The role of quark matter surface tension in magnetars

TL;DR

This paper investigates how the surface tension of quark matter varies in different magnetar environments, considering factors like temperature, density, neutrinos, droplet size, and magnetic fields, with implications for astrophysics.

Contribution

It provides a detailed analysis of quark matter surface tension in magnetars using the MIT bag model and multiple reflection expansion formalism, considering various physical conditions.

Findings

Surface tension depends on temperature, density, and magnetic fields.

Magnetar environment significantly influences quark matter properties.

Results have implications for the structure and evolution of magnetars.

Abstract

In spite of its key role in compact star physics, the surface tension of quark matter is not well comprehended yet. In this work we analyze the behavior of the surface tension of three-flavor quark matter in the outer and inner core of cold deleptonized magnetars, proto magnetars born in core collapse supernovae, and hot magnetars produced in binary neutron stars mergers. We explore the role of temperature, baryon number density, trapped neutrinos, droplet size, and magnetic fields within the multiple reflection expansion formalism. Quark matter is described within the MIT bag model and is assumed to be in chemical equilibrium under weak interactions. We discuss some astrophysical consequences of our results.