A Chinese research team using the Five-hundred-metre Aperture Spherical Radio Telescope (FAST) has for the first time detected radio bursts lasting only milliseconds from starspot regions on distant stars.
According to
Global Times, a partner of TV BRICS, the discovery offers a new way to study small-scale magnetic fields and may help explain the origins of magnetic activity in stars beyond our solar system.
The researchers, led by Professor Tian Hui from the School of Earth and Space Sciences at Peking University, highlighted that the study bridges a long-standing gap in understanding the behaviour of magnetic fields on other stars and provides valuable insights into the causes of coronal eruptions and space weather phenomena.
The breakthrough was made possible by FAST’s sensitivity and ultra-high temporal and spectral resolution. Earlier stellar radio observations recorded signals on timescales of minutes or hours, but FAST can detect changes at the sub-millisecond level, allowing astronomers to capture fleeting fluctuations in stellar radio emissions.
Building on this success, the researchers plan to use FAST to study young solar-type stars, brown dwarfs and the magnetic interactions between stars and their planets, deepening understanding of the forces that shape stellar and planetary evolution.
Photo: liujunrong /
iStock
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