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相关论文: Magnetic Fields in High-Density Stellar Matter

200 篇论文

It is shown that in strongly magnetized neutron stars, there exist upper limits of magnetic field strength, beyond which the self energies for both neutron and proton components of neutron star matter become complex in nature. As a…

天体物理学 · 物理学 2008-11-26 Somenath Chakrabarty

In the present work, we consider nuclear matter in the innermost crust of neutron stars under the presence of a strong magnetic field within the framework of a relativistic mean-field description. Two models with a different slope of the…

核理论 · 物理学 2022-03-09 Xiaopeng Wang , Jing Li , Jianjun Fang , Helena Pais , Constança Providência

Magnetic fields represent a crucial aspect of the physics and astrophysics of neutron stars. Despite its great relevance, the internal magnetic field configuration of neutron stars is very poorly constrained by the observations, and…

高能天体物理现象 · 物理学 2015-06-18 Riccardo Ciolfi

The properties of matter are significantly modified by strong magnetic fields, $B>>2.35\times 10^9$ Gauss ($1 G =10^{-4} Tesla$), as are typically found on the surfaces of neutron stars. In such strong magnetic fields, the Coulomb force on…

天体物理学 · 物理学 2008-11-26 Dong Lai

We investigate the effects of very strong magnetic fields upon the equation of state of dense bayonic matter in which hyperons are present. In the presence of a magnetic field, the equation of state above nuclear density is significantly…

天体物理学 · 物理学 2009-11-07 A. E. Broderick , M. Prakash , J. M. Lattimer

Recently, neutron stars with very strong surface magnetic fields have been suggested as the site for the origin of observed soft gamma repeaters (SGRs). We investigate the influence of a strong magnetic field on the properties and internal…

天体物理学 · 物理学 2009-10-31 In-Saeng Suh , G. J. Mathews

We investigate medium effects due to density-dependent magnetic moments of baryons on neutron stars under strong magnetic fields. If we allow the variation of anomalous magnetic moments (AMMs) of baryons in dense matter under strong…

高能天体物理现象 · 物理学 2015-05-19 C. Y. Ryu , K. S. Kim , Myung-Ki Cheoun

I review in this work the properties of nuclear and quark matter equation of state under the influence of a strong magnetic field. We analyse the results when they are applied to compact stars description. Finally, we describe the emission…

天体物理学 · 物理学 2007-05-23 G. F. Marranghello

Neutron stars have inferred surface magnetic fields of up to 10^{14} Gauss, in the case of radio pulsars, and up to possibly 10^{15} Gauss, in the case of Soft Gamma-Ray Repeaters and Anomalous X-ray Pulsars. In fields this high, QED…

天体物理学 · 物理学 2007-05-23 Alice K. Harding

Neutron stars might have multipole magnetic fields as implied by recent observations of pulsars. The presence of the quadrupole field might have an effect on the interaction between the disc and the neutron star depending on the location of…

高能天体物理现象 · 物理学 2023-07-26 Sercan Çıkıntoğlu

Most of the baryonic matter in the Universe is permeated by magnetic fields which affect many, if not most, of astrophysical phenomena both, in compact sources and in diffuse gas. Recent years have been marked by a worldwide surge of…

宇宙学与河外天体物理 · 物理学 2010-03-23 Elisabete M. de Gouveia Dal Pino

We present our view of the main physical ingredients determining the evolution of neutron star magnetic fields. This includes the basic properties of neutron star matter, possible scenarios for the origin of the magnetic field, constraints…

天体物理学 · 物理学 2009-11-10 Andreas Reisenegger , Joaquin Prieto , Rafael Benguria , Dong Lai , Pablo Araya

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

Densities in compact stars may be such that quarks are no longer confined in hadrons, but instead behave as weakly interacting particles. In this regime perturbative calculations are possible. Yet, due to high pressures and an attractive…

高能物理 - 唯象学 · 物理学 2009-03-24 Sjoerd Hardeman

I review the effects of magnetic fields on star formation in galaxies. This includes the effects of the magnetorotational instability (MRI) at galactic scales, magneto-Jeans and swing instabilities, Parker instabilities, and the effects of…

天体物理学 · 物理学 2008-04-16 Mordecai-Mark Mac Low

The properties of the extremely strong magnetic fields of neutron stars affect in a unique way their evolution and the associated phenomenology. Due to the lack of constraints from direct observations, our understanding of the magnetic…

高能天体物理现象 · 物理学 2015-06-22 Riccardo Ciolfi

Neutron stars are one of the most exotic objects in the universe and a unique laboratory to study the nuclear matter above the nuclear saturation density. In this work, we study the equation of state of the nuclear matter within a…

核理论 · 物理学 2012-09-26 L. L. Lopes , D. P. Menezes

In this work, we expand on a previously reported realistic calculation of the magnetic field profile for the equation of state inside strongly magnetized neutron stars. In addition to showing that magnetic fields increase quadratically with…

高能天体物理现象 · 物理学 2018-01-10 V. Dexheimer , B. Franzon , R. O. Gomes , R. L. S. Farias , S. S. Avancini , S. Schramm

In this work, we have studied oscillations in the crust of a neutron star which magnetic field has both dipolar and toroidal components, the former extends from the stellar interior to the outer space and the later is confined inside the…

广义相对论与量子宇宙学 · 物理学 2020-02-05 Gibran Henrique de Souza , Ernesto Kemp

Magnetic fields are important at every scale in the star formation process: from the dynamics of the ISM in galaxies, to the collapse of turbulent molecular clouds to form stars and in the fragmentation of individual star forming cores. The…

天体物理学 · 物理学 2008-04-30 Daniel J. Price , Matthew R. Bate , Clare L. Dobbs