不稳定暗物质中逆康普顿过程的宇宙Gamma-ray
Cosmic Gamma-ray from Inverse Compton Process in Unstable Dark Matter Scenario
摘要：
受宇宙射线正电子通量中PAMELA异常的启发，我们假设宇宙射线正电子和电子的异常是由暗物质衰变产生的正电子和电子发射引起的，研究了不稳定暗物质中逆康普顿散射过程引起的宇宙γ射线.本文计算了银河系中的IC感应γ射线通量和从宇宙学距离计算的IC感应γ射线通量，表明两者都是有意义的。本文讨论了费米γ射线空间望远镜观测到的大质量超TeV的暗物质的可能性。
英文摘要：
Motivated by the PAMELA anomaly in the fluxes of cosmic-ray positron and electron, we study the cosmic gamma-ray induced by the inverse Compton (IC) scattering process in unstable dark matter scenario assuming that the anomaly is due to the positron and electron emission by the decay of dark matter. We calculate the fluxes of IC-induced gamma-ray produced in our Galaxy and that from cosmological distance, and show that both of them are significant. We discuss a possibility that large dark matter mass over TeV scale might be constrained by the gamma-ray observation by Fermi Gamma-ray Space Telescope.
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