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- W3100144779 endingPage "A44" @default.
- W3100144779 startingPage "A44" @default.
- W3100144779 abstract "Among the possible extensions of General Relativity that have been put forward in order to address some long standing issues in our understanding of the Universe, Scalar-Tensor Theories have received a lot of attention for their simplicity. Interestingly, some of these predict a potentially observable non-linear phenomenon, known as textit{spontaneous scalarisation}, in the presence of highly compact matter distributions, like the case of neutron stars. Neutron stars are ideal laboratories to investigate the properties of matter under extreme conditions, and in particular they are known to harbour the strongest magnetic fields in the Universe. Here, for the first time, we present a detailed study of magnetised neutron stars in Scalar-Tensor Theories. First, we show that the formalism developed for the study of magnetised neutron stars in General Relativity, based on the textit{eXtended Conformally Flat Condition}, can easily be extended in the presence of a non-minimally coupled scalar field, retaining many of its numerical advantages. We then carry out a study of the parameter space considering the two extreme geometries of purely toroidal and purely poloidal magnetic fields, varying both the strength of the magnetic field and the intensity of scalarisation. We compare our results with magnetised general-relativistic solutions and un-magnetised scalarised solutions, showing how the mutual interplay between magnetic and scalar fields affect the magnetic and the scalarisation properties of neutron stars. In particular, we focus our discussion on magnetic deformability, maximum mass and range of scalarisation." @default.
- W3100144779 created "2020-11-23" @default.
- W3100144779 creator A5006761766 @default.
- W3100144779 creator A5019008392 @default.
- W3100144779 creator A5081381437 @default.
- W3100144779 date "2020-08-01" @default.
- W3100144779 modified "2023-10-05" @default.
- W3100144779 title "Axisymmetric equilibrium models for magnetised neutron stars in scalar-tensor theories" @default.
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