New method to detect hidden black holes.

How many black holes are hidden and specifically, how many supermassive black holes are hidden, a NASA study has presented that gives an answer, for this they have used several telescopes, although the most notable in this case is the nuSTAR ray telescope of the POT. The idea was to know how many of them are hidden behind dense clouds of gas and dust. Astronomers suspect that all Galaxies have a black hole at their center, but they cannot go galaxy by galaxy looking to see, it would be crazy, the question is that this new study has used improved techniques to discover those supermassive black holes that could be hidden within a group of galaxies that is taken as a reference, it is like a survey, a series of typical galaxies is taken and depending on whether they are found further or fewer hidden supermassive black holes, that data is extrapolated to the rest and the data is surprising.

Because the estimate they have found is much higher than that obtained in previous studies, the result has just been published in a scientific journal and according to this research, approximately 35% of supermassive black holes are hidden, we cannot see, at least With the naked eye we would have to use these types of special methods to detect them, that means that the clouds of gas and dust that surround them are so dense that they block even low-energy x-ray light, in fact, scientists believe that they could There could be many more and that The percentage could be close to 50%, that is, of those that we can easily detect in quotes, there would be the same amount that are hidden and that we cannot easily detect that are hidden within these bubbles of gas and dust. Black holes are the end of the universe, because in the event horizon a black hole ends what we know about the universe, they would be death, if in popular folklore we draw death as a skeleton with a scythe in the universe that would have to be use a black hole, because black holes destroy stars or prevent the formation of other new stars and act in various ways on the galaxy where they are located, I am talking about the supermassive ones, the ones that have billions of millions times the mass of the sun.

A normal black hole that we know is formed by the collapse of massive stars, the limit is 20 solar masses, a star of 20 solar masses or more when the core collapses becomes a black hole but that black hole is where that massive star was, If that massive star was on the periphery of the galaxy, the black hole will stay there and if it is, for example, close to us, the black hole will stay there and follow the same trajectory that the star followed, the difference is that the stars have a limited lifespan while Black holes can live much longer, so as time goes by, black holes do “fall” or get closer to the core of the galactic center, but it is because of their age, not because of where they form. It is true that there is more formation of massive stars sometimes in the galactic core than in other outer parts of the galaxy because in the galactic core because in general not always, but in the galactic core there are usually more clouds of gas and dust more mass more material to form massive stars.