Whether it is the lighter Sgr A* or the heavier M87, black holes of different masses all exhibit a ring-like structure, and their characteristics are extremely consistent with the description of the Kerr metric (a rotating black hole) in general relativity. . For example, as mentioned above, the Sgr A* black hole "looks" about 52 μas. The angular diameter of the halo in the image is 51.8 ± 2.3 μas, which is very close to the theoretical value, once again verifying the effectiveness of general relativity in describing gravity. Four: What is your relationship with the world? Confirmation of general relativity is indeed not like Yellen's remarks, which will suddenly and significantly affect the economic market; it may not be like a work of art that touches people's hearts for a long time. Many people haven't even heard of general relativity, yet it applies to the global positioning systems we use every day.
With the advancement of EHT and the development of other technologies, the future will surely allow everyone to see the true appearance of black holes. Clearer photos will also help scientists to further verify the general theory of relativity, or they can extend number list the theory to find the ultimate theory that describes the universe and promote the development of human society. Notes: The distance that light travels in one year is about 9.46 trillion kilometers. M☉ is one solar mass, about 2×1⁰³⁰ kilograms. Reference papers: First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way First Sagittarius
A Event Horizon Telescope Results. III. Imaging of the Galactic Center Supermassive Black Hole First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring [Join Key Comments Network Member] Every day, wonderful and good articles will be delivered directly to your mailbox, and you will enjoy exclusive weekly editorial selections, current affairs selections, art and literature weekly and other special electronic newspapers. You can also leave a message to discuss the content of the article with authors, reporters, and editors. Click to join for free now!