一个由费米在Cygnus超级泡中检测到的新加速的宇宙射线子
相关实验视频
Updated: May 27, 2026

11:21
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
M Ackermann1, M Ajello, A Allafort
1W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305, USA.
概括
科学家使用费米大面积望远镜 (LAT) 观测到年轻的宇宙射线. 这些高能粒子淹没了Cygnus X区域的空洞,为它们在加入更广的星系之前的早期旅程提供了洞察力.
科学领域:
- 天体物理学 天体物理学
- 宇宙射线物理学 宇宙射线物理学
- 高能天文学 高能天文学
背景情况:
- 银河系宇宙射线的起源在天体物理学中仍然是一个长期存在的.
- 虽然超新星冲击波被怀疑是加速器,但宇宙射线从这些来源的逃逸和演变是不太了解的.
- 马射线天文学提供了一种方法,可以通过星际气体和辐射场追踪宇宙射线的传播.
研究的目的:
- 为了研究早期生命和宇宙射线在恒星形成区域的分布.
- 利用马射线观测研究宇宙射线逃逸和大质量恒星附近的进化.
- 为提供一个超级泡环境中宇宙射线行为的案例研究.
主要方法:
- 使用费米大面积望远镜 (LAT) 观测Cygnus X恒星形成区域.
- 分析1到100千兆电子伏的马射线图像,绘制宇宙射线分布图.
- 玛射线发射与恒星风和电离前线雕刻的结构的相关性.
主要成果:
- 在Cygnus X.中发现了一个50帕塞克宽的新加速宇宙射线.
- 证据表明,这些宇宙射线填充了由年轻恒星团的能量流出所造成的空洞.
- 用马射线作为探测器来理解宇宙射线扩散和密集环境中的相互作用的演示.
结论:
- X 区域拥有大量年轻的,新加速的宇宙射线.
- 这些宇宙射线被观察到居住在由大质量恒星活动塑造的区域.
- 这项研究提供了一个独特的窗口,可以看到宇宙射线在散布到银河系一般人口之前的早期进化.
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