Results 21 to 30 of about 425,495 (159)
Coherent Inverse Compton Scattering in Fast Radio Bursts Revisited
The Astrophysical JournalGrowing observations of temporal, spectral, and polarization properties of fast radio bursts (FRBs) indicate that the radio emission of the majority of bursts is likely produced inside the magnetosphere of its central engine, likely a magnetar.
Yuanhong Qu, Bing Zhang
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X-ray study of bow shocks in runaway stars [PDF]
, 2017 Massive runaway stars produce bow shocks through the interaction of their winds with the interstellar medium, with the prospect for particle acceleration by the shocks. These objects are consequently candidates for non-thermal emission.
Benaglia, Paula +4 more
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The Origins of Narrow Spectra of Fast Radio Bursts
The Astrophysical JournalObservations find that some fast radio bursts (FRBs) have extremely narrowband spectra, i.e., Δ ν / ν _0 ≪ 1. We show that, when the angular size of the emission region is larger than the Doppler beaming angle, the observed spectral width (Δ ν / ν _0 ...
Pawan Kumar, Yuanhong Qu, Bing Zhang
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Multiwavelength observations of clusters of galaxies and the role of cluster mergers [PDF]
, 2000 Some clusters of galaxies have been identified as powerful sources of non-thermal radiation, from the radio to X-ray wavelengths. The classical models proposed for the explanation of this radiation usually require large energy densities in cosmic rays in
Blasi, Pasquale
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, 2020 The integrated HydroKinetic Model (iHKM) is applied to analyse the results of direct photon spectra as well as elliptic and triangular flow measurements in 200A GeV Au+Au collisions at RHIC for different centrality bins.
Naboka, V. Yu. +2 more
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Multiwavelength Variability and Jet Properties of Low-synchrotron-peaked BL Lacertae Objects
The Astrophysical JournalLow-synchrotron-peaked BL Lac objects (LBLs) are promising candidates for masquerading BL Lacs, and the mechanism responsible for their high-energy γ -ray emission still requires further investigation.
R. X. Zhou +4 more
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Radiation Spectral Synthesis of Relativistic Filamentation
, 2010 Radiation from many astrophysical sources, e.g. gamma-ray bursts and active galactic nuclei, is believed to arise from relativistically shocked collisionless plasmas.
Frederiksen +14 more
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The Astrophysical Journal LettersGRB 221009A is the brightest gamma-ray burst (GRB) observed to date. Extensive observations of its afterglow emission across the electromagnetic spectrum were performed, providing the first strong evidence of a jet with a nontrivial angular structure in ...
K. Abe +331 more
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Probing Orbital Parameters of Gamma-Ray Binaries with TeV Light Curves
The Astrophysical Journal, 2023 Gamma-ray binaries are binary systems in which the energy flux peaks in the gamma-ray energy band. They harbor a compact object (a neutron star or a black hole) orbiting around a massive star, which provides a strong radiation field.
Iurii Sushch, Brian van Soelen
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Transverse coherence properties of X-ray beams in third-generation synchrotron radiation sources
, 2008 This article describes a complete theory of spatial coherence for undulator radiation sources. Current estimations of coherence properties often assume that undulator sources are quasi-homogeneous, like thermal sources, and rely on the application of the
Bahrdt +23 more
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