Uma análise das curvas de rotação de galáxias em modelos de branas.

Abstract

The dimensionality of spacetime has become a recurring theme of study in the high energy physics research. Initially motivated by the uni cation of fundamental forces of Nature, today is an indispensable and inseparable com- ponent in the string theory. In this work we are interested in discussing the e¤ects of the alleged extra dimensions in Physical systems where gravity is the dominant force. For this purpose, we will study the rotation curves of the galaxy NGC 3198, in the context of branes theories RSII and DGP. Taking into account the presence of dark matter, we can make estimates for the free parameters of the theory, using the statistical method of chi-squared function.