Not only is this beautiful, it is also considered the most accurate and accurate picture ever.
Remember in April 2019, the world and the scientific community in particular had to be so excited and shocked when the EHT project (Event Horizon Telescope) released the first picture. in the history of cosmic black holes.
A publication of the century, considered one of the most important events in astronomical history. However, due to technological limitations, the image is of low quality, blurry and unclear.
The first photo of the black hole M87
That’s right, taking pictures of black holes – things that can absorb everything including light is certainly not easy.
But technology will develop, sooner or later, the clearest pictures of black holes will be born. NASA, in the meantime, decided to make a picture that mimics what is likely to be the image of the future black hole.
Reportedly, this simulation image was made by NASA for Black Hole Week magazine. And it is so beautiful that the internet astronomy fan community has shed tears.
How to simulate a black hole?
April’s image published by NASA is about a supermassive black hole. According to current human knowledge, most galaxies in the universe have a supermassive black hole at the center, but why they are there is still a mystery. What came before, the black hole or the galaxy? Nobody knows.
What we know about black holes so far, is that they are massive, with millions, even billions of times the mass of our solar system. They can control the formation of a star. And when they wake up and begin to swallow everything, they become one of the brightest objects in the universe.
In fact, there have been images that mimic black holes in the past, such as the version that first appeared in the 1960s by the IBM 7040 computer, or hand-painted by astronomer Jean-Pierre Luminet in 1978. … All of which is quite similar to a NASA simulation.
In the simulations, we see a black circle in the center. It is called the “event horizon” – the boundary before a material is pulled away by a black hole and cannot return to it because of the intense gravity of the black hole.
Drawings by Jean-Pierre Luminet (1978)
From the center of the black hole, there is a rotating ring of material around. This mass of matter is very large, capable of emitting radiation through friction, enough for us to receive signals by a periscope. It is also a way for people to get the first picture of the M87 black hole in April.
Around the event horizon area is a ring of glowing photons, emanating from the accretion disk region behind the black hole. But because the black hole has too strong gravitational force, even the space-time area outside the event horizon is bent, causing the light to bend around the black hole.
One side of the accretion disk is also brighter than the other half, due to the relative light phenomenon. One side of the disk moving towards us will be brighter, because it is close to reaching the speed of light. The other half that moves away from us will have the opposite effect.
Based on these factors, NASA has created a new image, which is considered to be a very accurate version. These simulated images will become a tool, allowing science to understand more the physical phenomena surrounding a black hole, and thus get a true picture of them.