{ "id": "2001.11068", "version": "v1", "published": "2020-01-29T19:50:28.000Z", "updated": "2020-01-29T19:50:28.000Z", "title": "Role of the crust on the tidal deformability of a neutron star within a unified treatment of dense matter", "authors": [ "Loïc Perot", "Nicolas Chamel", "Aurélien Sourie" ], "comment": "23 pages, 12 figures", "journal": "Phys. Rev. C 101, 015806 (2020)", "doi": "10.1103/PhysRevC.101.015806", "categories": [ "astro-ph.HE", "gr-qc", "nucl-th" ], "abstract": "The role of the crust on the tidal deformability of a cold nonaccreted neutron star is studied using the recent unified equation of state BSk24. This equation of state, which is based on the nuclear-energy density functional theory, provides a thermodynamically consistent description of all stellar regions. Results obtained with this equation of state are compared to those calculated for a putative neutron star made entirely of homogeneous matter. The presence of the crustal layers is thus found to significantly reduce the Love number $k_2$, especially for low-mass stars. However, this reduction mainly arises from the increase in the stellar radius almost independently of the equation of state. This allows for a simple analytic estimate of $k_2$ for realistic neutron stars using the equation of state of homogeneous matter only.", "revisions": [ { "version": "v1", "updated": "2020-01-29T19:50:28.000Z" } ], "analyses": { "keywords": [ "tidal deformability", "dense matter", "unified treatment", "nuclear-energy density functional theory", "realistic neutron stars" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. C" }, "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable" } } }