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Black holes, as we know them, may not exist



If you dived into a black hole (something we would not recommend), you would probably find a singularity or an infinitely small and dense dot in the center. Or physicists have always thought that.

But now two scientists suggest that some black holes could not be black holes at all. Instead, they can be weird objects full of dark energy – the mysterious force that pushes the limits of the universe and causes it to expand.

Related: 9 Ideas About Black Holes That Will Blow Your Mind Out

"If what we took to be black holes are actually objects without singularities, then is The Accelerated Expansion of Our Universe A Natural Sequence Kevin Croker, an astrophysicist at the University of Hawaii in Mānoa, describes this idea in a new study published on the Internet on August 28 Astrophysical Journal. If they are true and the singularity in the heart of a black hole could be replaced by a strange energy that diverges everything, it could revolutionize the way we think about these dense objects, a black hole. "Croker and Joel Weiner, emeritus professor for Mathematics at the same university, dealt with Friedmann's equations, which are derived from Einstein's theory of the general R Simplify eligibility theory. (Relativity describes how mass and energy change space-time.) Physicists use Friedmann's equations to describe the expansion of the universe, in part because mathematics is simpler than in Einstein's equation body, which describes relativity. The team found that ultra-dense and isolated regions of space, such as neutron stars and black holes, like all other areas, must be mathematically treated to properly write Friedmann's equations. So far, cosmologists have thought it sensible to ignore the internal details of ultra-dense and isolated regions, such as the inside of a black hole.

"We have shown that there is only one way to [construct these equations]," Croker told Live Science. "And if you do it the one way, which is the right way, you find some interesting things." these alternatives to black holes. The researchers discovered this in mathematics after correcting the spelling of Friedmann's equations. And in a follow-up article submitted to the Astrophysical Journal and published on September 7 in the Preprint Journal arXiv they showed that these alternatives to black holes, called Generic Objects of Dark Energy Explain the peculiarities of gravitational wave observations from 201

6.

Friedmann's mathematics showed that over time these ultra-dense objects gain weight simply through the expansion of the universe Even though there is no nearby material for them to consume. Just as light traveling through expanding space loses energy – an effect known as redshift – matter also loses weight as space expands. The effect is usually so small that it is not visible. However, with ultrathin material with very high internal pressure called relativistic material, the effect is noticeable. The dark energy is very relativistic and its pressure counteracts normal matter and light – so objects that consist of it (like this hypothetical GEODEN) gain in weight over time.

"Light is a strange thing many ways," said Croker. "People did not expect this behavior to be shown in other objects, but we have shown that they can be seen in another object, GEODEs.

GEODEs were first proposed as an idea in the 1960s But the mathematics it supports has been recently developed, but it has been found that these strange objects could also provide a simple explanation for observed large black hole mergers. "In 2016, members of the Laser Interferometer Gravitational Wave Observatory ( LIGO) -Virgo announced that they had the first observations of a coalition of black holes but the calculated masses of the suspected black holes were unexpected – scientists expected the masses to be either much higher or lower.

But GEODEs Over time, unlike traditional black holes, they take on Ge If two GEODEN that formed in the younger Universe finally collided, they would have become larger than typical black holes at the time of their collision. At that point, the masses of the GEODEs would match the masses observed in the collision observed by LIGO-Virgo. Instead of having to imagine a highly specific situation that led to the merger, GEODEs could offer a simpler solution for explaining the observations.

However, not all scientists are convinced. The new description of these objects is "catchy and hard to digest," said Vitor Cardoso, a professor of physics at the Instituto Superior Técnico in Lisbon, Portugal, who was not involved in the study, using Live Science in an e-mail. But he added, "I like the idea of ​​finding alternatives to black holes – it forces us to reinforce the paradigm of black holes, and sometimes it's also difficult to find things if we're not looking for them."

Originally published on Live Science .

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(Photo credit: All About Space Magazine)


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