An unusual kind of “black hole” may exist in a star. (Image source: Adobe Stock)
sunyesstarA type of star, which is the luminous light among the stars in the skycelestial body, shining in the dark night sky. One study points out that a type of drug called “primordial black hole“The celestial body exists inside the star and will eventually swallow the star from the inside. So is there such a black hole inside the sun?
primordial black hole
There is a hypothetical type of black hole called a “primordial black hole” that is typically as massive as an asteroid but can be smaller than a baseball. Generally speaking, black holes are formed by the gravitational collapse of massive stars. Later, at the end of the 20th century, scientists proposed other sources of black holes, saying that they originated from the early Big Bang. There will be extremely high pressure and temperature for a short period of time after the big bang, so that simple fluctuations can reach the conditions for the formation of black holes. Although most high-density areas will be dispersed due to the expansion of the universe, this kind of native black hole can It continues to exist stably to this day.
In the past, scientists thought that primordial black holes might be related to dark matter because their behavior might be consistent with dark matter particles. If there are enough numbers and distributions, scientists believe that such black holes may have the potential to act as dark matter, knitting the cosmic web together with their own gravity. So does it exist? On September 14, 2015, the gravitational wave event “GW150914” detected by the Laser Interferometer Gravitational Wave Observatory was related to two black holes. Their mass is greater than that of ordinary black holes produced by the death of stars. Scholars believe that they are likely to be formed by dark matter. of primordial black holes.
black hole that eats stars
A paper published in the Astrophysical Journal presents their research on primordial black holes. Earl Bellinger, an astronomer at the Max Planck Institute for Astrophysics, and his research team speculate that dark matter is entirely composed of tiny primordial black holes, assuming that these black holes actually exist inside stars.
During the research process, this kind of primordial black hole will sink into the core of the star. When compared with the mass of the sun, these black holes are as small as dust. Therefore, they have almost no impact on the star at first and grow extremely slowly. . Over time, a black hole with an initial mass of only one billionth the mass of the sun can swallow the star from the inside after 500 million years. When the mass of this black hole grows to the size of the Earth, it will stir the core of the star like a pot of boiling water. This will produce a large amount of radiation and turn into a celestial body driven by a black hole, which the research team calls a “Hawkin star” “. If the mass of the original black hole is less than one trillionth of the mass of the sun, then there will be another development. Although it consumes the material inside the star slowly, by stirring the core, the temperature rise will exceed that of ordinary nuclear fusion, eventually causing the star to expand and become a “red straggler”, which will be colder than ordinary red giants.
So does the sun, which is closely related to our lives, face this imperceptible threat? The article points out that it is certain that there are no black holes inside the sun, but they say that through observation, it is still possible to discover the existence of Hawking stars in the universe, because the European Space Agency’s space telescope “Gaia satellite” has discovered up to 500 red stars. Discrete stars and the face of the universe are still mysterious areas that are difficult for humans to thoroughly study.
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2023-12-27 01:25:24
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