| Issue |
A&A
Volume 663, July 2022
|
|
|---|---|---|
| Article Number | A19 | |
| Number of page(s) | 6 | |
| Section | Astrophysical processes | |
| DOI | https://doi.org/10.1051/0004-6361/202243148 | |
| Published online | 04 July 2022 | |
Thermal relaxation and cooling of quark stars with a strangelet crust
1
Universidade Federal Fluminense–UFF, Niterói, RJ, Brazil
e-mail: jonathanzapata@id.uff.br
2
Department of Physics and Astronomy, California State University Long Beach, Long Beach, CA 90840, USA
e-mail: jonathanzapata@id.uff.br
Received:
17
January
2022
Accepted:
16
April
2022
Context. In this article we explore the cooling of isolated quark stars. These objects are structured from a homogeneous quark matter core and crusted by ordinary matter or by strangelets.
Aims. Our main purpose is to quantify the effects of a strangelet crust on the cooling and relaxation times of these strange stars.
Methods. We adopt two kinds of crust: (i) a crust made of purely nuclear matter following the Baym-Pethick-Sutherland 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 study also includes the possible effects of color superconductivity in the quark core.
Results. We have found that objects with a strangelet crust have a significantly different thermal relaxation time.
Key words: equation of state / neutrinos / radiation mechanisms: thermal / stars: interiors
© J. Zapata et al. 2022
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
This article is published in open access under the Subscribe-to-Open model. Subscribe to A&A to support open access publication.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.