Can our galaxy destroy the black hole in its center?

Not really. But we'll have to explain. About 20 years ago began to detect concentrations of mass very, very, very high in the center of large galaxies, such as ours or greater. The Milky Way is a spiral galaxy, that means that its structure is flat and has the central part a little more cupped. When I explain to the kids This I tell them that it is like a fried egg that the yolk is the part called the bulb and the disk of the Galaxy is white Clara. And all that structure revolves around the center. To find out how much dough is in the center we only have to measure the speed at which the stars turn or the gas around that center.

And what we see is that there is a very large mass concentration in a very small space. That kind of dough can only be a supermassive black hole. The black holes that we know can be of two sizes: the stellar ones, that are born from the death of very massive stars, that have like a dozen or some dozens of times the mass of the sun. And then there are the supermasses, and here the "super" is really super, because they have millions of times the mass of the sun. What we saw happening in the center of the galaxies was very difficult to explain except if we imagined that there was a supermassive black hole. But since those galaxies are far from us, we had no spatial precision to know if the area was small enough for the only explanation to be the existence of a black hole of that type.

To solve this dilemma, what we have done is to go to the nearest Galaxy center, ours. The problem with the black hole in the center of our galaxy is that, as we are on the outside of the Milky Way, we see it very obscured because there is an enormous amount of dust that prevents us from looking at the visible wavelength, so we have to use the Espe Infrared Ctro because infrared light is better through dust. Observing in the infrared studies have been done to measure directly how the position of stars changes in the central part of the galaxy. What has been seen in an investigation that has lasted ten years is that, first, it is a place where there is no star, nothing that emits light. An explanation compatible with what was observed when measuring the individual orbits of the stars around that area is that in the center it was all revolving around a dark area. And the only thing that explains this is that in that place there is something with four million times the mass of the sun. That is one of the clearest evidence that in the center of the galaxies there are supermassive black holes. You also have to know that this is not the most "super", because there are thousands of millions of times the mass of the sun.

Recreación de una pareja de agujeros negros a punto de fusionarsern Recreation of a couple of black holes about to merge Nasa

The size of the supermassive black holes depends on how fat the central mass of the galaxy is: the more massive the central part of the galaxy, the more massive the black hole is. To get an idea of the size ratio you should know that this area where we believe there is a black hole has minutes of light years or even less and the center of the galaxies in which it is hundreds or hundreds of thousands of light years.

The answer to the question is no, because everything around the supermassive black hole in the center of our galaxy is spinning in balance. It is very difficult that the matter that orbits and at some distance from the nucleus loses its angular momentum, ie its ability to rotate, and change its trajectory to head towards the black hole. For that to happen there should be some mechanism that would cause its destabilization. Black holes, even supermasses, have a radius of influence and beyond that radius do not affect the objects that are there. Only from a certain distance it happens that the matter goes towards the black hole. The black holes are swallowed up, as if to say, where the arm arrives.