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Omnidirectional induced compton scattering by relativistic electrons

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Abstract

Quasars, pulsars and other cosmic sources of intense radiation are known to have large brightness temperature (kT b≫mc 2) and relativistic electron density values. In this case the induced Compton scattering by relativistic electrons should be considered. The probability of scattering with decreasing radiation frequency is derived for isotropic radiation scattering. When induced scattering takes place, the relativistic electron obtains its energy by transforming high-frequency quanta into the low-frequency ones. In the most intensive sources electrons would receive energiesE≃mc 2 ××(kT b/mc 2)1/7 due to the heating rate proportional toE −5 with the cooling rate proportional toE 2. Considerable distortion of the quasar spectrum is possible for reasonably large values of relativistic electron density (N≳106cm−3) notwithstanding that the heating is negligible. In pulsars relativistic electron heating and spectrum distortion appear to depend more on the induced Compton scattering.

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Authors and Affiliations

  1. Institute of Space Research, U.S.S.R. Academy of Science, Moscow, USSR

    V. M. Charugin & Yu. P. Ochelkov

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  1. V. M. Charugin
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  2. Yu. P. Ochelkov
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Charugin, V.M., Ochelkov, Y.P. Omnidirectional induced compton scattering by relativistic electrons. Astrophys Space Sci 26, 337–344 (1974). https://doi.org/10.1007/BF00645616

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  • DOI: https://doi.org/10.1007/BF00645616

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