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相关论文: Magnetised Neutron Stars : An Overview

200 篇论文

Spinning superfluid neutrons in the core of a neutron star interact strongly with co-existing superconducting protons. One consequence is that the outward(inward) motion of core superfluid neutron vortices during spin-down(up) of a neutron…

天体物理学 · 物理学 2009-10-30 Malvin Ruderman , Tianhua Zhu , Kaiyou Chen

The equation of state of a protoneutron star matter including the effects of magnetic field, temperature, nuclear asymmetry and trapped neutrinos are studied. Using the Oppenheimer-Volkoff-Tolman equation global parameters of the…

天体物理学 · 物理学 2007-05-23 R. Manka , M. Zastawny-Kubica , A. Brzezina , I. Bednarek

(Abridged) The hyperaccreting neutron star or magnetar disks cooled via neutrino emission can be a candidate of gamma-ray burst (GRB) central engines. The strong field $\geq10^{15}-10^{16}$ G of the magnetar can play a significant role in…

高能天体物理现象 · 物理学 2014-11-20 Dong Zhang , Z. G. Dai

We conduct force-free simulations of a single neutron star undergoing orbital motion in flat spacetime, mimicking the trajectory of the star about the center of mass on a compact binary system. Our attention is focused on the kinetic energy…

高能天体物理现象 · 物理学 2020-03-18 Federico Carrasco , Masaru Shibata

We investigate the effect of a strong magnetic field on the structure of neutron stars in a model with perturbative $f(R)$ gravity. The effect of an interior strong magnetic field of about $10^{17 \sim 18}$ G on the equation of state is…

高能天体物理现象 · 物理学 2015-06-15 Myung-Ki Cheoun , Cemsinan Deliduman , Can Güngör , Vildan Keleş , C. Y. Ryu , Toshitaka Kajino , Grant J. Mathews

In this Letter, we report a realistic calculation of the magnetic field profile for the equation of state inside strongly magnetized neutron stars. Unlike previous estimates, which are widely used in the literature, we find that magnetic…

高能天体物理现象 · 物理学 2017-10-11 V. Dexheimer , B. Franzon , R. O. Gomes , R. L. S. Farias , S. S. Avancini , S. Schramm

Modelling as a dipole the magnetic interaction of a binary system of neutron stars, we are able to include the magnetic effects in the Newtonian and in the inspiral dynamics of the system using an equivalent one-body description.…

广义相对论与量子宇宙学 · 物理学 2022-11-30 Mariana Lira , Juan Carlos Degollado , Claudia Moreno , Darío Núñez

Situation with highly magnetized neutron stars in binary systems is not yet certain. On the one hand, all best studied magnetars seem to be isolated objects. On the other, there are many claims based on model-dependent analysis of spin…

高能天体物理现象 · 物理学 2023-03-15 S. B. Popov

The ferromagnetic phase in pure neutron matter as well as charge neutral, beta-equilibrated nuclear matter is considered. We employ Quantum Hadrodynamics, a relativistic field theory description of nuclear matter with meson degrees of…

核理论 · 物理学 2013-06-03 J. P. W. Diener

Pulsars are rapidly rotating neutron stars and are the outcome of the collapse of the core of a massive star with a mass of the order of or larger than eight solar masses. This process releases a huge gravitational energy of about 10^{53}…

高能物理 - 唯象学 · 物理学 2011-10-27 M. Barkovich , J. C. D'Olivo , R. Montemayor

We explore the sensitivity of massive stars to neutrino magnetic moments. We find that the additional cooling due to the neutrino magnetic moments bring about qualitative changes to the structure and evolution of stars in the mass window 7…

天体物理学 · 物理学 2010-01-05 Alexander Heger , Alexander Friedland , Maurizio Giannotti , Vincenzo Cirigliano

In this work, we study the effects of strong magnetic field configurations on the population of neutron stars. The stellar matter is described within a relativistic mean field formalism which considers many-body force contributions in the…

核理论 · 物理学 2017-06-28 R. O. Gomes , V. Dexheimer , B. Franzon , S. Schramm

The evolutionary scenario of the neutron star magnetic field is examined assuming a spindown-induced expulsion of magnetic flux originally confined to the core, in which case the expelled flux undergoes ohmic decay. The nature of field…

天体物理学 · 物理学 2009-10-31 Sushan Konar , Dipankar Bhattacharya

This article briefly reviews our current understanding of the evolution of magnetic fields in neutron stars, which basically defines the evolutionary pathways between different observational classes of neutron stars. The emphasis here is on…

高能天体物理现象 · 物理学 2017-09-27 Sushan Konar

Neutron Stars are natural laboratories where fundamental properties of matter under extreme conditions can be explored. Modern nuclear physics input as well as many-body theories are valuable tools which may allow us to improve our…

太阳与恒星天体物理 · 物理学 2015-06-11 V. de la Mota , F. Sébille , Ph. Eudes

In this work, we study the effect of the symmetry slope on the observables of weakly and strongly magnetized neutron stars within the chaotic magnetic field approximation. We investigate the impact of the symmetry energy slope in the…

高能天体物理现象 · 物理学 2026-04-27 Luiz L. Lopes , Cesar V. Flores , Débora P. Menezes

A relativistic degenerate neutron gas in equilibrium with a background of electrons and protons in a magnetic field exerts its pressure anisotropically, having a smaller value perpendicular than along the magnetic field. For critical fields…

天体物理学 · 物理学 2009-01-07 A. Perez Martinez , H. Perez Rojas , H. J. Mosquera Cuesta

In this work, we study in detail the effects of many-body forces on the equation of state and the structure of magnetic neutron stars. The stellar matter is described within a relativistic mean field formalism that takes into account…

核理论 · 物理学 2017-11-29 R. O. Gomes , B. Franzon , V. Dexheimer , S. Schramm

Estimations of magnetic fields of neutron stars, observed as radio and X-ray pulsars, are discussed. It is shown, that theoretical and observational values for different types of radiopulsars are in good correspondence. Radiopulsars in…

高能天体物理现象 · 物理学 2016-01-18 G. S. Bisnovatyi-Kogan

The model for the generation of magnetic fields in a neutron star, based on the magnetic field instability caused by the electroweak interaction between electrons and nucleons, is developed. Using the methods of the quantum field theory,…

高能物理 - 唯象学 · 物理学 2017-01-12 Maxim Dvornikov