Three years ago, he flew around the world the first shot everwhich depicted a black species. At the time, it was a supermassive object that lay in the middle of the galaxy M87 in the constellation of Virgo in the middle of 55,000 light-years and was created by the Event Horizon Telescope (EHT) observation system. The EHT is not just a single telescope, but presents data collected from several radio telescopes scattered in eight cities across the Earth.
Now the scientists associated with this project boasted another rush, when the public presented a shot of the Sagittarius A * object, which is now really confirmed by the massive black dragon in the center of the galaxy. It is 26,000 light-years away and weighs one million Suns.
Since ern dra is completely dark, we cannot see it directly. The gas around the bag reveals unmistakable signs of its presence: a dark central area known as black dry and a clear ring around it. Zbr captures rays of light curved in a strong gravitational field ern dry, explain astronomers.
If we take a picture, then we do not mean photography, but the interpretation of radio data, which have been converted into a visual form. The results were sweating for the leader.
Visible ern dry in the center of the galaxy
Since 1970, astronomers have been talking about a bright, high-density radio source at the center of the galaxy, which is projected in the sky into the constellation of Stelce. Based on 30 years of repeated position changes and orbits of several stars in close proximity to Sgr A * darkness under the leadership of Reinhard Genzel and Andrei M. Ghez, the collapse of an object of this mass and density is most likely a supermassive black. species. In 2020, they were awarded the Nobel Prize in Physics.
The picture is the result of many years of work by about 300 scientists from Africa, Asia, Europe and North and North America, who analyzed data from several April nights in 2017. They contributed in a way that looked like shooting photographs with very long exposures, when they collected data for several hours.
They had to deal with a number of problems. Looking at the black species in the center of the galaxy, there is a lot of dust, such as dust and neutrino and ionized gas, which forms the interstellar mass.
The gas near ernch dr, both in the galaxy M87 * and in the case of Sgr A *, moves at the same speed as the speed of light. But while in the case of the M87 it took him one day and a week, for many men Sgr A * it is barely minutes. This means that the brightness and distribution of gas around the Sgr A * changed very quickly during the EHT observation, it was a bit like taking a sharp photo of the young man, explains EHT scientist Chi-kwan Chan of the Steward Observatory at the University of Arizona.
Thus, the scientists had to develop procedures that eliminated the movements of this mass. While the M87 * was simple and stable, all the images looked the same, but not in the case of the Sgr A *. The black dry Sgr A * image is the average of the various images it extracted to reveal the horse giant at the center of the galaxy for the first time, explaining the procedure to the scientists.
Even so, the image was not perfect and is blurred by turbulent plasma, which limited the view of the galaxy’s center. It is necessary to realize that the view to the distance of 26 thousand light years from such a massive object has in the sky about the same clay size as the donut on the surface of Msce.
Pictures of two black drone captured as part of the Event Horizon Telescope project. The one on the left is 55,000 light-years away in the Messier 87 galaxy, and on the right is Sagittarius A * from the center of the galaxy.
On the other hand, if we compare the pictures M87 * and Sgr A *, they are very similar across the different sizes of both ernch dr. In the relay, ern dra is in the center of the Galaxy more than a thousand men and less mass than M87 *. Scientists praise that the confirmed ern dra in the middle of the galaxy is now the answer to the assumptions and theories.
We were amazed at how long the size of the ring coincided with the predictions of Einstein’s general theory of relativity, to EHT project scientist Geoffrey Bower of the Institute of Astronomy and Astrophysics at the Academia Sinica in Taipei. This unprecedented observance has sharply improved our attention to what is happening in the center of the galaxy itself, and it is gaining new insights into how these giant arrays interact with their surroundings, he added.
A telescopic radio telescope connected to the Event Horizon Telescope system.
We have two different types of galaxies and two ern dry ones with very different masses, although they have surprisingly similar edges, warns Co-Chair of the EHT Science Council, Professor Sera Markoffov. This means that when viewed closely, their general relativity and the differences observed in the long distances must be due to the different properties of the mass that surrounds the black.
Researchers can now study the differences between the two paths and advance their knowledge of breeding gravity under extreme conditions.