与黑洞喷射系统相关的超高能马射线辐射
Zhen Cao1,2,3, Felix Aharonian3,4,5,6, Yun-Xiang Bai1,3
1State Key Laboratory of Particle Astrophysics & Experimental Physics Division & Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
National science review
|December 31, 2025
概括
天文观测显示,积聚的黑洞,称为微量子星,加速粒子到极高的能量. 这项研究检测了微类星体的超高能马射线,这表明它们对宇宙射线有很大的贡献.
科学领域:
- 天体物理学 天体物理学
- 高能天体物理学 高能天体物理学
- 粒子物理学的粒子物理学.
背景情况:
- 黑洞 (BHs) 是迷人的宇宙物体,通过积聚流发射辐射.
- 恒星质量BH通过积聚物质形成微量子星,在广泛的能量频谱中产生非热辐射.
- 以前的观测表明微量子星中的相对论粒子加速.
研究的目的:
- 为了检测微量子星的超高能 (UHE) 马射线辐射.
- 为了研究黑洞系统增长中的粒子加速机制.
- 评估微量子星对银河系宇宙射线的贡献.
主要方法:
- 利用大型高空空淋天文台 (LHAASO) 进行马射线探测.
- 分析了微类星体的光谱数据,包括SS 433,V4641 Sgr,GRS 1915+105,MAXI J1820+070和天X-1.
- 研究了UHE发射与周围物质的空间巧合.
主要成果:
- 检测到来自四个微量子星的UHE马射线光谱,范围延伸到TeV能量.
- 从Cygnus X-1观测到一个频谱接近100TeV.
- 发现了SS 433的UHE辐射和V4641Sgr高达800TeV的延长源的哈德龙源的证据.
结论:
- 积聚的黑洞 (微量子星) 是高效的粒子加速器,可以达到1 PeV.
- 微夸星是银河系宇宙射线流的重要贡献者,特别是在"膝盖"区域.
- 检测UHE马射线为高能宇宙射线的来源和加速机制提供了关键的见解.
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