Roles of crust and core in the tidal deformability of neutron stars

With the recent measurement of GW170817 providing constraints on the tidal deformability of a neutron star, it is very important to understand what features of the equation of state have the biggest effect on it. We therefore study the contribution of the crust to the tidal deformability and the mom...

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Bibliographic Details
Published in:arXiv.org 2019-05
Main Authors: Kalaitzis, A M, Motta, T F, Thomas, A W
Format: Article
Language:English
Subjects:
Deformation
Equations of state
Formability
Moments of inertia
Neutron stars
Neutrons
Online Access:Get full text
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Summary:With the recent measurement of GW170817 providing constraints on the tidal deformability of a neutron star, it is very important to understand what features of the equation of state have the biggest effect on it. We therefore study the contribution of the crust to the tidal deformability and the moment of inertia of a neutron star for a variety of well-known equations of state. It is found that the contributions to these quantities from the low density crust are typically quite small and as a result the determination of the tidal deformability provides an important constraint on the equation of state of dense matter.
ISSN:2331-8422
DOI:10.48550/arxiv.1905.05907