Physics Durham University have carried out a simulation of the evolution of the Universe, based on the theory of Chameleon (or f®-gravity), which is a modified version of the General theory of relativity. It turned out that the computer models there galaxy with spiral arms resembling the milky Way. It is reported by Science Alert.
As the researchers write in their paper, f®-gravity unifies Einstein’s theory of relativity, making the latter as its special case. This introduces a feature which allows to explain the phenomenon of the accelerated expansion of the Universe without resorting to concepts such as dark energy or dark matter. In addition, the particles must enter into a fifth fundamental interaction. It contributes to the fact that in environments with a low density of matter the gravitational force increases by four-thirds, but in denser environments (e.g., in the Solar system) such gain is not due to a specific mechanism of shielding.
Another important property of the theory of Chameleon is that it predicts a velocity of propagation of gravitational waves and photons, which do not contradict the observations. However, in the new scientific work physics experienced f®-gravity on the ability to predict the evolution of galaxies. To do this, they modeled describe a new theory of gravity overmassive black holes in the centers of galaxies and influencing the growth and development of stellar systems.
The results of the cosmological simulations have shown that in terms of the f®-gravity formed a rotating disk galaxy with spiral arms. According to scientists, this does not disprove the theory of relativity, however, shows that there are other ways to explain the role of gravity in the evolution of the Universe.
In addition, f®-gravity should affect the distribution of stars and neutral hydrogen, which can be confirmed in the future with the Square Kilometer Array — the largest radio interferometer that will be launched next year.