For the celestial black hole with extremely strong gravitational force in the universe, people often use "light can not escape" to describe it as terrible enough to swallow everything.
However, the latest research by a team of Chinese scientists through the observational data of China’s first space X-ray astronomical satellite "Hui Eye" (HXMT) found that a plasma stream commonly known as "corona" can escape the black hole, which will give people a strong gravitational attraction to the black hole. New understanding of the field.
On February 15, the reporter learned from the Institute of High Energy Physics, Chinese Academy of Sciences (Institute of High Energy Physics, Chinese Academy of Sciences) that the world-renowned academic journal "Nature Communications" published online the latest scientific research results of China's "Wise Eye" satellite on the same day-the team of scientists analyzed "Wise Eye" According to satellite observation data, the corona that escaped the strong gravitational field of the black hole was discovered in the black hole X-ray binary star "MAXI J1820+070", and the speed evolution of the corona was observed for the first time in the black hole binary star.
The study shows that the corona tends to shrink toward the black hole, and it also moves outward at a relativistic speed, and the smaller the scale of the corona, the greater the speed.
At the same time, this result also provides an important basis for studying the motion of the coronal in the process of black hole accretion.
The latest result of the paper is titled "The "Wisdom Eye" satellite discovered the outward moving corona in the black hole X-ray binary star MAXI J1820+070", jointly by researchers from Wuhan University, Institute of High Energy Energy, Chinese Academy of Sciences, National Astronomical Observatory of Chinese Academy of Sciences, Nanjing University, Tsinghua University and other researchers carry out.
The "Wisdom Eye" satellite project was proposed by the Institute of High Energy of the Chinese Academy of Sciences and took the lead in charge of satellite payloads, ground application systems and scientific research. Its successful launch and operation have given China an important place in the highly competitive high-energy astrophysics observation field.
Next, let us use a popular science video to understand how China's Hard X-ray Modulation Telescope (HXMT) satellite observes the universe.
(Reporter Sun Zifa video source: Institute of High Energy Physics, Chinese Academy of Sciences)
Editor in charge: [Yuechuan]