Estudo da modelagem da equação de redução da velocidade de um pulsar.

Abstract

Neutron stars are one of the possible ends of life for massive stars that belong to the main sequence. They are small but extremely hot and dense, have very high gravities and can have extreme magnetic fields. The development of the theory of general relativity was fundamental for the study and understanding of the objects in question, because it would be impossible to understand them using Isaac Newton’s classical theory of gravitation. The metric that geometrically characterizes neutron stars is inspired by the Schwarzschild solution for general relativity. Within the study of pulsars, it is necessary to understand that neutron stars have a rotation composed of two components: a solid body and a fluid one. In this way, the strong magnetic fields exert a deceleration effect on the rate of rotation that occurs from the moment there is a loss in the angular momentum of the electromagnetic radiation. Thus, the present work aims to approach general relativity, making an approach about the generalities of real scalar fields, and, later, this tool will be applied for the characterization of parameters used in the description of pulsars, more specifically in the study of the display of the braking index, in order to obtain curves of the braking index as a function of time. In these approaches, we hope to submit our theoretical proposals to experimental data.