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Abstract <p>eRosita bubbles could be created by shocks propagating in the Galactic halo. Cosmic ray acceleration by these shocks is investigated. It is shown that protons can be accelerated up to PeV energies and their amount is enough to explain observations. The origin of higher energy particles related to the past activity of the Galactic center is also discussed.</p>

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Cosmic Ray Acceleration by Shocks in Galactic Halo

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • V. N. Zirakashvili,
  • V. S. Ptuskin,
  • S. I. Rogovaya

摘要

Abstract

eRosita bubbles could be created by shocks propagating in the Galactic halo. Cosmic ray acceleration by these shocks is investigated. It is shown that protons can be accelerated up to PeV energies and their amount is enough to explain observations. The origin of higher energy particles related to the past activity of the Galactic center is also discussed.