Momentum and energy conservation yield the energy and scattered angle of the electron in the normal effect. This effect should be taken into account when calculating the Galactic emission for extragalactic background estimates. This process, known as inverse Compton (IC) scattering, is important in the jets of active galactic nuclei and in clusters of galaxies. We derive formulas for this process and show that the anisotropy of the interstellar radiation field has a significant effect on the intensity and angular distribution of the Galactic diffuse gamma rays, which can increase the high-latitude Galactic gamma-ray flux up to 40%. One example of inverse Compton scattering that I’ve already men-tioned is the Sunyaev-Zel’dovich eect, in which Cosmic Microwave Back-ground (CMB) photons gain energy as they scatter from free electrons in the intracluster gas of rich galaxy clusters. the diffuse emission at high Galactic latitudes. electron (Xi < ii for head-on collisions) is known as inverse Compton scat-tering. This is especially evident when considering inverse Compton scattering by electrons in the halo, i.e. An observer in the Galactic plane thus sees mostly head-on scatterings even if the distribution of the cosmic-ray electrons is isotropic. The X-ray flux, thus the number of emitted X-rays per second, for a head-on inverse Compton scattering of electron bunches and laser pulses can be calculated as 12, 32 (2) F tot T N L N e f rep 2 ( e 2 + l 2), where T is the Thomson cross-section, N e is the number of electrons per bunch, N L the number of photons per laser. The angles and frequencies of the photon as seen by the moving electron are different than what is measured in the lab frame. The standard Compton equations are valid only from the electron’s rest frame. To find the final energy of the photon, we must perform a couple Lorentz transformations. The background radiation field of the Galaxy is highly anisotropic since it is dominated by the radiation from the Galactic plane. Mathematical Derivation of Inverse Compton Scattering. Moskalenko and 2 other authors Download PDF Abstract: The inverse Compton scattering of interstellar photons off cosmic-ray electrons seems to play a more important role in the generation of diffuse emission from the Galaxy than thought before. Inverse Compton scattering is the scattering of low energy photons to high energies by relativistic electrons. Download a PDF of the paper titled Anisotropic inverse Compton scattering in the Galaxy, by I.
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