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This chapter introduces the second study of this thesis on the feedback of electrostatic beam-plasma instability on blazar-induced pair beams. The numerical simulations in this chapter reveal that angular broadening is the dominant feedback of the instability, reducing instability growth and limiting its energy transfer. Continuous pair production results in a steady-state wave spectrum, causing persistent beam scattering and delaying secondary gamma-ray emission by approximately 10 years.

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Fokker-Planck Diffusion Simulation of the Instability Feedback

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  • 发表日期：

    2025年

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  • Mahmoud S. A. Alawashra

摘要

This chapter introduces the second study of this thesis on the feedback of electrostatic beam-plasma instability on blazar-induced pair beams. The numerical simulations in this chapter reveal that angular broadening is the dominant feedback of the instability, reducing instability growth and limiting its energy transfer. Continuous pair production results in a steady-state wave spectrum, causing persistent beam scattering and delaying secondary gamma-ray emission by approximately 10 years.