Structure and deformations of strongly magnetized neutron stars with twisted torus configurations

Details Structure and deformations of strongly magnetized neutron stars with twisted torus configurations Structure and deformations of strongly magnetized neutron stars with twisted torus configurations

2010-03-10

arxiv.org/abs/1003.2148v3

Mon.Not.Roy.Astron.Soc.406:2540-2548,2010

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

10 pages, 5 figures. Minor changes to match the version published on MNRAS

Scientific paper

We construct general relativistic models of stationary, strongly magnetized neutron stars. The magnetic field configuration, obtained by solving the relativistic Grad-Shafranov equation, is a generalization of the twisted torus model recently proposed in the literature; the stellar deformations induced by the magnetic field are computed by solving the perturbed Einstein's equations; stellar matter is modeled using realistic equations of state. We find that in these configurations the poloidal field dominates over the toroidal field and that, if the magnetic field is sufficiently strong during the first phases of the stellar life, it can produce large deformations.

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