2020-07-18

Yunnan Observatory discovered a rare astronomical phenomenon, the phenomenon of”Luoxi flap” appeared in the universe, which is of great significance

By yqqlm yqqlm

There are five observatories under the jurisdiction of the Chinese Academy of Sciences, including the Yunnan Observatory, the largest astronomical observation base in the south, which is located in Kunming, the capital of Yunnan, China. In 1972, the Chinese Academy of Sciences Yunnan Observatory was formally established, which was the first place to enter the knowledge of the Chinese Academy of Sciences. The Innovative Engineering Research Institute has provided China with a lot of help in this field.

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China found a pulsating eclipse just after the rapid exchange of substances According to a report in Science and Technology Daily, the Yunnan Observatory of China has made great contributions to our country. According to a report from the Science and Technology Daily of the Yunnan Astronomical Observatory of the Chinese Academy of Sciences, Chinese researchers have previously proven a”oEA pulsation type”, which has just undergone a rapid mass exchange process through astronomical seismology (stellar vibration analysis). Spectrum to understand the internal structure of stars). Double Star System”.

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This finding can be said to be Physics has made a significant contribution because it is of great significance for us to perfect the theory of structural evolution.

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What is a”pulsatile food double star”? According to public information, the eclipse is a binary star system in which two stars will orbit each other, and at the same time, it will make the luminosity periodic Changes.

The”oEA pulsating eclipse binary system” is the only existence in the eclipse system, usually referring to the Algol type binary system. It contains the deita type pulsating variable stars in the constellation. The reason is unique. It is because the evolution of the binary star will cause material exchange and mass reversal.

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According to the disclosure of the researchers, this research was led by Academician Han Zhanwen, and after a large-scale exchange, the Algol type Double research goal was a star system numbered KIC 10736223.

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After analysis, it has a lunar eclipse phenomenon, which is an important feature of the pulsed eclipse binary system. In addition, In further research, Academician Han Zhanwen and his team found that the lower mass companion stars in this eclipse binary system are full of”star petals” (companion stars usually refer to binary systems with smaller mass and volume. stars).

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The researchers explained that the appearance of the”large lobe” phenomenon means The material from one star will flow to another star, and this process is also a rapid material exchange process. At present, researchers have discovered the”Roche leaf” phenomenon on the companion star, which means that the companion star is flowing its material to another star. Main star.

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To confirm that this guess is correct, study The personnel used”seismology” to analyze and found that the main star in KIC 10736223 has not yet evolved. The data obtained through model experiments show that the pulsating main star should be between 9.46 million years and 11.65 million years old. When the volume reverses, its age should be between 2.67 million and 3.14 million years. In this series of certifications, the researchers confirmed that KIC 10736223 is an Algol-type double-star system that has undergone a rapid phase of mass exchange. It is reported that the research results have been published in the American Astrophysics magazine.

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What does this study mean for our country? From the current point of view, whether it is China or the world, how the”fast material exchange” process affects the internal structure and evolution of the binary star has not been resolved, only staying in the discussion stage of the theoretical model, there is still a long way to go in this regard In this case, we discovered the KIC 10736223 Algol type double star system, which is a new breakthrough.

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If we can continue to discover this type of bimonthly Eclipse system, then it will be very helpful for us to understand the evolution of the stellar structure.

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According to the data, the director of the Chinese Academy of Sciences Han Zhanwen presided over the study , The expert is mainly engaged in binary star evolution and large sample star evolution research. In the field, Academician Han Zhanwen gave many important research data. In 2012, he served as the director of the Yunnan Observatory and was elected as an academician of the Chinese Academy of Sciences in November 2017. Therefore, under his leadership, I believe that we have learned that the process of stellar structure evolution will be more and more smoother