The new theory goes like this, that Sagittarius A might be a blob of dark matter. So even that theory would be true, that doesn't mean that there is no black hole in Sagittarius A, which is in the middle of our galaxy. The real form of Sagittarius A is a mystery, and in some theories, there is a large group of black holes.
There is the possibility that in the dark matter cloud or blob is a black hole, which has collected dark matter around it. There is another object called G-2, which is orbiting Sagittarius A, and that object is introduced being another black hole. Officially G-2 is reported as being binary stars or some kind of gas cloud.
There might be strange interaction between black holes near the center of the Milky Way. The Sagittarius A denies that the gas cloud would not drop in the black hole of G-2 and the black hole of G-2 denies that gas would not fall in the Sagittarius A.
But why Sagittarius A is not destroying that structure? Is there still a black hole, that keeps the G-2 in form. So in the wildest models, G-2 is the gas cloud, where is the black hole in it to keep it in form. That black hole denies the destruction of G-2 because of the gravity of Sagittarius A. And Sagittarius A will deny that the gas would not drop in the black hole of G-2.
But the strain of that object has caused the question, that one or both of those objects are forming dark matter, and they are not black holes. Even that thing is right, there might be black holes lurking in the objects Sagittarius A and G-2.
There is the theory, that even black holes can be elastic.
The fact is that the Sagittarius A and G-2 must not identical. There is the possibility that G-2 is the blob of dark matter and the Sagittarius A is a black hole. When a lighter black hole would come near the heavier black hole, the gravity field of the dominating part of the couple is straining the event horizon of the lighter part of the couple.
So in this case Sagittarius A is the dominant part, and G-2 is lighter, so the gravity field of the Sagittarius A causes that the lighter, G-2 object is changing its form. But the theory that a large part of supermassive black holes could be dark matter would be very interesting.
Sometimes is claimed that black holes do not exist. But if the fuzzball theory is right? What is the difference between the black hole and the cosmic ball of yarn that is formed by the superstrings, and which gravity is pulling even light inside it? The term "black hole" means the object, what gravity causes escaping velocity, what is stronger than the speed of light. And that makes them look black.
But the fuzzball, which gravity field pulls photons inside it will also call black holes. The gravity field outside the event horizon affects the same way in every case when it's stronger than light.
The fact is that some lightweight black holes could be fuzzballs, where the matter, what is formed the black hole is just behind the event horizon? The fuzzballs and black holes are not excluded each other. That means that in the universe could be both objects fuzzballs and black holes. But the fact is that if the gravity field of fuzzballs is stronger than the speed of light, why we cannot call them black holes?
()https://www.forbes.com/sites/startswithabang/2021/04/13/the-big-theoretical-physics-problem-at-the-center-of-the-muon-g-2-puzzle/
()https://www.livescience.com/string-theory-fuzzballs-are-black-holes.html
()https://www.sciencealert.com/wild-new-paper-proposes-the-center-of-the-milky-way-might-not-be-a-black-hole?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencealert-latestnews+%28ScienceAlert-Latest%29
()https://www.universetoday.com/115942/mysterious-object-g2-at-galactic-center-is-actually-binary-star/
https://en.wikipedia.org/wiki/Sagittarius_A*#Discovery_of_G2_gas_cloud_on_an_accretion_course
Friday, May 21, 2021
The new wild theory is what if Sagittarius A is not a black hole?
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