Thermal Relaxation and Cooling of Quark Stars with a Strangelet Crust

Abstract

In this article, we explore the cooling of isolated quark stars. These objects are structured of a homogeneous quark matter core and crusted by matter. To do this, we adopt two kinds of crust: (i) a crust made of purely nuclear matter following the Baym-Pethick-Sutherland (BPS) equation of state (EoS) and (ii) a crust made of nuggets of strange quark matter (strangelets). Both models have the same quark matter core described by the MIT bag model EoS. Our main purpose is to quantify the effects of a strangelet crust on the cooling and relaxation times of these strange stars. We also perform a thorough study of the thermal relaxation of quark stars, in which we have found that objects with a strangelet crust have a significantly different thermal relaxation time. Our study also includes the possible effects of color superconductivity in the quark core.

7 pages, 8 figures

References in corpus (9)

• Color superconductivity in dense quark matter
• Color-Superconducting Gap in the Presence of a Magnetic Field
• The Strange Star Surface: A Crust with Nuggets
• Thermal luminosities of cooling neutron stars
• The Stability of Strange Star Crusts and Strangelets
• Meson current in the CFL phase
• Critical temperature for kaon condensation in color-flavor locked quark matter
• Thickness of the strangelet-crystal crust of a strange star
• Revisiting the thermal relaxation of neutron stars

Cited by in corpus (6)

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• Impact of Multiple Phase Transitions in Dense QCD on Compact Stars
• Pair creation in hot electrosphere of compact astrophysical objects
• On the Cooling of Compact Stars in Light of the HESS J1731-347 Remnant
• Constraints from Gamma-ray Burst Phenomenology on the Hypothesis of Quark Star as the central engines of Gamma-ray Bursts
• Pair luminosity and cooling of newborn strange star: unpaired quarks