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The evolution of supernova remnants (SNRs) is studied, with particular attention to the effect of magnetic fields with axisymmetric two-dimensional magnetohydrodynamical simulations. The evolution of magnetic SNRs is the same as…

Astrophysics · Physics 2009-11-13 Hidekazu Hanayama , Kohji Tomisaka

The observed timing data, magnetic tilt angle $\chi$, and age of young pulsars could be used to probe some important issues about neutron star (NS) physics, e.g., the NS internal magnetic field configuration, and the number of precession…

High Energy Astrophysical Phenomena · Physics 2024-11-01 Yu-Long Yan , Quan Cheng , Xiao-Ping Zheng

The variety of the observational appearance of young isolated neutron stars must find an explanation in the framework of some unifying approach. Nowadays it is believed that such scenario must include magnetic field decay, the possibility…

High Energy Astrophysical Phenomena · Physics 2015-06-17 A. P. Igoshev , S. B. Popov , R. Turolla

We propose a general method to self-consistently study the quasistationary evolution of the magnetic field in the cores of neutron stars. The traditional approach to this problem is critically revised. Our results are illustrated by…

High Energy Astrophysical Phenomena · Physics 2018-08-08 M. E. Gusakov , E. M. Kantor , D. D. Ofengeim

There exists both theoretical and observational evidence that the magnetic field decay in neutron stars may proceed in a pronounced non--linear way during a certain episode of the neutron star's life. In the presence of a strong magnetic…

Astrophysics · Physics 2009-11-07 U. Geppert , M. Rheinhardt

The ages and masses of neutron stars (NSs) are two fundamental threads that make pulsars accessible to other sub-disciplines of astronomy and physics. A realistic and accurate determination of these two derived parameters play an important…

Astrophysics of Galaxies · Physics 2015-05-27 Bulent Kiziltan

The origin and evolution of magnetic fields of neutron stars from birth has long been a source of debate. Here, motivated by recent simulations of the Hall cascade with magnetic helicity, we invoke a model where the large-scale magnetic…

High Energy Astrophysical Phenomena · Physics 2023-07-27 Nikhil Sarin , Axel Brandenburg , Brynmor Haskell

We revisit the various approximations employed to study the long-term evolution of the magnetic field in neutron star cores and discuss their limitations and possible improvements. A recent controversy on the correct form of the induction…

High Energy Astrophysical Phenomena · Physics 2017-06-28 Andrea Passamonti , Taner Akgün , José Pons , Juan Antonio Miralles

We consider the magnetic and spin evolution of isolated neutron stars assuming that the magnetic field is initially confined to the crust. The evolution of the crustal field is determined by the conductive properties of the crust which, in…

Astrophysics · Physics 2015-06-24 Vadim Urpin , Denis Konenkov

Current models of magnetars require extremely strong magnetic fields to explain their observed quiescent and bursting emission, implying that the field strength within the star's outer crust is orders of magnitude larger than the dipole…

Solar and Stellar Astrophysics · Physics 2016-04-07 Konstantinos N. Gourgouliatos , Toby Wood , Rainer Hollerbach

The intense magnetic fields present in neutron stars are closely linked to their observed temperature and spectral characteristics, timing properties, including spin period and its derivatives. Therefore, a comprehensive theoretical…

High Energy Astrophysical Phenomena · Physics 2025-02-03 Debasis Atta , Vinay Singh , D. N. Basu

We investigate the evolution of the magnetic field of isolated pulsars and of neutron stars in different kinds of binary systems, assuming the field to be originally confined to the crust. Our results for the field evolution in isolated…

Astrophysics · Physics 2009-10-30 Sushan Konar , Dipankar Bhattacharya

The recent discovery of the "weak field, old magnetar", the soft gamma repeater SGR 0418+5729, whose dipole magnetic field is less than 7.5 \times 10^{12} G, has raised perplexing questions: How can the neutron star produce SGR-like bursts…

High Energy Astrophysical Phenomena · Physics 2015-05-30 S. Dall'Osso , J. Granot , T. Piran

The magnetic fields of neutron stars have a large range (~3e10 - 1e15 G). There may be a tendency for more highly magnetized neutron stars to come from more massive stellar progenitors, but other factors must also play a role. When combined…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Roger A. Chevalier

The observed long-term spin-down evolution of isolated radio pulsars cannot be explained by the standard magnetic dipole radiation with a constant braking torque. However how and why the torque varies still remains controversial, which is…

Solar and Stellar Astrophysics · Physics 2015-06-18 Yi Xie , Shuang-Nan Zhang

The origin and fate of magnetars (young, extremely magnetized neutron stars, NSs) remain unsolved. Probing their evolution is therefore crucial for investigating possible links to other species of isolated NSs, such as the X-ray dim NSs…

High Energy Astrophysical Phenomena · Physics 2021-09-29 Jedrzej A. Jawor , Thomas M. Tauris

There has been sufficient observational indication suggesting a causal connection between the binary history of neutron stars and the evolution of their magnetic field. In particular, it is believed that the generation of the low-field…

Astrophysics · Physics 2007-05-23 Sushan Konar

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

(Abridged) The rotational evolution of isolated neutron stars is dominated by the magnetic field anchored to the solid crust of the star. Assuming that the core field evolves on much longer timescales, the crustal field evolves mainly…

Solar and Stellar Astrophysics · Physics 2013-06-11 Jose A. Pons , Daniele Vigano , Ulrich Geppert

Ever since the discovery of the Crab and Vela pulsars in their respective Supernova Remnants, our understanding of how neutron stars manifest themselves observationally has been dramatically shaped by the surge of discoveries and dedicated…

High Energy Astrophysical Phenomena · Physics 2018-01-17 Samar Safi-Harb