Properties of pasta phases in catalyzed neutron stars

Dinh Thi, H. and Fantina, A. F. and Gulminelli, F. (2022) Properties of pasta phases in catalyzed neutron stars. Il nuovo cimento C, 45 (3). pp. 1-7. ISSN 1826-9885

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Exotic non-spherical configurations of nuclei, known as “pasta” phases, are expected to be present at the bottom of the inner crust of a neutron star. We study the properties of these configurations in catalyzed neutron stars within a compressible liquid-drop model approach, with surface parameters optimized to reproduce experimental nuclear masses. Our results show that the properties of the pasta phases exhibit strong model dependence. To estimate the model uncertainties, a Bayesian analysis is performed, combining information from nuclear physics experiments and chiral perturbation theoretical calculations with astrophysical observations. The inferred posterior distributions are discussed, with particular focus on the effect of the low-density energy functional on the predictions.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 30 Jun 2022 13:44
Last Modified: 30 Jun 2022 13:44

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