Chinese Astronomers Discover Rare Compact Binary System of Pulsar, Helium Star

Chinese Astronomers Discover Rare Compact Binary System of Pulsar, Helium Star

Chinese astronomers have discovered a rare compact binary system consisting of a millisecond pulsar and a companion helium star formed by common envelope evolution. This sheds light for future research on stellar evolution theory.

The research, conducted by a team led by professor Han Jinlin from the National Astronomical Observatories of the Chinese Academy of Sciences using China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST), was published on Science online on Thursday, May 22, 2025: 
https://www.science.org/doi/10.1126/science.ado0769

FAST is the world's largest radio telescope. It is located in a naturally deep and round karst depression in China's southwestern province of Guizhou.

Learn more about FAST in China: https://fast.bao.ac.cn

Video Credit: CCTV
Duration: 1 minute, 40 seconds
Release Date: May 24, 2025

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