The new "chameleon theory" could explain dark energy, how galaxies were formed

Chameleon Theory

The theory of general relativity explaining the gravity of Einstein may not explain the whole story of the formation of galaxies and black holes in the universe.

According to a press release from the University of Durham, new simulations of supercomputers implementing something called Chameleon Theory provide an alternative explanation of galaxy formation and can also help scientists understand black energy . Chameleon Theory is a new theory of gravity in which the effects of gravity can fluctuate and change depending on the environment. This is a striking contrast to general relativity, in which the gravitational force is treated as a constant. General relativity has been validated experimentally, but the models show that the theory of chameleons can not be ruled out, because a universe acting according to the new theory would always form the same type of galaxies and black holes.

The main difference between the two lies in the fact that general relativity considers dark energy – the mysterious force, but not yet detected, which would have the effect of separating the universe – as a kind of uniform constant. The simulations of Chameleon Theory, described in a study published Monday in the journal Nature Astronomyinstead treat this force as a changing variable. The refinement of the dark energy and gravity variables in the simulation affected the amount of cosmic gases consumed and burned by the supermassive black holes, which determined the number of stars forming in one galaxy.

"Chameleon Theory makes it possible to modify the laws of gravity in order to be able to test the effect of gravity changes on the formation of galaxies," Christian Arnold, a computer cosmologist in Durham, said in a press release. "Thanks to our simulations, we showed for the first time that even if you change the gravity, it would not prevent the formation of disk galaxies with spiral arms."

Chameleon Theory is not intended to demystify general relativity. Models of general relativity and chameleon theory have given rise to realistic galaxies. However, recently-confirmed models suggest that there could be many scientific ways to make sense of the universe – by altering the behavior of gravity on a cosmological scale, Durham scientists at the University of California. Origin of the study think that they have the opportunity to determine what dark energy is.

"Our researches certainly do not mean that general relativity is wrong, but they show that it is not necessarily the only way to explain the role of gravity in the evolution of the world." universe."

READ MORE: Supercomputers Show That "Chameleon Theory" Could Change Our Perception of Gravity[UniversitédeDurhamvia[UniversityofDurhamvia[UniversitédeDurhamvia[UniversityofDurhamviaPhys.org]

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