2023-06-23 18:33:34
GUIYANG, June 23 (Xinhua) — The 500-meter-diameter single-dish radio telescope FAST, which has been dubbed the ‘FAST’, is a 500-meter-diameter single-dish radio telescope. The “Chinese Cosmic Eye” found a binary pulsar with an orbital period of 53.3 minutes, the shortest period ever discovered for a pulsar in a binary star system. Led by a team of scientists from the National Astronomical Observatory. Affiliated with the Chinese Academy of Sciences It was published in the journal Nature on Wednesday (June 21). These are neutron stars spinning at high speed. It originates from the exploding core in the interior of a dying massive star. through a supernova explosion Observing pulsars is an important mission of the FAST telescope. which can be used to confirm the existence of gravitational radiation Gravitational radiation and black holes, as well as answering other important physics questions, said Jiang Peng, chief engineer of FAST telescopes. It states that the paired pulsar, named PSR J1953+1844 (M71E) (PSR J1953+1844 (M71E)), is in the spider pulsar system with its angular velocity. biggest orbit And for the first time, an intermediate state in the evolution from a red-backed spider pulsar to a black widow pulsar has been discovered. This helps fill in the gaps in the theory of spider pulsar evolution. Astronomical observations reveal that some pulsars have satellite stars in their near orbits. by Han Jinlin Watchtower Researchers It is said that the orbital period of pulsars in evolution is relatively short. And the distance between the two stars is very close. This creates a great challenge for observation. But FAST’s quick response and detection potential This makes it possible to confirm the evolutionary path. The FAST telescope is located in a natural deep spherical basin in Pingtang County. Guizhou Province in southwestern China Known as the world’s fastest responding radio telescope. It was officially launched in January 2020 and officially opened to the world on March 31, 2021. in Guizhou Province, southwest China, on Feb. 13, 2023).
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