The Meissner effect in neutron stars

Lander, S. K. (2024) The Meissner effect in neutron stars. Monthly Notices of the Royal Astronomical Society, 535 (3). pp. 2449-2468. ISSN 0035-8711

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Abstract

We present the first model aimed at understanding how the Meissner effect in a young neutron star affects its macroscopic magnetic field. In this model, field expulsion occurs on a dynamical time-scale, and is realized through two processes that occur at the onset of superconductivity: fluid motions causing the dragging of field lines, followed by magnetic reconnection. Focusing on magnetic fields weaker than the superconducting critical field, we show that complete Meissner expulsion is but one of four possible generic scenarios for the magnetic-field geometry, and can never expel magnetic flux from the centre of the star. Reconnection causes the release of up to ∼ 5 × 10 46 erg of energy at the onset of superconductivity, and is only possible for certain favourable early-phase dynamics and for pre-condensation fields 10 12 G ≲ B ≲ 5 × 10 14 G. Fields weaker or stronger than this are predicted to thread the whole star.

Item Type: Article
Additional Information: Data availability: The data underlying this article will be made available upon reasonable request.
Uncontrolled Keywords: magnetic fields – stars,neutron,stars,astronomy and astrophysics,space and planetary science ,/dk/atira/pure/subjectarea/asjc/3100/3103
Faculty \ School: Faculty of Science > School of Engineering, Mathematics and Physics
UEA Research Groups: Faculty of Science > Research Groups > Quantum Matter
Faculty of Science > Research Groups > Numerical Simulation, Statistics & Data Science
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Depositing User: LivePure Connector
Date Deposited: 28 Nov 2024 01:37
Last Modified: 11 Dec 2024 01:42
URI: https://ueaeprints.uea.ac.uk/id/eprint/97812
DOI: 10.1093/mnras/stae2453

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