The research team composed of scientists from Canada, the United Kingdom, Russia, the Netherlands, the United States and other countries led by the Max Planck Institute of Radio Astronomy in Germany, with the help of the Very Large Telescope (VLT), William Herschel Telescope (WHT), Green Class of the European Southern Observatory The Gram Radio Telescope (GBT) discovered and studied a binary system called PSR J0348 + 0432. The binary system consists of a small and extremely heavy radio pulsar that rotates 25 revolutions per second and a white dwarf that orbits the pulsar once every two and a half hours, separated by 830,000 kilometers. The pulsar is the remnant of a supernova explosion, 20 kilometers in diameter, but twice the mass of the sun, its core density is as high as 1 billion tons per cubic centimeter, the surface gravity is 300 billion times that of Earth, and its companion star The mass of white dwarfs is much smaller. Einstein's general theory of relativity about the bending of time and space has withstood many tests, but it cannot fully explain all the processes in the universe. Therefore, physicists have also put forward some different views. In 1974, Russell Hulls and Joseph Taylor of the United States discovered the first radio pulse binary star PSR 1913 + 16. The existence of gravitational waves can be detected by accurately measuring the change in the orbital period of the radio-pulse binary star, which validates the general theory of relativity, and the two won the 1993 Nobel Prize in Physics. The multi-national research team found that PSR J0348 + 0432's rotation period slows down by 8 millionths of a second per year, which directly proves the existence of gravitational waves again, which is what the general theory of relativity predicts. Compared with other pulsars that have made accurate proofs of the general theory of relativity to date, the PSR J0348 + 0432 binary star system is indeed an unconstructable, unusual research object on Earth, which integrates short periods, higher pulsar quality, and rotation The speed is slow and there are many characteristics such as a strong magnetic field. At present, through the use of a new type of signal receiving system, scientists are carrying out further research to improve the accuracy of the results of the pulsar research so far. Stainless Steel Hand Trolley,Steel Food Cart,Steel Dining Trolley,Steel Service Cart Jiangmen T2grand Stainless Steel Kitchenware Factory , https://www.yapamit.com
Multinational team of scientists validates general relativity again