# Born-Infeld magnetars: larger production of gravitational waves due to larger toroidal magnetic fields

## TL;DR

This paper explores how nonlinear electromagnetic theories, specifically Born-Infeld, can lead to stronger magnetic fields in magnetars, increasing gravitational wave emission and potentially aiding future detection efforts to test fundamental physics.

## Contribution

It advocates for using the Born-Infeld nonlinear electromagnetic model to explain magnetar magnetic fields and predicts enhanced gravitational wave signals compared to standard models.

## Key findings

- Larger toroidal magnetic fields in Born-Infeld magnetars
- Increased gravitational wave production in nonlinear electromagnetism
- Potential for future gravitational wave detection to test nonlinear theories

## Abstract

We discuss some aspects of Pereira et al. (2018) concerning magnetars described by nonlinear theories of the electromagnetism and make the case for the Born-Infeld Lagrangian. We focus on the increase of toroidal magnetic fields in these systems with respect to ordinary magnetars and the subsequent increase of gravitational wave production. In summary, nonlinear theories of the electromagnetism would make it more likely for the detection of gravitational waves with future detectors, which could constrain nonlinear aspects of electrodynamics not entirely possible on Earth-based particle accelerators.