爱因斯坦理论
Search documents
人类拍摄到的第一个黑洞,有了“出乎意料的变化”
Guan Cha Zhe Wang· 2025-09-18 13:38
Core Insights - The Event Horizon Telescope (EHT) collaboration released new images of the supermassive black hole M87*, revealing dynamic changes in polarization patterns and the first signs of extended radiation connecting the black hole's ring structure to the base of its jets [1][3]. Group 1: Observational Findings - M87* is located approximately 55 million light-years from Earth and has a mass over 6 billion times that of the Sun [1]. - The EHT collaboration conducted observations in 2017, 2018, and 2021, comparing the results to identify changes in polarization direction [1][3]. - Notable changes in polarization direction were observed from 2017 to 2021, with a complete reversal of the magnetic field direction by 2021 [1][3]. Group 2: Scientific Implications - The observed polarization changes may result from a combination of internal magnetic structures and external factors, indicating a turbulent and evolving environment around the black hole [3]. - The stability of the black hole's shadow size over the years supports Einstein's predictions, while the significant changes in polarization suggest a dynamic and complex magnetized plasma near the event horizon [3][4]. - The EHT's enhanced observational capabilities in 2021, including new telescopes, allowed for the first determination of the radiation direction at the base of M87*'s relativistic jets [3]. Group 3: Broader Context - Jets like those from M87 play a crucial role in galaxy evolution by regulating star formation and distributing energy on a large scale, providing a "natural laboratory" for studying cosmic phenomena [4].