https://doi.org/10.1140/epja/s10050-025-01562-0
Regular Article - Theoretical Physics
Crust (unified) tool for equation-of-state reconstruction (CUTER) v2
1
Université de Caen Normandie, ENSICAEN, CNRS/IN2P3, LPC Caen UMR6534, 14000, Caen, France
2
Department of Physics and Astronomy, Rice University, 6100 Main Street, 77251-1892, Houston, TX, USA
3
Grand Accélérateur National d’Ions Lourds (GANIL), CEA/DRF - CNRS/IN2P3, Boulevard Henri Becquerel, 14076, Caen, France
4
Observatoire astronomique de Strasbourg, CNRS, Université de Strasbourg, 11 Rue de l’université, 67000, Strasbourg, France
5
LUX, CNRS, Observatoire de Paris, 5 place Jules Janssen, 92915, Meudon, France
6
Nicholas and Lee Begovich Center for Gravitational Wave Physics and Astronomy, California State University Fullerton, 92831, Fullerton, CA, USA
Received:
15
January
2025
Accepted:
3
April
2025
Published online:
26
May
2025
The equation of state (EoS) is a needed input to determine the neutron-star global properties and to relate them. It is thus important to provide thermodynamically consistent and unified EoSs to avoid possible biases in the analyses coming from the use of inconsistent EoSs. We propose a numerical tool, CUTER, allowing the user to consistently match a nuclear-physics informed crust to an arbitrary higher density EoS. We present here the second version of this tool, CUTER v2. Two functionalities are available with the CUTER v2 tool, allowing the user to reconstruct either the whole (outer and inner) crust, or the outer crust only. We show that the code, that has been tested and validated for use by the astrophysical community, is able to efficiently perform both tasks, allowing the computation of neutron-star global properties in a consistent way.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
