Jakarta –
Scientists have found that the universe is dying much faster than they suspect, and has shown when the universe will be destroyed.
The research team from Radboud University in the Netherlands stipulated that all stars in the universe would become dark in the kuinvigintiliun year, which is the number one followed by 78 zero. But this is a much shorter amount of time than the previous prediction of 10 rank 1,100 years, or one followed by 1,100 zero.
The process they believed to be the cause of death of the universe was related to hawking radiation, which was when the black hole radiated radiation when they gradually ‘evaporate’ into nothing.
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This is considered a phenomenon that only occurs in black holes, but the researchers show that objects such as neutron stars and white dwarfs can also evaporate like black holes.
Both neutron stars and white dwarfs are the final stages of the star’s life cycle. Massive stars explode to supernova and then collapse into neutron stars, while smaller stars like our sun evolve into white dwarfs.
These ‘dead’ stars can last for a very long time. But according to the researchers, these stars gradually disappear and explode when it becomes too unstable.
In other words, knowing how long the time needed by Neutron Stars or White Brother to death helps scientists understand the maximum age of the universe, because they will be the last star who dies.
Previous research did not take into account Hawking radiation, and therefore exaggerated the maximum age of the universe, according to the lead researcher Heino Falcke, professor of radio astronomy and astroparticles physics at Radboud University.
Falcke and his colleagues tried to correct this by calculating how long the time needed by the neutron stars and white wishes to decay through processes such as hawking radiation, and found that it took one time of kuinvigintiliun year.
“So, the great doomsday of the universe came much faster than expected, but fortunately it still requires a very long time,” he said in a statement, as quoted by the Daily Mail.
In 1975, famous physicist Stephen Hawking proposed that particles and radiation could come out of the black hole, which was contrary to the general belief that no one could escape the gravitational pull of these very massive objects.
But according to Hawking, two temporary particles can form on the edge of a black hole. Before both can be fused, one particle will be sucked back into a black hole and the other will escape. These loose particles are Hawking radiation.
Because more and more particles are released from time to time, the black hole slowly rot. This is also contrary to Albert Einstein’s theory of relativity, which states that black holes can only grow.
The team used a study in 2023, published in the journal Physical Review Letters, to lay the foundation for the latest discoveries. In previous studies, Falcke and his colleagues showed that all objects that have gravitational fields should be able to evaporate through the same process.
What’s more, their calculations show that the rate of evaporation only depends on the density of the object. From there, the application of the concept of Hawking radiation to neutron stars and white pwang for their new studies is relatively easy.
These findings have been received to be published by the Journal of Cosmology and Astroparticle Physics, but are currently stored on the Arxiv pre-printed server.
Although this new calculation cuts the number of unimaginable years from the age of the universe, it does not change the fact that humans do not need to worry about the end of everything in the near future. But they offer a new view of the controversial Hawking theory.
“By asking questions like this and seeing extreme cases, we want to better understand the theory, and maybe someday, we will uncover the mystery of Hawking radiation,” said colleague Walter Van Suijlekom, a mathematics professor at Radboud University.
(rns/afr)
