Results 61 to 70 of about 425,495 (159)

The evolution of the large-scale emission in Fanaroff-Riley type I jets [PDF]

open access: yes, 2017
Recent observations in X-rays and gamma-rays of nearby Fanaroff-Riley type I (FR I) radio galaxies have raised the question of the origin of the emission detected in the termination structures of their jets.
Bordas, P., Bosch-Ramon, V., Perucho, M.
core  

Afterglow Linear Polarization Signatures from Shallow GRB Jets: Implications for Energetic GRBs

open access: yesThe Astrophysical Journal
Gamma-ray bursts (GRBs) are powered by ultrarelativistic jets. The launching sites of these jets are surrounded by dense media, which the jets must cross before they can accelerate and release high-energy emission.
Gal Birenbaum   +4 more
doaj   +1 more source

Inferring the Intrinsic Energy Function of FRB 20220912A

open access: yesThe Astrophysical Journal
The statistical analysis of fast radio burst (FRB) samples from repeaters may suffer from a band-limited selection effect, which can bias the observed distribution.
Xiaohui Liu   +4 more
doaj   +1 more source

Numerical Study of the Magnetic Field Effects on the Heat Transfer and Entropy Generation Aspects of a Power Law Fluid over an Axisymmetric Stretching Plate Structure

open access: yesEntropy, 2017
Numerical investigation of the effects of magnetic field strength, thermal radiation, Joule heating, and viscous heating on a forced convective flow of a non-Newtonian, incompressible power law fluid in an axisymmetric stretching sheet with variable ...
Payam Hooshmand   +6 more
doaj   +1 more source

On the Potential Cosmogenic Origin of the Ultra-high-energy Event KM3-230213A

open access: yesThe Astrophysical Journal Letters
On 2023 February 13, the KM3NeT/ARCA telescope observed a track-like event compatible with a ultra-high-energy muon with an estimated energy of 120 PeV, produced by a neutrino with an even higher energy, making it the most energetic neutrino event ever ...
O. Adriani   +292 more
doaj   +1 more source

Kinetic simulations of relativistic magnetic reconnection with synchrotron and inverse Compton cooling

open access: yes, 2018
First results are presented from kinetic numerical simulations of relativistic collisionless magnetic reconnection in pair plasma that include radiation reaction from both synchrotron and inverse Compton (IC) processes, motivated by non-thermal high ...
Chruślińska, Martyna   +2 more
core   +2 more sources

Reverse Shock Emission from Misaligned Structured Jets in Gamma-Ray Bursts

open access: yesThe Astrophysical Journal
The afterglow of gamma-ray bursts (GRBs) has been extensively discussed in the context of shocks generated during an interaction of relativistic outflows with their ambient medium. This process leads to the formation of both a forward and a reverse shock.
Sen-Lin Pang, Zi-Gao Dai
doaj   +1 more source

Direct-photon and heavy-flavour production in proton-proton collisions at $\sqrt{s} = 7$ TeV with ALICE

open access: yes, 2018
Low-mass dielectron measurements play an essential role in the study of the Quark-Gluon Plasma (QGP) created in ultra-relativistic heavy-ion collisions.
Scheid, Horst Sebastian
core   +1 more source

Discovery of Diffuse Hard X-ray Emission around Jupiter with Suzaku

open access: yes, 2010
We report the discovery of diffuse hard (1-5 keV) X-ray emission around Jupiter in a deep 160 ks Suzaku XIS data. The emission is distributed over ~16x8 Jovian radius and spatially associated with the radiation belts and the Io Plasma Torus.
Bagenal   +12 more
core   +1 more source

On the External Inverse Compton Scattering off the Prompt Emission in GRB 221009A

open access: yesThe Astrophysical Journal
The temporal evolution of the TeV emission of GRB 221009A displays a smooth transition from an initial rapid rise to a slower rise and eventually a decay phase. The smooth light curve suggests an afterglow origin of the TeV emission. The temporal overlap
Cui-Yuan Dai   +4 more
doaj   +1 more source

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