Results 101 to 110 of about 629,027 (290)

Relativistic jet models for two low-luminosity radio galaxies: evidence for backflow?

, 2012
We show that asymmetries in total intensity and linear polarization between the radio jets and counter-jets in two lobed Fanaroff-Riley Class I (FR I) radio galaxies, B2 0206+35 (UGC 1651) and B2 0755+37 (NGC 2484), can be accounted for if these jets are
A. H. Bridle, Aloy, Bondi, Canvin, Canvin, Falco, Fanaroff, Guidetti, Guidetti, Hardcastle, Katz-Stone, Katz-Stone, Laing, Laing, Laing, Laing, Laing, Laing, Laing, McNamara, Miller, Norman, Norman, Parma, Parma, Parma, Perucho, Press, R. A. Laing, Rossi, Saxton, Wardle   +31 more
core   +1 more source

Extragalactic Relativistic Jets and Nuclear Regions in Galaxies [PDF]

, 2006
Past years have brought an increasingly wider recognition of the ubiquity of relativistic outflows (jets) in galactic nuclei, which has turned jets into an effective tool for investigating the physics of nuclear regions in galaxies.
A. Pedlar, A.B. Peck, A.P. Lobanov, A.P. Lobanov, A.P. Lobanov, A.P. Lobanov, A.P. Lobanov, A.P. Lobanov, A.P. Lobanov, A.P. Lobanov, A.P. Marscher, C. Fendt, C.G. Mundell, D.L. Meier, E. Ros, H. Falcke, H.R. Klöckner, I. Agudo, J.A. Zensus, J.E. Conway, J.L. Góomez, J.R. Goikoechea, K.I. Kellermann, M. Hujeirat, M. Kadler, M. Perucho, M. Perucho, M. Perucho, M. Sikora, M.L. Lister, N. Vlahakis, R.C. Walker, S. Koide, S.C. Unwin, S.G. Jorstad, S.S. Komissarov, V. Semenov, W. Junor   +37 more
core   +3 more sources

Numerical Simulation of Radiatively Driven Transonic Relativistic Jets

The Astrophysical Journal
We perform the numerical simulations of axisymmetric, relativistic, optically thin jets under the influence of the radiation field of an accretion disk.
Raj Kishor Joshi, Indranil Chattopadhyay, Antonios Tsokaros, Priyesh Kumar Tripathi   +3 more
doaj   +1 more source

How do recollimation-induced instabilities shape the propagation of hydrodynamic relativistic jets?

Astronomy & Astrophysics
Context. Recollimation is a phenomenon of particular importance in the dynamical evolution of jets and in the emission of high-energy radiation. Additionally, the full comprehension of this phenomenon provides insights into fundamental properties of jets
Costa A., Bodo G., Tavecchio F., Rossi P., Coppi P., Sciaccaluga A., Boula S.   +6 more
doaj   +1 more source

Some Notes About the Current Researches on the Physics of Relativistic Jets

Frontiers in Astronomy and Space Sciences, 2022
Some highlights of the recent researches in the field of relativistic jets are reviewed and critically analyzed. Given the extent of the available literature, this essay symbolically takes the baton from the outstanding and recent review by Blandford ...
Luigi Foschini
doaj   +1 more source

The power of relativistic jets is larger than the luminosity of their accretion disks [PDF]

Nature, 2014
Theoretical models for the production of relativistic jets from active galactic nuclei predict that jet power arises from the spin and mass of the central supermassive black hole, as well as from the magnetic field near the event horizon.
G. Ghisellini, F. Tavecchio, L. Maraschi, A. Celotti, T. S. I. -. O. Brera, Sissa, I. Trieste, Univ. Insubria, Eso - Munich   +8 more
semanticscholar   +1 more source

Impact of Induced Electric Fields Inside the Magnetopause on Magnetopause Shadowing of Radiation Belt Electrons

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Loss of relativistic electrons with energies above 0.5 MeV through the magnetopause, commonly referred to as magnetopause shadowing, has been extensively investigated using both simulations and observations. However, direct and systematic observational evidence remains limited. In this study, we extend a previously developed magnetopause model
Kyung‐Chan Kim, Dae‐Young Lee
wiley   +1 more source

Particle Acceleration, Magnetic Field Generation, and Associated Emission in Collisionless Relativistic Jets

, 2008
Nonthermal radiation observed from astrophysical systems containing relativistic jets and shocks, e.g., active galactic nuclei (AGNs), gamma-ray bursts (GRBs), and Galactic microquasar systems usually have power-law emission spectra.
G. J. FISHMAN, Hededal C. B., Jackson J. D., K.-I. NISHIKAWA, P. HARDEE, Y. MIZUNO   +5 more
core   +1 more source

Jump-starting Relativistic Flows and the M87 Jet

The Astrophysical Journal
We point out the dominant importance of plasma injection effects of relativistic winds from pulsars and black holes. We demonstrate that outside the light cylinder, the magnetically dominated outflows sliding along the helical magnetic field move nearly ...
Maxim Lyutikov, Ahmad Ibrahim
doaj   +1 more source

Relativistic Jets Shine through Shocks or Magnetic Reconnection [PDF]

, 2015
Observations of gamma-ray-bursts and jets from active galactic nuclei reveal that the jet flow is characterized by a high radiative e ffi ciency and that the dissipative mechanism must be a powerful accelerator of non-thermal particles.
L. Sironi, M. Petropoulou, D. Giannios
semanticscholar   +1 more source