Astronomical experts discovered 191 new banking background stars

The research team of the Institute of Astronomy and Celestial Physics of Peking University has recently published a new achievement in the international authoritative astronomical journal "Added Magazine of Celestial Physics". Researchers found and used 5 domestic and foreign optical telescopes to observe and confirmed 204 silver -pair background stars, of which 191 was the first discovery.

The Yinkou surface is a plate -shaped plane formed by most stars in the galaxy. Star -like body is a high -gloss celestial body that looks similar to a star but is actually extremely distant. The large quality black hole in the center releases huge energy by accumulating the surrounding gas substances, so it is essential for the formation and evolution of the large -scale black hole.

It is reported that in the past few decades, although the stars have made great progress, there are still insufficient coverage in the coverage of the sky. Large -scale stars are mainly concerned about the Gaoyin Weitian District of Beitian. Usually do not cover the Yilitan Noodle District, coupled with the severe dust, redization and dense crosses in the direction of the silver road, making it to find the background of the silver lane surface. Stars are very difficult. These factors lead to fewer samples of the observed silver field background background, so it is difficult to accurately estimate the error of the grocery surface measurement system.

High -precision celestial measurement data is very important for studying the silver surface celestial body. To this end, the team of Professor Wu Xuebing and Dr. Fu Yuming of the Institute of Astronomy and Celestial Physics of Peking University and Dr. Fu Yuming have built a method of selecting a silver -based background sources based on migration learning. It was determined that more than 160,000 silver road background background stars candidates were determined.

Since 2018, the team has cooperated with domestic and foreign research teams to use five astronomical telescopes in China, the United States, and Australia to carry out spectral observation evidence for the candidates of the grocery background stars.

Professor Wu Xuebing introduced that the larger silver -faced background star samples help to establish a better celestial measurement reference rack, improve the accuracy of the measurement of galaxy celestial body, and better understand the structure and sports nature of the groin. "The results of this research verify the effectiveness of our method of selecting the source method of the silver sideline background background, and expanded the systemic searches of the star body to the intensive studio area in the direction of the silver road. The star patrol laid a solid foundation, "he said.

The team expects that in the next two years, it will recognize about 200 background stars located within 5 degrees of Yinwei, and recognize the background stars within 20 degrees of silver latitudes within 20 degrees of silver latitude through the spectrum of the Guo Shoujing telescope. In addition, research on the application of celestial body measurement of the gillar face background is also underway.

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