What results has China Tianyan FAST achieved since the national acceptance this year?

The universe is immense, and those who look up to it can always feel their own dusty insignificance. However, mankind has never stopped exploring the universe, and our country has great determination. China's Sky Eye is the world's largest single-aperture radio telescope, with an aperture of an astonishing 500 meters, that is, the size of 20 football fields.

Because of its completion, the original world No. 1 Arecibo also retreated to second place. It was proposed and built by Mr. Nan Rendong, a famous scientist in China. The completion of Tianyan has great benefits for our country.

Especially since the national acceptance, it has achieved a series of impressive results in different fields. <>

1. The field of science. The completion of FAST Tianyan has demonstrated to the world that China's increasingly powerful scientific and technological soft power and comprehensive national strength. In particular, it has achieved a series of achievements, such as the recent discovery that the repeated explosion radiation of fast radio bursts has very rich polarization characteristics, which is the first time in the world.

It has been found so farMore than 240 pulsars, which has enabled scientists to study the miraculous properties of pulsars, and thus promoted the pace of human beings to unravel the mystery of the universe. Recently, there have been many fruitful results, and scientists have rushed to apply for the right to observe and use the eye of the sky, and have published dozens of important articles, once again demonstrating China's scientific and technological strength to the world. As a result, China's scientific research team no longer asks for observation data from other countries, but has since begun to study its own observation data, and its scientific research strength has risen to the first echelon.

Second, the economic field.

As the saying goes, cutting-edge fields lead to the development of basic fields. For example, every breakthrough in cutting-edge scientific and technological equipment such as manned spacecraft and extraterrestrial probes will be due to the new materials and technologies they have developedPromote the development of social productive forces, which greatly shortens the socially necessary labor time in all walks of life. This is also the case with China's fast Tianyan, because its successive construction has led to the development of a series of industries and promoted the growth rate of the economy.

In addition, what other proud achievements do you know?

Since the acceptance of China's Tianyan has achieved very good results, more than 240 pulsars have been discovered, and many scientists have published their own ** through Tianyan observation, which has further improved China's scientific and technological strength.

1. With the help of FAST's super performance, scientists have verified the connection between fast radio bursts and magnetars, and also detected a repeated explosion produced by a fast radio burst, which is the first time in the international academic community.

2. The equipment runs smoothly and helps scientists discover a total of 240 new pulsars.

China's Tianyan seems to have discovered more than 240 pulsars, so that China's scientific research team does not need to seek pulsar observation data from other countries, and has since begun to study their own observation data, which has made China's scientific research strength rise to the first echelon, and then has also made important breakthroughs in the research of fast radio bursts.

Since its delivery to this year's national acceptance, China Sky Eye has discovered 204 asteroids, making it the world's largest radio telescope.

It can better understand the universe, expand the horizons of human beings, and allow human beings to better understand the universe and make better observations.

The significance and function lies in the all-round monitoring of space, and the effect is also very positive, and it will also bring great changes to the follow-up research and space exploration.

It was installed in Guizhou Province. Because from the point of view of this kind of equipment, the environmental requirements are very high, and after careful consideration, it was finally settled in Guizhou Province. Tianyan himself design has extremely strict requirements for accuracy, and the degree of requirements is very fine, so how to overcome the terrain and temperature difference, this welfare condition is a very big problem of the Tianyan project, after the project team constantly changed the plan to think of countermeasures, and finally put forward a plan, and this solution can solve these big problems, and in the design of the way is also conducive to the telescope to adjust the angle, and then in order to pass through the uniform temperature, The calculation and measurement process alone took more than four months.

Therefore, China Tianyan project has put in a lot of hard work behind it.

Because there is a limit in the scientific community, this limit is called the 100-meter limit, because from the perspective of the sky-shooting eye, as long as the aperture of the radio telescope exceeds 100 meters, it is very difficult to achieve its high precision, because this is also a world problem, so in order to ensure that the sky eye has high precision. In order to ensure the accuracy of his cable net, the strict error can not exceed one millimeter during construction, which is a very demanding requirement, because one millimeter is only a little less than a little bit for the steel cable, which is difficult to grasp, but this time it is strictly implemented and grasped, because this time it is necessary to achieve a very high accuracy.

Because high accuracy also means high sensitivity, and compared with the American radio telescope, its effective contact area is at least doubled, and the sensitivity is greatly greater than the latter, and the reflective surface of the eye can also adjust the shape in real time. This is the only telescope in the world that can actively change its position.

The original design concept was derived from the American Arecibo telescope, but compared with the American telescope, the active reflector system is the biggest innovation of our country's Sky Eye. This also greatly improves the efficiency of observation. Because the American telescope is fixed, they only scan the sky in a 20-degree band, but the Chinese Sky Eye, an active reflective surface radio telescope, has a wider range of observation and a wider angle.

China's Tianyan telescope, some radio telescopes in other countries, the comprehensive performance has been improved by more than 10 times, this is China's technology, this is also made in China, and it is a very remarkable project in our country. With the completion of this radio telescope, we will be able to better listen to the sounds coming from the deepest depths and effectively uncover the secrets of the universe.

China's Tianyan FAST is installed in Guizhou Province, behind the Tianyan, there are a lot of stories, China has made a lot of efforts in order to develop the Tianyan, and has also poured a lot of scientists' efforts.

In Guizhou Province, Tianyan is located in the deep mountains, the rainy season is long, mosquitoes are flying, and the living conditions are poor.

China Sky Eye is installed in Guizhou Province. The story behind China's Sky Eye is that the chief designer died without waiting for the moment of the opening of Sky Eye.

In 2016, after the completion of China's Tianyan copy, our country replaced the United States and became the world's largest and farthest telescope, FAST is located in the karst depression called Dawotai in Pingtang County, Guizhou Province, based on the independent innovation of three all Chinese intellectual property rights - site selection method, cable net active reflective surface, flexible cable combined with the feed support of parallel robots, FAST has broken through the limit of radio telescope engineering and built into the world's largest single-aperture radio telescope. Its receiving area is equivalent to the size of 30 football fields. It is a telescope with an aperture of 500 meters, also known as FAST.

According to reports, on October 10, the National Astronomical Observatories of the Chinese Academy of Sciences held a press conference, announcing that the world's largest single-aperture radio telescope, the 500-meter aperture spherical radio telescope, has achieved the first batch of results, and the radio telescope has discovered pulsars for the first time and detected dozens of high-quality pulsar candidates, two of which have passed international certification.

According to the report, pulsars are essentially neutron stars, with extreme physical properties that cannot be achieved in terrestrial laboratories, making them ideal astrophysics laboratories to study them, and there is hope for answers to many major physics questions. For example, pulsars have extremely stable rotation periods, and accurate clock signals provide an ideal tool for major scientific and technological applications such as gravitational wave detection and spacecraft navigation.

Experts said that the search and discovery of radio pulsars is the core scientific goal of FAST, there are a large number of pulsars in the Milky Way, but because of their weak signals, they are easily overwhelmed by artificial electromagnetic interference, and only a small part of them have been observed so far, and the FAST telescope with extremely high sensitivity is the ideal equipment for discovering pulsars.

According to the plan, in the next two years, FAST will continue to be debugged, in order to meet the design indicators, pass the national acceptance, and realize the opening to scholars at home and abroad. At the same time, we will further verify and optimize the scientific observation mode, continue to promote astronomical discoveries, and strive to build FAST into a world-class telescope equipment as soon as possible.