Modelling magnetically deformed neutron stars


Haskell, B., Samuelsson, L., Glampedakis, K. and Andersson, N. (2008) Modelling magnetically deformed neutron stars. Monthly Notices of the Royal Astronomical Society, 385, (1), 531-542. (doi:10.1111/j.1365-2966.2008.12861.x).

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Description/Abstract

Rotating deformed neutron stars are important potential sources for ground-based gravitational wave interferometers such as LIGO, GEO600 and VIRGO. One mechanism that may lead to significant non-asymmetries is the internal magnetic field. It is well known that a magnetic star will not be spherical and, if the magnetic axis is not aligned with the spin axis, the deformation will lead to the emission of gravitational waves. The aim of this paper is to develop a formalism that would allow us to model magnetically deformed stars, using both realistic equations of state and field configurations. As a first step, we consider a set of simplified model problems. Focusing on dipolar fields, we determine the internal magnetic field which is consistent with a given neutron star model and calculate the associated deformation. We discuss the relevance of our results for current gravitational wave detectors and future prospects.

Item Type: Article
ISSNs: 0035-8711 (print)
Related URLs:
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Mathematics > Applied Mathematics
ePrint ID: 54976
Date Deposited: 04 Aug 2008
Last Modified: 27 Mar 2014 18:37
URI: http://eprints.soton.ac.uk/id/eprint/54976

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