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Compton scattering between electrons and photons plays a crucial role in astrophysical plasmas. Many important aspects of this process can be captured by using the so-called Compton scattering kernel. For isotropic media, exact analytic…

宇宙学与河外天体物理 · 物理学 2019-10-03 Abir Sarkar , Jens Chluba , Elizabeth Lee

We discuss a new solution of the Kompaneets-equation for physical situations in which low frequency photons, forming relatively narrow spectral details, are Compton scattered in an isotropic, infinite medium with an intense ambient…

天体物理学 · 物理学 2009-11-13 J. Chluba , R. A. Sunyaev

Compton scattering is involved in many astrophysical situations. It is well known and has been studied in detail for the past fifty years. Exact formulae for the different cross sections are often complex, and essentially asymptotic…

高能天体物理现象 · 物理学 2015-05-13 R. Belmont

We calculate the first relativistic corrections to the Kompaneets equation for the evolution of the photon frequency distribution brought about by Compton scattering. The Lorentz invariant Boltzmann equation for electron-photon scattering…

宇宙学与河外天体物理 · 物理学 2015-06-03 Lowell S. Brown , Dean L. Preston

The repeated scattering of photons by thermal electrons at low temperatures is described by the Kompaneets equation and its generalized forms that include anisotropies and higher order temperature corrections. In this work, we use the boost…

宇宙学与河外天体物理 · 物理学 2026-03-26 Alex Hoey , Jacob Long , Jens Chluba

A kinetic equation for Compton scattering is given that differs from the Kompaneets equation in several significant ways. By using an inverse differential operator this equation allows treatment of problems for which the radiation field…

天体物理学 · 物理学 2009-11-07 George B. Rybicki

The frequency distribution of photons in frequency that results from single Compton scattering of monochromatic radiation on thermal electrons is derived in the mildly relativistic limit. Algebraic expressions are given for (1) the photon…

天体物理学 · 物理学 2009-10-31 S. Y. Sazonov , R. A. Sunyaev

We present a Monte Carlo collisional scheme that models single Compton scattering between leptons and photons in particle-in-cell codes. The numerical implementation of Compton scattering can deal with macro-particles of different weights…

计算物理 · 物理学 2020-10-28 F. Del Gaudio , T. Grismayer , R. A. Fonseca , L. O. Silva

Compton scattering by a locally plane parallel atmosphere is analyzed within the Kompaneets approximation. In contrast to almost all previous analytic calculations of inverse Compton scattering, we assume neither homogeneity nor isotropy of…

天体物理学 · 物理学 2009-10-31 Robert V. Wagoner , Alexander S. Silbergleit

Induced Compton scattering (ICS) is an interaction between intense electro-magnetic radiations and plasmas, where ICS transfers the energy from photons to plasmas. Although ICS is important for laser plasma interactions in laboratory…

高能天体物理现象 · 物理学 2015-07-01 Shuta J. Tanaka , Katsuaki Asano , Toshio Terasawa

Comptonization is the process in which photon spectrum changes due to multiple Compton scatterings in the electronic plasma. It plays an important role in the spectral formation of astrophysical X-ray and gamma-ray sources. There are…

计算物理 · 物理学 2009-10-30 Xin-Min Hua

An isotropic electromagnetic field in a plasma of thermalized electrons undergoes changes in energy as a result of Compton scattering and an Einstein-Hopf drag force on the electrons, eventually approaching a Bose-Einstein photon…

高能物理 - 唯象学 · 物理学 2021-10-04 Peter W. Milonni

Interactions between photons and electrons are ubiquitous in astrophysics. Photons can be down scattered (Compton scattering) or up scattered (inverse Compton scattering) by moving electrons. Inverse Compton scattering, in particular, is an…

高能天体物理现象 · 物理学 2023-04-05 Anderson C. M. Lai , Kenny C. Y. Ng

Compton scattering is the dominant opacity source in hot neutron stars, accretion disks around black holes and hot coronae. We collected here a set of numerical expressions of the Compton scattering redistribution functions for unpolarized…

高能天体物理现象 · 物理学 2019-01-03 J. Madej , A. Różańska , A. Majczyna , M. Należyty

Based on the Kompaneets approximation, we develop a robust methodology to calculate spectral redistribution via inelastic neutrino-nucleon scattering in the context of core-collapse supernova simulations. The resulting equations conserve…

高能天体物理现象 · 物理学 2021-08-26 Tianshu Wang , Adam Burrows

We consider the radiative transfer problem in a plane-parallel slab of thermal electrons in the presence of an overcritical magnetic field. Under such conditions, the magnetic field behaves as a birefringent medium for the propagating…

高能天体物理现象 · 物理学 2019-08-19 C. Ceccobello , R. Farinelli , L. Titarchuk

The relaxation of a photon bath to thermal equilibrium via Compton scattering with electrons is described in the Kompaneets equation (1956). The equation is mostly known from studies of astrophysical plasmas, for its convergence to the…

宇宙学与河外天体物理 · 物理学 2022-08-18 Guilherme Eduardo Freire Oliveira , Christian Maes , Kasper Meerts

In medical applications -- such as positron emission tomography (PET) -- $511$keV photons that experience Compton scattering are studied. We present a consistent framework based on error-correction channels to fully describe the quantum…

量子物理 · 物理学 2024-04-30 B. C. Hiesmayr , W. Krzemień , M. Bała

Comptonization is a very important phenomenon in astrophysics. Kompaneets equation describes up-Comptonization process in nonrelativistic astrophysics, while it fails for down-Comptonization Scattering which is the most important radiative…

高能天体物理现象 · 物理学 2015-09-02 Xu Zhang , Xurong Chen

The Compton scattering process plays significant roles in atomic and molecular physics, condensed matter physics, nuclear physics and material science. It could provide useful information on the electromagnetic interaction between light and…

其他凝聚态物理 · 物理学 2021-05-11 Chen-Kai Qiao , Jian-Wei Wei , Lin Chen
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