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

200 篇论文

Highly magnetized neutron stars are promising candidates to explain some of the most peculiar astronomical phenomena, for instance, fast radio bursts, gamma-ray bursts, and superluminous supernovae. Pulsations of these highly magnetized…

高能天体物理现象 · 物理学 2023-03-13 Man Yin Leung , Anson Ka Long Yip , Patrick Chi-Kit Cheong , Tjonnie Guang Feng Li

The ohmic decay of magnetic fields confined within the crust of neutron stars is considered by incorporating the effect of space-time curvature produced by the intense gravitational field of the star. It is shown that general relativistic…

天体物理学 · 物理学 2009-10-30 Sujan Sengupta

The equations of state for degenerate electron and neutron gases are studied in the presence of magnetic fields. After including quantum effects to study the structural properties of these systems, it is found that some hypermagnetized…

天体物理学 · 物理学 2009-11-07 R. Gonzalez Felipe , H. J. Mosquera Cuesta , A. Perez Martinez , H. Perez Rojas

We study the effect of a magnetic field on the strage quark matter and apply to strange star. We found that the strange star becomes more compact in presence of strong magnetic field.

高能物理 - 唯象学 · 物理学 2009-10-28 S. Chakrabarty , P. K. Sahu

Magnetic fields play an important role at all stages of stellar evolution. In Sun-like stars, they are generated in the outer convective layers. Studying the large-scale magnetic fields of these stars enlightens our understanding of the…

太阳与恒星天体物理 · 物理学 2015-06-17 R. Fares

The magnetic fields of neutron stars have a large range (~3e10 - 1e15 G). There may be a tendency for more highly magnetized neutron stars to come from more massive stellar progenitors, but other factors must also play a role. When combined…

高能天体物理现象 · 物理学 2015-05-20 Roger A. Chevalier

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

In this paper, an approximate method of calculating the Fermi energy of electrons ($E_{F}(e)$) in a high-intensity magnetic field, based on the analysis of the distribution of a neutron star magnetic field, has been proposed. In the…

高能天体物理现象 · 物理学 2013-09-03 Z. F. Gao , N. Wang , D. L. Song , J. P. Yuan , C. K. Chou

We investigate the chiral magnetic instability in the crust of a neutron star as a potential mechanism for amplifying magnetic fields. This instability may become active when small deviations from chemical equilibrium are sustained over…

高能天体物理现象 · 物理学 2024-08-13 Clara Dehman , José A. Pons

We study consistently the effects of magnetic field on hot and dense matter. In particular, we look for differences that arise due to assumptions that reproduce the conditions produced in particle collisions or astrophysical scenarios, such…

核理论 · 物理学 2023-09-28 J. Peterson , P. Costa , R. Kumar , V. Dexheimer , R. Negreiros , C. Providencia

We review the polarization properties of X-ray emission from highly magnetized neutron stars, focusing on emission from the stellar surfaces. We discuss how x-ray polarization can be used to constrain neutron star magnetic field and…

高能天体物理现象 · 物理学 2016-06-01 Dong Lai , Wynn C. G. Ho , Matthew van Adelsberg , Chen Wang , Jeremy S. Heyl

Magnetic fields play an important role in producing and modifying the photospheric chemical peculiarities of intermediate-mass main sequence stars. This article discusses the basic theory and methods of measurement used to detect and…

天体物理学 · 物理学 2007-05-23 G. A. Wade

Neutron stars are natural physical laboratories allowing us to study a plethora of phenomena in extreme conditions. In particular, these compact objects can have very strong magnetic fields with non-trivial origin and evolution. In many…

高能天体物理现象 · 物理学 2021-09-14 Andrei P. Igoshev , Sergei B. Popov , Rainer Hollerbach

We discuss neutron stars with strong magnetic mean fields in the framework of Extended Theories of Gravity. In particular, we take into account models derived from $f(R)$ and $f(\cal G)$ extensions of General Relativity where functions of…

广义相对论与量子宇宙学 · 物理学 2015-06-22 Artyom V. Astashenok , Salvatore Capozziello , Sergei D. Odintsov

It is generally believed that magnetic fields of some neutron stars, the so-called magnetars, are enormously strong, up to 10^{14} - 10^{15} G. Recent investigations have shown that the atmospheres of magnetars are possibly composed of…

天体物理学 · 物理学 2009-11-11 George G. Pavlov , Victor G. Bezchastnov

The evolution of the magnetic field is investigated for isolated as well as binary neutron stars. The overall nature of the field evolution is seen to be similar for an initial crustal field and an expelled flux. The major uncertainties of…

天体物理学 · 物理学 2007-05-23 Sushan Konar , Dipankar Bhattacharya

We review the current state of knowledge of magnetic fields inside stars, concentrating on recent developments concerning magnetic fields in stably stratified (zones of) stars, leaving out convective dynamo theories and observations of…

太阳与恒星天体物理 · 物理学 2017-04-11 J. Braithwaite , H. C. Spruit

After a short introduction on how we get information of the magnetic fields from radio observations I discuss the results concerning the magnetic field structure in galaxies: Large-scale regular magnetic field pattern of spiral structure…

天体物理学 · 物理学 2007-05-23 M. Krause

In the present work, with the help of fully 3-D smooth particle magnetohydodynamic (SPMHD) simulations, we explore the nonlinear effects of magnetic fields (in close equipartition with the gas) in the structure of radiatively cooling,…

天体物理学 · 物理学 2007-05-23 Elisabete M. de Gouveia Dal Pino , Adriano H. Cerqueira

In this Letter, we report a realistic calculation of the magnetic field profile for the equation of state inside strongly magnetized neutron stars. Unlike previous estimates, which are widely used in the literature, we find that magnetic…

高能天体物理现象 · 物理学 2017-10-11 V. Dexheimer , B. Franzon , R. O. Gomes , R. L. S. Farias , S. S. Avancini , S. Schramm