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相关论文: Magnetization of neutron star matter

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If cosmic background neutrinos interact very weakly with each other, through spin-spin interactions, then they may have experienced a phase transition, leading to a ferromagnetic ordering. The small magnetic field resulting from…

高能物理 - 唯象学 · 物理学 2014-07-11 Paola Arias , Jorge Gamboa , Justo Lopez-Sarrion

We investigate the leading order correction of anomalous magnetic moment (AMM) to the electron in weak magnetic field and find that the magnetic correction is negative and magnetic field dependent, indicating a magnetic catalysis effect for…

高能物理 - 唯象学 · 物理学 2022-05-25 Fan Lin , Mei Huang

Recently the new model for the generation of strong large scale magnetic fields in neutron stars, driven by the parity violating interaction, was proposed. In this model, the magnetic field instability results from the modification of the…

高能物理 - 唯象学 · 物理学 2016-08-18 Maxim Dvornikov

Well before the radio discovery of pulsars offered the first observational confirmation for their existence (Hewish et al., 1968), it had been suggested that neutron stars might be endowed with very strong magnetic fields of…

高能天体物理现象 · 物理学 2019-02-18 Konstantinos N. Gourgouliatos , Paolo Esposito

Dark Matter constitutes most of the matter in the presently accepted cosmological model for our Universe. The extreme conditions of ordinary baryonic matter, namely high density and compactness, in Neutron Stars make these objects suitable…

高能天体物理现象 · 物理学 2017-10-20 M. Cermeño , M. Ángeles Pérez-García , Joseph Silk

The sensitivity of nuclear symmetry energy elements at the saturation density to the binding energies of ultra neutron-rich nuclei (neutron to proton ratio $\sim$ 2) and the maximum mass of neutron star is explored within a relativistic…

核理论 · 物理学 2016-06-03 C. Mondal , B. K. Agrawal , J. N. De , S. K. Samaddar

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

We study the neutrino spin oscillations, i.e., neutrino spin precession caused by the neutrino interaction with matter polarized by external magnetic field (or, equivalently, by the interaction of the induced magnetic moment (IMM) of a…

高能物理 - 唯象学 · 物理学 2019-09-06 A. Grigoriev , E. Kupcheva , A. Ternov

With regard to the coupling constant and the strong magnetic field of neutron stars, we have studied these stars in the 4D Einstein Gauss Bonnet (4D EGB) gravity model in order to grasp a better understanding of these objects. In this…

广义相对论与量子宇宙学 · 物理学 2024-02-23 Gholam Hossein Bordbar , Mohammad Mazhari , Ahmad Poostforush

Dark matter, one of the important portion of the universe, could affect the visible matter in neutron stars. An important physical feature of dark matter is due to the spin of dark matter particles. Here, applying the piecewise polytropic…

高能物理 - 唯象学 · 物理学 2018-04-19 Zeinab Rezaei

Observations indicate that magnetic fields on neutron stars span at least the range $10^{8-15}$ G, corresponding to a range of magnetic fluxes similar to that found in white dwarfs and main sequence stars. The observational evidence is…

天体物理学 · 物理学 2007-05-23 Andreas Reisenegger

The sensitivity of the differential cross section of the interaction between neutrino-electron with dense matter to the possibly nonzero neutrino electromagnetic properties has been investigated. Here, the relativistic mean field model…

核理论 · 物理学 2008-11-26 A. Sulaksono , C. K. Williams , P. T. P. Hutauruk , T. Mart

Neutron stars enable us to study both the highest densities and the highest magnetic fields in the known Universe. In this article I review what can be learned about such fundamental physics using magnetar bursts. Both the instability…

高能天体物理现象 · 物理学 2012-06-26 Anna L. Watts

We compute the variation of the masses of the proton and the neutron induced by the presence of a strong external magnetic field. We discuss the choice of the wave function and different techniques how to apply the magnetic field. The…

高能物理 - 格点 · 物理学 2009-10-28 H. R. Rubinstein , S. Solomon , T. Wittlich

Strongly magnetized symmetric nuclear matter is investigated within the context of effective baryon-meson exchange models. The magnetic field is coupled to the charge as well as the dipole moment of the baryons by including the appropriate…

核理论 · 物理学 2013-07-02 J. P. W. Diener , F. G. Scholtz

Neutrino interactions play a central role in transport and flavor evolution in the ejecta of binary neutron star mergers. Simulations suggest that neutron star mergers may produce magnetic fields as strong as $10^{17}$ G, but computational…

高能天体物理现象 · 物理学 2026-04-10 Mia Kumamoto , Catherine Welch

The magnetic field generated by a bound muon in heavy muonic atoms results in an induced nuclear magnetic dipole moment even for otherwise spinless nuclei. This dipole moment interacts with the muon, altering the binding energy of the…

原子物理 · 物理学 2023-09-22 K. A. Beyer , N. S. Oreshkina

The coupling between axions and photons modifies Maxwell's equations, introducing a dynamo term in the magnetic induction equation. In neutron stars, for critical values of the axion decay constant and axion mass, the magnetic dynamo…

高能天体物理现象 · 物理学 2023-03-01 Filippo Anzuini , José A. Pons , Antonio Gómez-Bañón , Paul D. Lasky , Federico Bianchini , Andrew Melatos

It is shown that the spontaneous magnetization occurs due to the anomalous magnetic moments of quarks in the high-density quark matter under the tensor-type four-point interaction. The spin polarized condensate for each flavor of quark…

高能物理 - 唯象学 · 物理学 2015-10-14 Y. Tsue , J. da Providencia , C. Providencia , M. Yamamura , H. Bohr

We study the magnetic field generation in a neutron star within the model based on the magnetic field instability in the nuclear matter owing to the electron-nucleon parity violating interaction. We suggest that the growing magnetic field…

高能天体物理现象 · 物理学 2015-10-16 Maxim Dvornikov , Victor B. Semikoz