拉索发布新成果，发现黑洞在宇宙线起源中的作用

Core Insights - The latest findings from the High Altitude Cosmic Ray Observatory (LHAASO) indicate that cosmic ray protons in the PeV energy range primarily originate from microquasars, providing significant observational evidence for understanding the role of black holes in the origin of cosmic rays [1][2] Group 1: Cosmic Rays and Their Sources - Cosmic rays are high-energy particle streams from space that carry information about their astrophysical environments [1] - A critical turning point in the energy distribution of cosmic rays occurs around 3 PeV, where the number of cosmic rays sharply decreases, referred to as the "knee" [1] - Previous beliefs attributed cosmic rays to supernova remnants, but it has been found that they struggle to accelerate particles to energies above the "knee" [1] Group 2: Role of Microquasars - Microquasars, formed when black holes in binary systems accrete material from companion stars, are identified as significant PeV particle accelerators [2] - LHAASO has systematically detected ultra-high-energy gamma rays from five microquasars, highlighting their importance in the Milky Way [2] Group 3: LHAASO's Contributions - The High Altitude Cosmic Ray Observatory is designed, constructed, and operated by Chinese scientists, achieving globally impactful breakthroughs in gamma-ray astronomy and cosmic ray measurements [2] - The recent discoveries enhance the understanding of black holes' contributions to the origin of cosmic rays [2]