中国天眼在国际上首次揭示快速射电暴双星起源关键证据

Core Insights - Chinese scientists have captured a unique phenomenon of a repeating fast radio burst (FRB) using the FAST telescope, providing the strongest observational evidence to date for the hypothesis that FRBs originate from binary star systems [1][3] Group 1: Observational Evidence - The research team from the Purple Mountain Observatory monitored the repeating FRB 20220529 for over two years, utilizing the high sensitivity of the FAST telescope to capture detailed bursts [1] - In December 2023, the team observed a groundbreaking phenomenon where the Faraday rotation measure of the source surged to approximately 20 times its previous levels before monotonically decreasing back to normal fluctuations within two weeks [1] Group 2: Theoretical Implications - The sudden and reversible changes in the magnetic environment are unprecedented in the history of FRB research, suggesting that a cloud of magnetized charged particles briefly passed through the line of sight [1] - The binary star system involved has a star that, similar to the Sun, continuously emits solar wind and periodically ejects magnetized plasma, which alters the Faraday rotation of the radio signals when it passes through the observation line [2]