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Modelling the deformability of magnetized neutron stars in the light of future continuous gravitational waves detection

Published online by Cambridge University Press:  27 February 2023

Niccolò Bucciantini Open the ORCID record for Niccolò Bucciantini [Opens in a new window]  and
Jacopo Soldateschi
Niccolò Bucciantini
Affiliation:
INAF - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125 Firenze, Italy Dip. di Fisica e Astronomia, Università di Firenze, Via G. Sansone 1, 50019 Sesto F.no, Italy INFN - Sezione di Firenze, Via G. Sansone 1, 50019 Sesto F.no, Italy email: [email protected]
Jacopo Soldateschi
Affiliation:
INAF - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125 Firenze, Italy Dip. di Fisica e Astronomia, Università di Firenze, Via G. Sansone 1, 50019 Sesto F.no, Italy INFN - Sezione di Firenze, Via G. Sansone 1, 50019 Sesto F.no, Italy email: [email protected]
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Abstract

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Neutron stars are known to host extremely powerful magnetic fields. Among other effects, one of the consequences of harboring such fields is the deformation of the neutron star structure, leading, together with rotation, to the emission of continuous gravitational waves (CGWs). We present an extensive numerical study of magnetized neutron stars in GR with a large variety of different Equations of State (EoSs) and show that it is possible to find simple relations between the magnetic deformation of a neutron star, its mass and radius, that are mostly independent on the EoS or magnetic configuration. We discuss how these relations can be used in conjunction with possible future CGWs detection to set constrains on the EoS and magnetic configurations of NSs (e.g. the presence of a superconducting phase). By carrying out a population synthesis, we estimate the possible CGWs detectability of galactic millisecond pulsars, with third generation GW detectors.

Keywords

(stars:) pulsars: generalstars: neutronmagnetic fieldsgravitational waves
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S363: Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution , June 2020 , pp. 199 - 202
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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