首次发现高能宇宙线新来源！“拉索”成果又上新

Core Insights - The LHAASO (Large High Altitude Air Shower Observatory) has made a significant discovery regarding microquasars, which are powerful particle accelerators formed by the interaction of black holes and companion stars, capable of accelerating cosmic rays to energies above the "knee" threshold, providing crucial observational evidence for the role of black holes in the origin of cosmic rays [1] Group 1: Cosmic Rays - Cosmic rays are charged particles from outer space, primarily composed of various atomic nuclei, and are considered messengers of cosmic events. The origin of high-energy cosmic rays remains a mystery [5] - There is a critical turning point in the energy spectrum of cosmic rays, around 30 trillion electron volts, where the number of cosmic rays sharply decreases, referred to as the "knee" [5] Group 2: Research Findings - The LHAASO has identified signals of ultra-high-energy gamma rays from five microquasars, indicating that these systems can accelerate particles to energies in the "knee" region of the cosmic ray spectrum [7] - This discovery suggests that microquasars serve as new sources of high-energy cosmic rays, surpassing the acceleration limits of supernova remnants [7] - The findings link the "knee" structure of cosmic rays to specific celestial bodies, namely black hole jet systems, thus opening new avenues for understanding extreme physical processes in the universe [7] Group 3: Scientific Impact - The LHAASO continues to contribute to scientific endeavors, expanding the boundaries of human knowledge and delivering globally impactful breakthroughs [8]