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dimanche 29 mars 2015

[hal-01108544] DARK MATTER, A NEW PROOF OF THE PREDICTIVE POWER OF GENERAL RELATIVITY

Without observational or theoretical modifications, Newtonian and general relativity seem to be unable to explain gravitational behavior of large structure of the universe. The assumption of dark matter solves this problem without modifying theories. But it implies that most of the matter in the universe must be unobserved matter. Another solution is to modify gravitation laws. In this article, we study a third way that does not modify gravitation of general relativity and not modify the matter's distribution, by using gravitomagnetism in a new physical context. Compare with Newtonian gravitation, it leads to add a new component without changing the gravity field. As already known, we retrieve that this new component is generally small enough to be undetectable. But we will see that the galaxies clusters can generate a significant component and embed large structure of universe. We show that the magnitude of this embedding component is once again small enough to be in agreement with current experimental results, undetectable at the scale of our solar system, but detectable at the scale of the galaxies and explain dark matter. Mainly, it explains six unexplained phenomena, the rotation speed of galaxies, the rotation speed of dwarf satellite galaxies, the movement in a plane of dwarf satellite galaxies, the decreasing quantity of dark matter with the distance to the center of galaxies' cluster, the expected quantity of dark matter inside galaxies and the expected experimental values of parameters of dark matter measured in CMB. This solution implies consequences on the dwarf galaxies (distribution in planes) that just have been observed and differentiate it from dark matter solution. It could explain some others facts (galaxies with two portions of their disk that rotate in opposite directions, galaxies with a truly declining rotation curve, narrowness of galaxy's jets, precocity of organization of galaxies...).



from HAL : Dernières publications http://ift.tt/1Djekdg

Ditulis Oleh : Unknown // 23:28
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