, and are expected to be behind much of the phenomenology of GRBs. Yet, the mechanism boosting relativistic jets to such large Lorentz
Aloy, Miguel A., Rezzolla, Luciano
core   +2 more sources

Relativistic Jets in Active Galactic Nuclei [PDF]

open access: yes, 2018
The nuclei of most normal galaxies contain supermassive black holes, which can accrete gas through a disk and become active. These Active Galactic Nuclei, AGN, can form jets which are observed on scales from AU to Mpc and from meter wavelengths to TeV ...
R. Blandford, D. Meier, A. Readhead
semanticscholar   +1 more source

Relativistic Jets in Gamma-Ray-Emitting Narrow-Line Seyfert 1 Galaxies [PDF]

open access: yesGalaxies, 2019
Before the launch of the Fermi Gamma-ray Space Telescope satellite only two classes of active galactic nuclei (AGN) were known to generate relativistic jets and thus to emit up to the γ -ray energy range: blazars and radio galaxies, both hosted in giant ...
F. D’Ammando
semanticscholar   +1 more source

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