# On the Structure of Rotating Charged Boson Stars

## TL;DR

This paper provides comprehensive solutions for rotating charged boson stars, revealing their anisotropic fluid structure and electromagnetic characteristics, with detailed analysis of energy density and pressure distributions.

## Contribution

It introduces the first complete solutions for rotating charged boson stars, highlighting their anisotropic fluid nature and electromagnetic field properties.

## Key findings

- Energy density is non-zero at the center.
- Uncharged boson stars have a local maximum at the core.
- Rotating boson stars are fully anisotropic fluids.

## Abstract

In this work we present full sets of solutions for rotating charged boson stars with different coupling values. By adopting local comoving coordinates, we are able to find expressions for the effective hydrodynamic quantities of the fluids as seen by this class of observers. We show that not only is the energy density non zero at the center, for the uncharged case it has a local maximum at the core from which it decreases until the point of local minimum where its variation is discontinuous. For the first time, it is reported how rotating boson stars, charged and uncharged, are completely anisotropic fluids featuring three different pressures. Furthermore, the character of the electromagnetic fields is analyzed.