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相关论文: Electronic screening and damping in magnetars

200 篇论文

Neutrino scattering on electrons is considered as a tool for laboratory searches of the neutrino magnetic moment. We study inelastic $\bar\nu_ee^-$-scattering on electrons bound in the germanium (Z=32) and iodine (Z=53) atoms for…

高能物理 - 唯象学 · 物理学 2009-10-31 S. A. Fayans , L. A. Mikaelyan , V. V. Sinev

We have investigated the local magneto-transport in high-quality 2D electron systems at low carrier densities. The positive magneto-resistance in perpendicular magnetic field in the strongly insulating regime has been measured to evaluate…

介观与纳米尺度物理 · 物理学 2009-11-10 A. Ghosh , M. Pepper , H. E. Beere , D. A. Ritchie

We discuss the effects of a strong magnetic field in Quantum Wires. We show how the presence of a magnetic field modifies the role played by % which %coefficients corresponding to electron electron interaction % and the Fermi velocity…

强关联电子 · 物理学 2009-11-11 S. Bellucci , P. Onorato

Dense plasma environment affects the electronic structure of ions via variations of the microscopic electrical fields, also known as plasma screening. This effect can be either estimated by simplified analytical models, or by…

The structure of atomic levels originating from the lowest Landau level in a superstrong magnetic field is analyzed. The influence of the screening of the Coulomb potential on the values of critical nuclear charge is studied.

高能物理 - 唯象学 · 物理学 2017-08-23 M. I. Vysotsky

The strength of neutron star crust is crucial for modelling magnetar flares, pulsar glitches and gravitational wave emission. We aim to shed some light on this problem by analysing uniaxial stretch deformation (elongation and contraction)…

高能天体物理现象 · 物理学 2018-10-26 D. A. Baiko , A. I. Chugunov

A phase transition from paramagnetism to ferromagnetism in neutron star interior is explored. Since there is $^3$P$_2$ neutron superfluid in neutron star interior, it can be treated as a system of magnetic dipoles. Under the presence of…

高能天体物理现象 · 物理学 2009-11-12 Qiu He Peng , Hao Tong

We study the magnetic orbital response of a system of N interacting electrons confined in a two-dimensional geometry and subjected to a perpendicular magnetic field in the finite temperature Hartree-Fock approximation. The electron-electron…

介观与纳米尺度物理 · 物理学 2009-01-23 L. G. G. V. Dias da Silva , Caio H. Lewenkopf , Nelson Studart

We study electrical and thermal conductivities of degenerate electrons emitting and absorbing phonons in a strongly magnetized crystalline neutron star crust. We take into account modification of the phonon spectrum of a Coulomb solid of…

高能天体物理现象 · 物理学 2016-03-23 D. A. Baiko

We study the role of the effective Coulomb interaction strength and length on the dynamics of nucleons in conditions according to those in a neutron star's crust. Calculations were made with a semi-classical molecular dynamics model,…

核理论 · 物理学 2014-05-14 P. N. Alcain , P. A. Giménez Molinelli , J. I. Nichols , C. O. Dorso

We study the magnetosphere of a slowly rotating magnetized neutron star subject to toroidal oscillations in the relativistic regime. Under the assumption of a zero inclination angle between the magnetic moment and the angular momentum of…

高能天体物理现象 · 物理学 2015-05-18 V. S. Morozova , B. J. Ahmedov , O. Zanotti

Practical expressions are derived for evaluation of electrical and thermal conductivities and thermopower of degenerate electrons in the outer envelopes of neutron stars with magnetic fields. All tensor components of the kinetic…

天体物理学 · 物理学 2007-05-23 A. Y. Potekhin

The crust of a neutron star (NS) provides a unique laboratory for studying matter under extreme density and magnetic field conditions that cannot be realized in terrestrial experiments. However, direct observational constraints on its…

高能天体物理现象 · 物理学 2026-05-22 Sheng-Lun Xie , Yun-Wei Yu , Shao-Lin Xiong , Wang-Chen Xue

Electron-electron interactions generally reduce the low temperature resistivity due to the screening of the impurity potential by the electron gas. In the weak-coupling limit, the magnitude of this screening effect is determined by the…

强关联电子 · 物理学 2009-11-10 D. Tanaskovic , V. Dobrosavljevic , E. Abrahams , G. Kotliar

Signatures of multi-keV LMN dielectronic resonances in highly-charged 3d^n ions of tungsten were detected in the intensity ratios of extreme-ultraviolet magnetic-dipole lines within ground configurations. The measurements were performed…

原子物理 · 物理学 2013-10-15 Yu. Ralchenko , J. D. Gillaspy

We study the plasma correlation effects on nonresonant thermonuclear reactions of carbon and oxygen in the interiors of white dwarfs and liquid envelopes of neutron stars. We examine the effects of electron screening on thermodynamic…

太阳与恒星天体物理 · 物理学 2012-10-17 A. Y. Potekhin , G. Chabrier

We advance a "Solar flare" model of magnetar activity, whereas a slow evolution of the magnetic field in the upper crust, driven by electron MHD (EMHD) flows, twists the external magnetic flux tubes, producing persistent emission, bursts…

高能天体物理现象 · 物理学 2015-06-22 Maxim Lyutikov

The surfaces of neutron stars are likely sources of strongly polarized soft X rays due to the presence of strong magnetic fields. Scattering transport in the surface layers is critical to the determination of the emergent anisotropy of…

高能天体物理现象 · 物理学 2023-03-15 Kun Hu , Matthew G. Baring , Joseph A. Barchas , George Younes

A new magnetic field generation mechanism in electrostatic shocks is found, which can produce fields with magnetic energy density as high as 0.01 of the kinetic energy density of the flows on time scales $ \tilde \, 10^4 \,…

等离子体物理 · 物理学 2015-06-22 A. Stockem , T. Grismayer , R. A. Fonseca , L. O. Silva

Binary collisions between ions and electrons in an external magnetic field are considered in second-order perturbation theory, starting from the unperturbed helical motion of the electrons. The calculations are done with the help of an…

等离子体物理 · 物理学 2007-05-23 Hrachya B. Nersisyan