admin In a vast space theater, Fast Radio Burst (FRB) delivers a spectacular performance. Known for their brilliant radio-band millisecond bursts, these mesmerizing phenomena are some of the most brilliant spectacles the universe has to offer. But its mysterious origins continue to pose intriguing mysteries for both astronomers and physicists, making Fed research an intriguing frontier in our quest to understand the universe.
Fast Radio Burst (FRB) is the brightest millisecond long radio band burst in the universe. But its mysterious origins have long baffled astronomers and physicists. The Shared Radio Astronomy FAST Survey (CRAFTS) as part of the 500-meter Spherical Radio Telescope (FAST) project has revealed the first iteration FRB, designated FRB 20190520B. This finding provides a promising clue about the mysterious origin of the FRB signal.
FRB Signals: Multinational Investigation Unearths Groundbreaking Findings
Led by an international team, Dr. LI Di of the National Astronomical Observatory of the Chinese Academy of Sciences (NAOC) conducted a detailed study of FRB 20190520B. The research team used the Parkes Telescope in Australia and the Green Bank Telescope (GBT) in the United States to discover unusual field inversions around this perpetually active source.
The results of this comprehensive study across three continents were published May 11 in the journal Science.
A Unique Fast Radio Burst Piques Scientific Interest
What makes FRB 20190520B different from other FRBs is its consistency. Each observation produces a flare that can be detected by one or more telescopes. This reliability makes it an excellent candidate for large-scale multiband tracking studies.
Dr DAI Shi of the University of Western Sydney, project leader for FRB 20190520B in Parkes, said: “The Parkes telescope detected a total of 113 bursts from FRB 20190520B, the largest number of fast radio bursts detected at Parkes to date. It’s more than the total number,” he said. This highlights the importance of his Fed 20190520B.
Fed Signals Solving the Mysteries of the Universe
Dr. FENG Yi, former NAOC graduate student. Zhejiang Institute alumnus and Ms. Anna Thomas of West Virginia University (WVU) performed the analysis by combining GBT and Parkes data. They determined the polarization properties and found dramatic changes in the Faraday rotation measurement (RM), an important index of magnetic field and electron density.
“The integral of magnetic field and electron density can be approximated as RM. Any number of factors can lead to changes in RM. A reversal must bring about big changes,” he explained. LI Di, corresponding author of this study.
Space Explosion Reconnaissance
The observed reversal may have resulted from propagation through a chaotic magnetized plasma screen between 10-5 and 100 parsecs from the Fed source. “After repeated high-speed radio bursts, the turbulent component of the magnetic field can become chaotic like a ball of yarn,” said study co-author Yang Yuanpei, a professor at Yunnan University. In chaotic environments, the signal passes through a companion star halo, such as a black hole or a windy giant star. Understanding these dramatic changes in the magnetized environment around the FRB is an important step towards understanding the origin of these cosmic explosions.
