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This article briefly reviews our current understanding (or lack thereof) of the evolution of magnetic fields in neutron stars, with an emphasis on the binary systems. In particular, the significance of the newly emerging population of…

Solar and Stellar Astrophysics · Physics 2013-11-22 Sushan Konar

The long-term evolution of the internal, strong magnetic fields of neutron stars needs a specific numerical modelling. The diversity of the observed phenomenology of neutron stars indicates that their magnetic topology is rather complex and…

High Energy Astrophysical Phenomena · Physics 2022-10-12 Clara Dehman , Daniele Viganò , José A. Pons , Nanda Rea

We investigate the effects of a magnetic field on the thermodynamics of a neutron system at finite density and temperature. Our main motivation is to deepen the understanding of the physics of a class of neutron stars known as magnetars,…

Nuclear Theory · Physics 2019-06-12 E. J. Ferrer , A. Hackebill

Neutron stars are associated with diverse physical phenomena that take place in conditions characterized by ultrahigh densities as well as intense gravitational, magnetic, and radiation fields. Understanding the properties and interactions…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Feryal Ozel

Neutron stars are fascinating astrophysical objects immersed in strong gravitational and electromagnetic fields, at the edge of our current theories. These stars manifest themselves mostly as pulsars, emitting a timely very stable and…

High Energy Astrophysical Phenomena · Physics 2016-09-28 J. Pétri

We investigate the neutron stars spin evolution (breaking, inclination angle evolution and radiative precession), taking into account the superfluidity of the neutrons in the star core. The neutron star is treated as a two-component system…

High Energy Astrophysical Phenomena · Physics 2013-03-25 D. P. Barsukov , O. A. Goglichidze , A. I. Tsygan

Current burning issues in stellar physics, for both hot and cool stars, concern their magnetism. In hot stars, stable magnetic fields of fossil origin impact their stellar structure and circumstellar environment, with a likely major role in…

Solar and Stellar Astrophysics · Physics 2019-03-18 C. Neiner , J. Morin , J. -C. Bouret , L. Fossati

A collection of modern, field-theoretical equations of state is applied to the investigation of cooling properties of compact stars. These comprise neutron stars as well as hypothetical strange matter stars, made up of absolutely stable…

Astrophysics · Physics 2009-10-28 Ch. Schaab , F. Weber , M. K. Weigel , N. K. Glendenning

We study ambipolar diffusion in strongly magnetised neutron stars, with special focus on the effects of neutrino reaction rates and the impact of a superfluid/superconducting transition in the neutron star core. For axisymmetric magnetic…

High Energy Astrophysical Phenomena · Physics 2017-01-25 Andrea Passamonti , Taner Akgün , José A. Pons , Juan A. Miralles

We use numerical MHD to look at the stability of a possible poloidal field in neutron stars (Flowers & Ruderman 1977), and follow its unstable evolution, which leads to the complete decay of the field. We then model a neutron star after the…

Astrophysics · Physics 2009-11-11 J. Braithwaite , H. C. Spruit

We investigate the emission of rotating magnetized neutron stars due to the acceleration and radiation of particles in the relativistic wind and in the magnetotail of the star. We consider that the charged particles are accelerated by…

Astrophysics · Physics 2009-11-11 M. M. Romanova , G. A. Chulsky , R. V. E. Lovelace

A simple and well known model for thermal radiation spectra from a magnetized neutron star is further studied. The model assumes that the star is internally isothermal and possesses dipole magnetic field (B <= 1e14 G) in the outer…

High Energy Astrophysical Phenomena · Physics 2021-10-27 D. G. Yakovlev

The early 21st century witnesses a dramatic rise in the study of thermal radiation of neutron stars. Modern space telescopes have provided a wealth of valuable information which, when properly interpreted, can elucidate the physics of…

Solar and Stellar Astrophysics · Physics 2016-01-06 A. Y. Potekhin

Scalar-tensor gravity models are among the prime candidates to explain cosmic acceleration, and compact stars provide unique laboratories for testing such theories. Predictions of scalar-tensor gravity in compact stars can be examined…

High Energy Astrophysical Phenomena · Physics 2025-10-08 Fahimeh Rahimi , Zeinab Rezaei , Adamu Issifu

Neutron stars are compact objects rotating at high speed, up to a substantial fraction of the speed of light (up to 20\% for millisecond pulsars) and possessing ultra-strong electromagnetic fields (close to and sometimes above the quantum…

High Energy Astrophysical Phenomena · Physics 2020-01-13 Jérôme Pétri

We investigate the evolution of magnetized protoneutron stars (PNSs) through four schematic stages: neutrino trapped, deleptonization, neutrino transparent, and the final cold, catalyzed neutron star (NS). Using a quasi static approximation…

High Energy Astrophysical Phenomena · Physics 2026-01-08 Harsh Chandrakar , Adamu Issifu , Prashant Thakur , T. K. Jha , Aravind Taridalu

The evolution of the magnetic field in neutron star crusts because of the Hall effect has received significant attention over the last two decades, which is strongly justified because of the dominance of this effect in highly magnetised…

High Energy Astrophysical Phenomena · Physics 2023-03-15 Konstantinos N. Gourgouliatos

Magnetic confinement of the winds of hot, massive stars has far-reaching consequences on timescales ranging from hours to Myr. Understanding the long-term effects of this interplay has already led to the identification of two new…

Solar and Stellar Astrophysics · Physics 2017-11-21 Zsolt Keszthelyi , Gregg A. Wade , Véronique Petit , Georges Meynet , Cyril Georgy

The rotation of a magnetised accreting neutron star (NS) in a binary system is described by its spin period and two angles: spin inclination $\alpha$ with respect to the orbital momentum and magnetic angle $\chi$ between the spin and the…

High Energy Astrophysical Phenomena · Physics 2021-05-26 Anton Biryukov , Pavel Abolmasov

Strong magnetic fields play an important role in powering the emission of neutron stars. Nevertheless a full understanding of the interior configuration of the field remains elusive. In this work, we present General Relativistic…

High Energy Astrophysical Phenomena · Physics 2022-02-16 Ankan Sur , William Cook , David Radice , Brynmor Haskell , Sebastiano Bernuzzi