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相关论文: Multipolar electromagnetic fields around neutron s…

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Extremely strong magnetic fields of the order of $10^{15}\,{\rm G}$ are required to explain the properties of magnetars, the most magnetic neutron stars. Such a strong magnetic field is expected to play an important role for the dynamics of…

Spherical neutron star models are studied within tensor-scalar theories of gravity. Particularly, it is shown that, under some conditions on the second derivative of the coupling function and on star's mass, for a given star there exist two…

广义相对论与量子宇宙学 · 物理学 2009-10-31 J. Novak

Optical spectropolarimeters can be used to produce maps of the surface magnetic fields of stars and hence to determine how stellar magnetic fields vary with stellar mass, rotation rate, and evolutionary stage. In particular, we now can map…

太阳与恒星天体物理 · 物理学 2015-05-20 S. G. Gregory

The eigen frequencies of radial pulsations of neutron stars are calculated in a strong magnetic field. At low densities we use the magnetic BPS equation of state(EOS) similar to that obtained by Lai and Shapiro while at high densities the…

天体物理学 · 物理学 2009-11-06 V. K. Gupta , Vinita Tuli , S. Singh , J. D. Anand , Ashok Goyal

We develop the formalism for computing the magnetic field within an axisymmetric neutron star with a strong Type II superconductor core surrounded by a normal conductor. The formalism takes full account of the constraints imposed by…

高能天体物理现象 · 物理学 2014-09-30 K. T. Henriksson , I. Wasserman

The luminosity and structure of neutron star magnetospheres are crucial to our understanding of pulsar and plerion emission. A solution found using the force-free approximation would be an interesting standard with which any model with more…

天体物理学 · 物理学 2009-11-11 Jonathan C. McKinney

Polarizability tensor of a strongly magnetized plasma and the polarization vectors and opacities of normal electromagnetic waves are studied for the conditions typical of neutron star atmospheres, taking account of partial ionization…

天体物理学 · 物理学 2009-11-10 A. Y. Potekhin , Dong Lai , G. Chabrier , W. C. G. Ho

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 idea has been spoken that any of Dirac and Pauli form factors of leptonic current includes both normal and anomalous components. From this point of view, the dependence of independent parts of charge and magnetic moment is established…

高能物理 - 唯象学 · 物理学 2010-12-09 Rasulkhozha S. Sharafiddinov

We review electrodynamics of rotating magnetized neutron stars, from the early vacuum model to recent numerical experiments with plasma-filled magnetospheres. Significant progress became possible due to the development of global…

高能天体物理现象 · 物理学 2016-12-14 Benoît Cerutti , Andrei Beloborodov

A strong electromagnetic field polarizes the vacuum and in the presence of an electric field creates pairs of a charged particle and its anti-particle. Magnetars, highly magnetized neutron stars with magnetic field comparable to or greater…

高能天体物理现象 · 物理学 2021-12-07 Chul Min Kim , Sang Pyo Kim

A recipe is presented to construct an analytic, self-consistent model of a non-barotropic neutron star with a poloidal-toroidal field of arbitrary multipole order, whose toroidal component is confined in a torus around the neutral curve…

高能天体物理现象 · 物理学 2015-01-26 Alpha Mastrano , Arthur George Suvorov , Andrew Melatos

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

I argue that the problem of electromagnetically driven electron-positron cascades in magnetospheres of neutron stars must be addressed starting from first principles. I describe a general numerical algorithm for doing self-consistent…

高能天体物理现象 · 物理学 2010-11-09 A. N. Timokhin

We study the effect of magnetic field on the dominant neutrino emission processes in neutron stars.The processes are first calculated for the case when the magnetic field does not exceed the critical value to confine electrons to the lowest…

高能物理 - 唯象学 · 物理学 2015-06-25 Ashok Goyal , V. K. Gupta , Kanupriya , Vinita Tuli

We study the dynamics of a charged particle in the field of a slowly rotating compact star in the gravitoelectromagnetic approximation to the geodesic equation . The star is assumed to be surrounded by an ideal, highly conducting plasma…

天体物理学 · 物理学 2009-11-10 Babur M. Mirza

We calculated the ellipticity of the deformed star due to the rotation or magnetic field. These two effects are compared to each other within general relativity. It turned out that the magnetic distortion is important for recently observed…

天体物理学 · 物理学 2011-05-23 K. Konno , T. Obata , Y. Kojima

The physics of neutron stars leads historically towards Landau's speculation. Even before the discovery of the neutron, he postulated the possible existence of stars more compact than white dwarfs, containing matter of the order of nuclear…

核理论 · 物理学 2020-12-11 Luiz L. Lopes , Debora P. Menezes

Vacuum instability of the strong electromagnetic field has been discussed since long time ago. The instability of the strong electric field due to creation of electron pairs is one of the examples, which is known as Schwinger process. What…

高能物理 - 唯象学 · 物理学 2016-10-19 Hyun Kyu Lee

Neutron stars are the endpoint of the life of intermediate mass stars and posses in their cores matter in the most extreme conditions in the universe. Besides their extremes of temperature (found in proto-neutron stars) and densities,…

高能天体物理现象 · 物理学 2018-06-07 R. O. Gomes , S. Schramm , V. Dexheimer