Optical images of massive boson stars with nonlinear electrodynamics

TL;DR

This paper explores the optical imaging features of massive boson stars influenced by nonlinear electrodynamics, revealing how their images differ from black holes and how they can be tuned via model parameters.

Contribution

It introduces a numerical analysis of massive boson stars' optical images considering nonlinear electrodynamics, highlighting their distinct features from black holes.

Findings

Optical images vary with initial parameter $\phi_0$ and coupling constant $\Lambda$.

Massive boson stars lack event horizons, affecting their optical appearance.

Distinct optical signatures differentiate them from black holes.

Abstract

This study investigates the optical imaging characteristics of massive boson stars based on a model with Einstein's nonlinear electrodynamics. Under asymptotically flat boundary conditions, the field equations are solved numerically to obtain the spacetime metric of the massive boson stars. Employing the ray-tracing method, we analyze the optical images of the massive boson stars under two illumination conditions: a celestial light source and a thin accretion disk. The research reveals that the configurations and optical images of the massive boson stars can be tuned via the initial parameter $\phi_0$ and the coupling constant $\Lambda$. The absence of the event horizon in the massive boson stars results in distinct optical image characteristics compared to those of black holes.