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The early life of millisecond magnetars

The early life of millisecond magnetars
The early life of millisecond magnetars

Some neutron stars may be born spinning fast and with strong magnetic fields - the so-called millisecond magnetars. It is important to understand how a star's magnetic axis moves with respect to the spin axis in the star's early life, as this effects both electromagnetic and gravitational wave emission. Previous studies have highlighted the importance of viscous dissipation within the star in this process. We advance this program by additionally considering the effect of the electromagnetic torque. We find an interesting interplay between the viscous dissipation, which makes the magnetic axis orthogonalise with respect to the spin, verses magnetic torques that tend to make the magnetic axis align with the spin axis. We present some results, and highlight areas where our model needs to be made more realistic.

American Institute of Physics
Jones, D. I.
b8f3e32c-d537-445a-a1e4-7436f472e160
Li, Bao-An
Li, Ang
Xu, Furong
Jones, D. I.
b8f3e32c-d537-445a-a1e4-7436f472e160
Li, Bao-An
Li, Ang
Xu, Furong

Jones, D. I. (2019) The early life of millisecond magnetars. Li, Bao-An, Li, Ang and Xu, Furong (eds.) In Xiamen-CUSTIPEN Workshop on the EOS of Dense Neutron-Rich Matter in the Era of Gravitational Wave Astronomy. vol. 2127, American Institute of Physics.. (doi:10.1063/1.5117795).

Record type: Conference or Workshop Item (Paper)

Abstract

Some neutron stars may be born spinning fast and with strong magnetic fields - the so-called millisecond magnetars. It is important to understand how a star's magnetic axis moves with respect to the spin axis in the star's early life, as this effects both electromagnetic and gravitational wave emission. Previous studies have highlighted the importance of viscous dissipation within the star in this process. We advance this program by additionally considering the effect of the electromagnetic torque. We find an interesting interplay between the viscous dissipation, which makes the magnetic axis orthogonalise with respect to the spin, verses magnetic torques that tend to make the magnetic axis align with the spin axis. We present some results, and highlight areas where our model needs to be made more realistic.

Text
1906.02610 - Accepted Manuscript
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More information

Accepted/In Press date: 5 June 2019
Published date: 17 July 2019
Venue - Dates: Xiamen-CUSTIPEN Workshop on the EOS of Dense Neutron-Rich Matter in the Era of Gravitational Wave Astronomy 2019, Xiamen, China, 2019-01-03 - 2019-01-07

Identifiers

Local EPrints ID: 433441
URI: http://eprints.soton.ac.uk/id/eprint/433441
PURE UUID: 7b6c68b3-7361-4102-aad4-f4e38a57ef67
ORCID for D. I. Jones: ORCID iD orcid.org/0000-0002-0117-7567

Catalogue record

Date deposited: 22 Aug 2019 16:30
Last modified: 29 Aug 2019 00:48

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