Neutron Stars in Modified Teleparallel Gravity

TL;DR

This paper explores how modified teleparallel gravity affects neutron star properties, using realistic equations of state and numerical analysis to understand mass-radius relations and gravitational effects.

Contribution

It introduces a modified teleparallel gravity model, establishes its equivalence to New General Relativity, and analyzes neutron star structure with numerical simulations.

Findings

Mass-radius relations depend on the free parameter of the model.

Effective gravitational coupling influences neutron star properties.

Numerical results show deviations from standard GR predictions.

Abstract

We investigate compact objects in modified teleparallel gravity with realistic equations of state. We propose a modification of Teleparallel Equivalent to General Relativity, then an appropriate tetrad is applied to the field equations. A specific set of relations showing an equivalency between our gravitational model and the New General Relativity is found. The conservation equation implies that our Tolman-Oppenheimer-Volkoff equations are presented with an effective gravitational coupling constant. Numerical analysis using realistic equations of state is made, and the behavior of mass, radius, and the relation mass-radius as functions of a free parameter of our model is also investigated.