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相关论文: Hall equilibria with toroidal and poloidal fields:…

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We study the time evolution of non-axisymmetric linear perturbations of a rotating magnetised neutron star, whose magnetic field is multipolar and purely poloidal. The background stellar configurations are generated self-consistently,…

太阳与恒星天体物理 · 物理学 2015-05-20 S. K. Lander , D. I. Jones

The general solution of hydrostatic equilibrium equations for a two-component fluid of ions and electrons without a local electroneutrality constraint is found in the framework of Newtonian gravity theory. In agreement with the Poincar\'e…

太阳与恒星天体物理 · 物理学 2018-09-18 M. I. Krivoruchenko , D. K. Nadyozhin , A. V. Yudin

The magnetic field in Hall plasmas is frozen in the electron component and is advected not only with the plasma motion but also with the electrical current flow. Its coupling with the plasma may be not as strong as characteristic of the MHD…

天体物理学 · 物理学 2009-11-06 L. I. Rudakov

We investigate the influence of spatially inhomogeneous chiral symmetry-breaking condensates in a magnetic field background on the equation of state for compact stellar objects. After building a hybrid star composed of nuclear and quark…

核理论 · 物理学 2015-11-18 S. Carignano , E. J. Ferrer , V. de la Incera , L. Paulucci

By choosing appropriate deformed Maxwellian ion and electron distribution functions depending on the two particle constants of motion, i.e. the energy and toroidal angular momentum, we reduce the Vlasov axisymmetric equilibrium problem for…

等离子体物理 · 物理学 2015-08-12 Ap Kuiroukidis , G. N. Throumoulopoulos , H. Tasso

We study the magnetic braking and viscous damping of differential rotation in incompressible, uniform density stars in general relativity. Differentially rotating stars can support significantly more mass in equilibrium than nonrotating or…

天体物理学 · 物理学 2016-08-30 Yuk Tung Liu , Stuart L. Shapiro

Magnetic fields play a crucial role in many astrophysical scenarios and, in particular, are of paramount importance in the emission mechanism and evolution of Neutron Stars (NSs). To understand the role of the magnetic field in compact…

高能天体物理现象 · 物理学 2015-06-18 A. G. Pili , N. Bucciantini , L. Del Zanna

We study the properties and stability of nuclei in the inner crust of neutron stars in the presence of strong magnetic fields $\sim 10^{17}$ G. Nuclei coexist with a neutron gas and reside in a uniform gas of electrons in the inner crust.…

高能天体物理现象 · 物理学 2015-05-20 Rana Nandi , Debades Bandyopadhyay , Igor N. Mishustin , Walter Greiner

Axisymmetric toroidal equilibria with toroidal and poloidal rotations are solved with a specific set of source functions. The two independent solutions are associated to L and H modes. The L/H transition is regarded as a bifurcation from…

等离子体物理 · 物理学 2009-02-05 K. H. Tsui

The stability of large-scale magnetic fields in rotating stars is explored, using 3D numerical hydrodynamics to follow the evolution of an initial poloidal field. It is found that the field is subject to an instability, located initially on…

天体物理学 · 物理学 2009-11-13 J. Braithwaite

Parker problem in Hall magnetohydrodynamics (MHD) is considered. Poloidal shear into the toroidal flow generated by the Hall effect is incorporated. This is found to lead to a {\it triple deck} structure for the Parker problem in Hall MHD,…

空间物理 · 物理学 2015-05-13 Bhimsen K. Shivamoggi

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

Magnetars have inferred polar field strengths in excess of the Schwinger limit, where non-linear electromagnetic effects can be significant. Their internal fields may be even stronger, suggesting that Maxwellian characterizations of…

高能天体物理现象 · 物理学 2025-05-12 Arthur G. Suvorov , José A. Pons

This study investigates elastic deformation driven by the Hall drift in a magnetized neutron-star crust. Although the dynamic equilibrium initially holds without elastic displacement, the magnetic-field evolution changes the Lorentz force…

高能天体物理现象 · 物理学 2022-10-26 Yasufumi Kojima

We explore the thermal and magnetic-field structure of a late-stage proto-neutron star. We find the dominant contribution to the entropy in different regions of the star, from which we build a simplified equation of state for the hot…

高能天体物理现象 · 物理学 2021-02-24 S. K. Lander , P. Haensel , B. Haskell , J. L. Zdunik , M. Fortin

We present 3D MHD simulations of purely toroidal and mixed poloidal-toroidal magnetic field configurations to study the behavior of the Tayler instability. For the first time the simultaneous action of rotation and magnetic diffusion are…

太阳与恒星天体物理 · 物理学 2015-05-27 Juan C. Ibañez-Mejia , Jonathan Braithwaite

Millisecond pulsars are believed to be old pulsars spun up by a surrounding accretion disc. Magnetic fields are thought to play a leading role in this, both by determining the location of the inner edge of the disc and by exerting an…

太阳与恒星天体物理 · 物理学 2011-07-07 L. Naso , J. C. Miller

We study the cooling evolution of neutron stars with strong poloidal magnetic fields (with strength not far from observed values) using the full general relativity 2-dimensional \textit{Astreus} code, which solves consistently Einstein's…

高能天体物理现象 · 物理学 2025-06-12 Rodrigo Negreiros , Jeffrey Peterson , Veronica Dexheimer

In association with the Goldreich-Julian's magnetic braking mechanism to explain the luminosity of radio pulsars as a result of their spin-down, it is of some interest to explore how much of magnetic flux can actually penetrate the surface…

天体物理学 · 物理学 2007-05-23 Hongsu Kim , Hyung Mok Lee , Chul H. Lee , Hyun Kyu Lee

We calculate non-axisymmetric oscillations of neutron stars magnetized by purely poloidal magnetic fields. We use polytropes of index $n=1$ and 1.5 as a background model, where we ignore the equilibrium deformation due to the magnetic…

高能天体物理现象 · 物理学 2015-12-16 Hidetaka Asai , Umin Lee , Shijun Yoshida