arXiv subjects

Javier Bonatti-González

Publications and source records attributed to Javier Bonatti-González.

2 recordsLinked to original sources

arXiv2017

A numerical study of approximate metrics with quadrupole moment

Recently, spacetimes described by metrics with three parameters (mass, rotation and small quadrupole moment) was found, and in this paper, null geodesics for these metrics are calculated and visualized. Light scattering, as well as the role that the quadrupole moment plays in deforming these kinds of spacetimes are studied. This is a new application of a symbolic--numeric program that we previously used to study the Bonnor metric.

gr-qc↗

arXiv2015

A Visualization of Null Geodesics for the Bonnor Massive Dipole

In this work we simulate null geodesics for the Bonnor massive dipole metric by implementing a symbolic-numerical algorithm in Sage and Python. This program is also capable of visualizing in 3D, in principle, the geodesics for any given metric. Geodesics are launched from a common point, collectively forming a cone of light beams, simulating a solid-angle section of a point source in front of a massive object with a magnetic field. Parallel light beams also were considered, and their bending due to the curvature of the space-time was simulated.

gr-qc↗