The impact of the stellar wind on the non-thermal processes in gamma-ray binaries
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May 01, 2024
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Abstract
This study investigates the dynamics and emission of rotation-powered gamma-ray binaries, which are characterized by the synergy between an energetic pulsar and a massive star. Utilizing a semi-analytical approach, we characterize the dynamics of the contact discontinuity and Coriolis shock resulting from the interaction between stellar winds and the pulsar wind. The model successfully reproduces the observed behavior of LS 5039 in X-rays and TeV gamma rays, clarifies the contribution of the two shock regions in the high-energy emission of gamma-ray binaries, and confirms the need for refined modeling to address the limitations of existing models in matching the $10-30$ MeV and $0.1-10$ GeV data.
DOI: https://doi.org/10.22323/1.461.0069
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.