(CNN)- A very mysterious shape at the center of Andromeda – the “Fairy” galaxy, a neighbor of the galaxy containing the Earth Milky Way, has just been deciphered.
It is a peculiar cluster of stars located at the center of Fairy Tail and has puzzled astronomers for many years. Normally at the center of a galaxy there will be a symmetrical star cluster, but the star cluster of Fairies is completely distorted, as if it has been smashed by something.
According to Science Alert, a team led by astrophysicist Tatsuya Akiba from the University of Colorado at Boulder (USA) has concluded that it is a sign of the merger of two supermassive black holes, both of which were once central black holes. center of the galaxy.To demonstrate this, the authors ran computer simulations of supermassive black hole collisions and found that the force generated was enough to pull the orbits of stars near the galactic center into a pulling oval. long, as seen in the Andromeda galaxy.
The reason Fairies has two central black holes is because it once swallowed another galaxy. As the galaxy collides and merges, the two central black holes will orbit each other, speeding up before slamming into each other in a monstrous event and then merging. Currently, Fairy Goddess has only one black hole because the merger has completed and left behind a strange star cluster.
The black hole merger won’t destroy the stars of the galaxy, but create a blast of energy powerful enough to affect the positions of the stars.
This is an interesting discovery because the Fairy is predicted to collide with our Milky Way in the next 2 billion years. It will be a fierce confrontation because both galaxies are large, in the form of “monsters” in the universe. A study last year revealed that in order to reach the massive size it is today, the Earth-containing galaxy swallowed about 16 other galaxies.
The collision between the Andromeda and our galaxy is not thought to destroy the Earth, but could cause extinction by creating a force enough to tilt the solar system, knocking the Earth out of the “life zone”. present.