How can a supermassive black hole be formed from dark matter? Recently, a new theoretical study is giving such a hint. An international research team led by Universidad Nacional de la Plata and ICRNET researcher Carlos Argoels is conducting the study. They discovered that the high-density supermassive black hole at the center of the galaxy could be made up of dark matter, no ordinary matter. Their discovery is expected to give a clearer idea of how the universe was formed. The research paper is published in the monthly circular of the Royal Astronomical Society.
Initially, exactly how supermassive black holes formed is one of the biggest questions in galaxy evolution. Scientists are observing supermassive black holes formed 600 million years after the Big Bang, but no explanation has yet been given for how black holes are evolving so rapidly.
Their standard structure model involves normal baryonic matter. Atoms basically make up stars, planets, and all visible objects. And these objects break their own structure under the influence of a strong gravitational ball and create black holes. And the mass and size of those black holes increase over time. However, in this new study, scientists are investigating the possible existence of dark matter at the center of a stable galaxy. The idea is that the dark matter at the center of the galaxy may condense and transform into a supermassive black hole at some point.
Supermassive black holes can form at much faster times than other methods proposed according to their model. And according to this model, supermassive black holes may form at the center of the galaxy before it is fully developed. However, his proposal does not match his current perception of black holes.
Carlos Argoels said the new structure provides new information. How supermassive black holes formed in the ancient universe before stars formed or without the elements needed to grow them. This new theory is able to give a natural explanation in this regard.
The new model further states that a relatively small amount of mass requires a relatively small amount of dark matter to turn into a black hole. This is especially true of dwarf galaxies and their surrounding galaxies. According to researchers, these dwarf galaxies may form dark matter nuclei instead of the expected black holes. The center of such a dark matter can mimic the gravitational sign of a black hole. It can also explain the rotation of galaxies surrounded by dark matter.
Arguelles added that this model shows how dark matter rings can create unusual densities in the center of the galaxy. Which can help to better understand the structure of supermassive black holes. Proving for the first time, this kind of ring of dark matter can really form a cosmic structure. And can keep it stable.
The authors of the research paper hope that other studies in the near future will better explain the formation of supermassive black holes in the early days of our universe. At the same time it will help us to know how dense dark matter is working in the centers of inert galaxies including the Milky Way.
Source: Science Daily
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