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We considered the Inverse Compton Scattering (ICS) of charged particles onto photons whose distribution is a Black Body Radiation (BBR) deriving the exact energy and angular differential distribution in the general case and in its most…

Astrophysics · Physics 2026-02-19 D. Fargion , A. Salis

We suggest that the luminous extreme ultraviolet (EUV) emission which has been detected recently from clusters of galaxies is Inverse Compton (IC) scattering of Cosmic Microwave Background (CMB) radiation by low energy cosmic ray electrons…

Astrophysics · Physics 2009-10-30 Craig L. Sarazin , Richard Lieu

We discuss growing evidence that pulsar high energy is emission is generated via Inverse Compton mechanism. We reproduce the broadband spectrum of Crab pulsar, from UV to very high energy gamma-rays - nearly ten decades in energy, within…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Maxim Lyutikov

Detailed information on the physical parameters in the sources of cosmological Gamma-Ray Bursts (GRBs) is obtained from few plausible assumptions consistent with observations. Model-independent requirements posed by these assumptions on the…

Astrophysics · Physics 2009-10-31 E. V. Derishev , V. V. Kocharovsky , Vl. V. Kocharovsky

The recent detection of X-ray flares during the afterglow phase of gamma-ray bursts (GRBs) suggests an inner-engine origin, at radii inside the forward shock. There must be inverse Compton (IC) emission arising from such flare photons…

Astrophysics · Physics 2008-11-26 Xiang-Yu Wang , Zhuo Li , Peter Meszaros

The collimation and evolution of relativistic outflows in $\gamma$-ray bursts (GRBs) are determined by their interaction with the stellar envelope through which they travel before reaching the much larger distance where the energy is…

High Energy Astrophysical Phenomena · Physics 2016-01-12 Chiara Ceccobello , Pawan Kumar

Motivated by the PAMELA anomaly in the fluxes of cosmic-ray electron and positron, we study the cosmic gamma-ray induced by the inverse Compton (IC) scattering process in unstable dark matter scenario assuming that the anomaly is due to the…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-19 Koji Ishiwata , Shigeki Matsumoto , Takeo Moroi

Emission of high energy gamma rays via the non-linear inverse Compton scattering process (ICS) in interactions of ultra-intense laser pulses with thin solid foils is studied using particle-in-cell simulations. It is shown that the angular…

Plasma Physics · Physics 2020-05-19 Jiří Vyskočil , Evgeny Gelfer , Ondřej Klimo

Synchrotron radiation mechanism, when electrons are accelerated in a relativistic shock, is known to have serious problems to explain the observed gamma-ray spectrum below the peak for most Gamma-Ray Bursts (GRBs); the synchrotron spectrum…

High Energy Astrophysical Phenomena · Physics 2012-11-02 R. Barniol Duran , Z. Bosnjak , P. Kumar

Inverse Compton (IC) scattering of nuclear photons with relativistic electrons in the lobes of powerful radio galaxies and quasars can give detectable extended X-ray emission from the radio lobes if relativistic electrons with a Lorentz…

Astrophysics · Physics 2009-11-06 G. Brunetti , M. Cappi , G. Setti , L. Feretti , D. E. Harris

The highly luminous and variable prompt emission in Gamma-Ray Bursts (GRBs) arises in an ultra-relativistic outflow. The exact underlying radiative mechanism shaping its non-thermal spectrum is still uncertain, making it hard to determine…

High Energy Astrophysical Phenomena · Physics 2018-01-31 Ramandeep Gill , Jonathan Granot

The principal paradigm for the prompt emission of gamma-ray bursts invokes diffusive acceleration at shocks internal to the dynamic ultrarelativistic outflow. This paper explores expectations for burst emission spectra arising from shock…

Astrophysics · Physics 2009-11-10 Matthew G. Baring , Matthew L. Braby

Shocks around clusters of galaxies accelerate electrons which upscatter the Cosmic Microwave Background photons to higher-energies. We use an analytical model to calculate this inverse Compton (IC) emission, taking into account the effects…

High Energy Astrophysical Phenomena · Physics 2015-09-09 Ryo Yamazaki , Abraham Loeb

Inverse Compton scattering appears to play a more important role in the diffuse Galactic continuum emission than previously thought, from MeV to GeV energies. We compare models having a large inverse Compton component with EGRET data, and…

Astrophysics · Physics 2007-05-23 I. V. Moskalenko , A. W. Strong

The afterglow emission from gamma-ray bursts (GRBs) is believed to originate from a relativistic blast wave driven into the circumburst medium. Although the afterglow emission from radio up to X-ray frequencies is thought to originate from…

High Energy Astrophysical Phenomena · Physics 2020-06-18 Hao Zhang , Ian Christie , Maria Petropoulou , Jesus M. Rueda-Becerril , Dimitrios Giannios

Compton scattering of photons off high-energy electrons is a fundamental quantum mechanical process widely utilized to produce a $\gamma$-ray beam for scientific research. Instead of injecting laser light into a storage ring as a…

Large-voltage and high-temperature plasma columns produced by pinch discharge can generate gamma-ray flashes with energy spectra and spectral evolution consistent with that observed in gamma-ray bursts (GRBs). The inverse Compton scattering…

Astrophysics · Physics 2014-10-13 Mei Wu , Li Chen , Ti-pei Li

Unsteady activity of gamma-ray burst sources leads to internal shocks in their emergent relativistic wind. We study the emission spectra from such shocks, assuming that they produce a power-law distribution of relativistic electrons and…

Astrophysics · Physics 2009-10-30 Ravi Pilla , Abraham Loeb

The fireball model of gamma-ray bursts predicted that when the energetic blast wave encountered the surrounding medium, there will be afterglow emission, and the subsequent afterglow observations appeared to confirm this prediction. In this…

Astrophysics · Physics 2007-05-23 D. M. Wei , T. Lu

We explore several models which might be proposed to explain recent possible detections of high-energy (TeV) gamma rays in association with low-energy gamma-ray bursts (GRBs). Likely values (and/or upper limits) for the source energies in…

Astrophysics · Physics 2009-11-07 P. C. Fragile , G. J. Mathews , J. Poirier , T. Totani