General relativistic compact stars with exotic matter

TL;DR

This paper investigates the structure of relativistic compact stars containing exotic matter, focusing on magnetic field distributions and phase transitions, with implications for astrophysical phenomena like cooling.

Contribution

It introduces a model for hybrid stars with magnetic fields affected by quark-hadron phase transitions, highlighting a characteristic magnetic field distribution.

Findings

Discontinuous magnetic field distribution in hybrid stars due to phase transition

Finite size effects of quark-hadron mixed phase influence star structure

Magnetic field distribution impacts cooling processes in magnetars

Abstract

We study structures of general relativistic compact stars with exotic matter. Our study is based on axisymetric and stationary formalism including purely toroidal magnetic field. We also study the finite size effects of quark-hadron mixed phase on structures of magnetars. For hybrid stars, we find a characteristic distribution of magnetic field, which has a discontinuity originated in the quark-hadron mixed phase. These distributions of magnetic field will change astrophysical phenomena, such as cooling processes.