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相关论文: Exploring the Impact of Extra Dimensions on Neutro…

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We analyze the influence of extra dimensions on the static equilibrium configurations and stability against radial perturbations. For this purpose, we solve stellar structure equations and radial perturbation equations, both modified for a…

广义相对论与量子宇宙学 · 物理学 2019-07-18 José D. V. Arbañil , Geanderson A. Carvalho , Ronaldo V. Lobato , Rubens M. Marinho , Manuel Malheiro

Regarding the strong magnetic field of neutron stars and high energy regime scenario which is based on high curvature region near the compact objects, one is motivated to study magnetic neutron stars in an energy dependent spacetime. In…

广义相对论与量子宇宙学 · 物理学 2017-10-11 B. Eslam Panah , G. H. Bordbar , S. H. Hendi , R. Ruffini , Z. Rezaei , R. Moradi

Regarding a $d-$dimensional spherically symmetric line element in the context of Einstein-$\Lambda$ gravity, the hydrostatic equilibrium equation of stars is obtained. Then, by using the lowest order constrained variational (LOCV) method…

广义相对论与量子宇宙学 · 物理学 2017-01-30 G. H. Bordbar , S. H. Hendi , B. Eslam Panah

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

We present the first numerical solutions of the coupled Einstein-Maxwell equations describing rapidly rotating neutron stars endowed with a magnetic field. These solutions are fully relativistic and self-consistent, all the effects of the…

广义相对论与量子宇宙学 · 物理学 2007-05-23 M. Bocquet , S. Bonazzola , E. Gourgoulhon , J. Novak

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

In this paper, we investigate the structure of neutron stars by considering both the effects of the cosmological constant and the existence of quark matter for neutron stars in Einstein's gravity. For this purpose, we use a suitable…

综合物理 · 物理学 2022-03-02 T. Yazdizadeh , G. H. Bordbar , B. Eslam Panah

We investigate the effect of a strong magnetic field on the structure of neutron stars in a model with perturbative $f(R)$ gravity. The effect of an interior strong magnetic field of about $10^{17 \sim 18}$ G on the equation of state is…

高能天体物理现象 · 物理学 2015-06-15 Myung-Ki Cheoun , Cemsinan Deliduman , Can Güngör , Vildan Keleş , C. Y. Ryu , Toshitaka Kajino , Grant J. Mathews

We investigate the effects of strong magnetic fields upon the gross properties of neutron and protoneutron stars. In our calculations, the neutron star matter was approximated by the pure neutron matter. Using the lowest order constrained…

太阳与恒星天体物理 · 物理学 2015-06-11 Gholam Hossein Bordbar , Zeinab Rezaei

The relativistic equations of hydrostatic equilibrium for a spherically symmetric star, or the Tolman-Oppenheimer-Volkoff equations are known in higher dimensions. In this paper, these equations have been expressed in terms of parameters of…

广义相对论与量子宇宙学 · 物理学 2020-10-21 Manjari Bagchi

The structure of neutron stars is considered from theoretical and observational perspectives. We demonstrate an important aspect of neutron star structure: the neutron star radius is primarily determined by the behavior of the pressure of…

天体物理学 · 物理学 2008-11-26 J. M. Lattimer , M. Prakash

We examine neutron star properties based on a model of dense matter composed of B=1 skyrmions immersed in a mesonic mean field background. The model realizes spontaneous chiral symmetry breaking non-linearly and incorporates scale-breaking…

核理论 · 物理学 2010-11-11 Prashanth Jaikumar , Manjari Bagchi , Rachid Ouyed

The profile of a neutron star probes a very large range of densities, from the density of iron up to several times the density of saturated nuclear matter, and thus no theory of hadrons can be considered reliable if extended to those…

核理论 · 物理学 2025-05-20 Francesca Sammarruca , Tomiwa Ajagbonna

We investigate the effects of strong magnetic fields on the equation of state of dense stellar neutrino-free and neutrino-trapped matter. Relativistic nuclear models both with constant couplings (NLW) and with density dependent parameters…

核理论 · 物理学 2010-04-22 A. Rabhi , C. Providencia

In this work the influence of the post-Newtonian corrections to the equations of stellar structure is analysed. The post-Newtonian Lane-Emden equation follows from the corresponding momentum density balance equation. From a polytropic…

广义相对论与量子宇宙学 · 物理学 2022-11-21 Gilberto Medeiros Kremer

We investigate the properties of the neutron star with relativistic mean field models. We incorporate in the quantum hadrodynamics and in the quark-meson coupling models a possible reduction of meson masses in nuclear matter. The equation…

核理论 · 物理学 2007-05-23 C. Y. Ryu , C. H. Hyun , S. W. Hong , B. K. Jennings

We investigate the impact of hyperons and phase transition to quark matter on the structural properties of neutron stars within the regularized four-dimensional Einstein-Gauss-Bonnet gravity (4DEGB). We employ the density-dependent…

核理论 · 物理学 2025-11-04 Ishfaq Ahmad Rather , Grigoris Panotopoulos

This study investigates the modeling of anisotropic magnetized static neutron stars within the framework of five-dimensional Einstein-Gauss-Bonnet (5D EGB) gravity. While Einstein's gravity has traditionally been employed to examine neutron…

广义相对论与量子宇宙学 · 物理学 2025-08-21 Mohammad Mazhari

We derive the modifications introduced by extra-spatial dimensions beyond the four dimensional spacetime on the macroscopic properties of neutron stars, which in turn affect the gravitational wave spectrum of their binaries. It turns out…

广义相对论与量子宇宙学 · 物理学 2020-04-30 Kabir Chakravarti , Sumanta Chakraborty , Khun Sang Phukon , Sukanta Bose , Soumitra SenGupta

In order to systematically examine the possible maximum mass of neutron stars, which is one of the important properties characterizing the physics in high-density region, I construct neutron star models by adopting phenomenological…

高能天体物理现象 · 物理学 2017-03-08 Hajime Sotani
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