Klein-Nishina effects in the spectra of non-thermal sources immersed in external radiation fields [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 We study Klein-Nishina (KN) effects in the spectrum produced by a steady state, non-thermal source where rapidly accelerated electrons cool by emitting synchrotron radiation and Compton upscattering ambient photons produced outside the source. We focus on the case where the radiation density inside the source exceeds that of the magnetic field. We show
Moderski, R. +3 more
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Extended X-ray emission from non-thermal sources in the COSMOS field: A detailed study of a large radio galaxy at z=1.168 [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 X-ray selected galaxy group samples are usually generated by searching for extended X- ray sources that reflect the thermal radiation of the intragroup medium. On the other hand, large radio galaxies that regularly occupy galaxy groups also emit in the X-
Cappelluti, Nico +7 more
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Particle Injection and Nonthermal Particle Acceleration in Relativistic Magnetic Reconnection
The Astrophysical Journal, 2023 Magnetic reconnection in the relativistic regime has been proposed as an important process for the efficient production of nonthermal particles and high-energy emission. Using fully kinetic particle-in-cell simulations, we investigate how the guide-field
Omar French +3 more
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Non-thermal processes in bowshocks of runaway stars. Application to Zeta Oph [PDF]
, 2012 Runaway massive stars are O- and B-type stars with high spatial velocities with respect to the interstellar medium. These stars can produce bowshocks in the surrounding gas.
del Valle, María Victoria +1 more
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The Ultraviolet C ii Lines as a Diagnostic of κ-distributed Electrons in Planetary Nebulae
The Astrophysical Journal, 2022 Non-Maxwellian κ electron energy distributions (EEDs) have been proposed in recent years to resolve the so-called “electron temperature and abundance discrepancy problem” in the study of planetary nebulae (PNs).
Zheng-Wei Yao, Yong Zhang
doaj +1 more source
The Astrophysical Journal, 2023 Blazar emission is dominated by nonthermal radiation processes that are highly variable across the entire electromagnetic spectrum. Turbulence, which can be a major source of nonthermal particle acceleration, can widely exist in the blazar emission ...
Haocheng Zhang +5 more
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Nonthermal Emission from the Arches Cluster (G0.121+0.017) and the Origin of $\gamma$-ray Emission from 3EG J1746-2851 [PDF]
, 2003 High resolution VLA observations of the Arches cluster near the Galactic center show evidence of continuum emission at $\lambda$3.6, 6, 20 and 90cm. The continuum emission at $\lambda$90cm is particularly striking because thermal sources generally become
Anantharamaiah K. R. +9 more
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A spectroscopic search for AGN activity in the reionization era [PDF]
, 2017 The ubiquity of Lyman alpha (Ly$\alpha$) emission in a sample of four bright [O III]-strong star-forming galaxies with redshifts above 7 has led to the suggestion that such luminous sources represent a distinct population compared to their fainter, more ...
Ellis, Richard S. +6 more
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Evolution of non-thermal emission from shell associated with AGN jets [PDF]
, 2011 We explore the evolution of the emissions by accelerated electrons in shocked shells driven by jets in active galactic nuclei (AGNs). Focusing on powerful sources which host luminous quasars, we evaluated the broadband emission spectra by properly taking
Ito, H. +3 more
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Distinguishing coherent and thermal photon noise in a circuit QED system [PDF]
, 2018 In the cavity-QED architecture, photon number fluctuations from residual cavity photons cause qubit dephasing due to the AC Stark effect. These unwanted photons originate from a variety of sources, such as thermal radiation, leftover measurement photons,
Campbell, Dan +11 more
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