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We made a detailed study of the properties of the electron layer near the quark surface of strange stars with strong ($\sim 10^{14}-10^{17}$G) magnetic fields. The electrostatic potential and the electric field at the quark surface were…

天体物理学 · 物理学 2007-05-23 Zheng Xiaoping , Yu Yunwei

In this paper we investigate the electrodynamic surface properties of bare strange quark stars. The surfaces of such objects are characterized by the formation of ultra-high electric surface fields which might be as high as $\sim 10^{19}$…

高能天体物理现象 · 物理学 2010-12-23 Rodrigo Picanço Negreiros , Igor N. Mishustin , Stefan Schramm , Fridolin Weber

Droplets of absolutely stable strange quark matter (strangelets) immersed in a lepton background may be the energetically preferred composition of strange star crusts and of the interior of a new class of stars known as strangelet dwarfs.…

核理论 · 物理学 2021-04-13 G. Lugones , A. G. Grunfeld

High energy density ($\eps$) and temperature (T) links general relativity and hydrodynamics leading to a lower bound for the ratio of shear viscosity ($\eta$) and entropy density ($s$). We get the interesting result that the bound is…

The surface electric characteristics of bare strange stars are investigated with the inclusion of boundary effects. The thickness of the electron layer where pairs can be spontaneously created is calculated as a function of the bag…

天体物理学 · 物理学 2009-11-07 Jian Hu , R. X. Xu

Surface effects in strange-quark matter play an important role for certain observables which have been proposed in order to identify strange stars, and color superconductivity can strongly modify these effects. We study the surface of color…

核理论 · 物理学 2009-09-29 Micaela Oertel , Michael Urban

We study the layer of electrons on bare strange star surfaces, taking the Dirac exchange-energy into account. Because electrons are fermions, the electron wave function must be of exchange-antisymmetry. The Dirac exchange-energy originates,…

天体物理学 · 物理学 2007-12-18 Hai-Chuan Guo , Ren-Xin Xu , Cheng-Min Zhang

We investigate the impact of magnetic fields on the electron distribution in the electrosphere of quark stars. For moderately strong magnetic fields $B\sim 10^{13}$G, quantization effects are generally weak due to the large number density…

高能物理 - 唯象学 · 物理学 2008-11-26 Prashanth Jaikumar

Using the Thomas-Fermi model, we investigated the electric characteristics of a static non-magnetized strange star without crust in this paper. The exact solutions of electron number density and electric field above the quark surface are…

天体物理学 · 物理学 2015-06-24 R. X. Xu , G. J. Qiao

The strange quark matter under strong magnetic fields and finite temperatures is studied in the framework of the MIT Bag model. Matter under such conditions is believed to be present in the core of dense astrophysical objects, like Neutron…

高能天体物理现象 · 物理学 2019-02-08 Ernesto López Fune

We reexamine the surface composition of strange stars. Strange quark stars are hypothetical compact stars which could exist if strange quark matter was absolutely stable. It is widely accepted that they are characterized by an enormous…

核理论 · 物理学 2007-05-23 Prashanth Jaikumar , Sanjay Reddy , Andrew W. Steiner

Strange quark matter could be found in the core of neutron stars or forming strange quark stars. As is well known, these astrophysical objects are endowed with strong magnetic fields which affect the microscopic properties of matter and…

天体物理学 · 物理学 2008-12-18 R. Gonzalez Felipe , A. Perez Martinez , H. Perez Rojas , M. Orsaria

In this article we have calculated the structure properties of a strange quark star in static model in the presence of a strong magnetic field using MIT bag model with a density dependent bag constant. To parameterize the density dependence…

高能物理 - 唯象学 · 物理学 2015-06-04 Gholam Hossein Bordbar , Hajar Bahri , Fatemeh Kayanikhoo

Strange quark matter in beta equilibrium at high densities is studied in a quark confinement model. Two equations of state are dynamically generated for the {\it same} set of model parameters used to describe the nucleon: one corresponds to…

天体物理学 · 物理学 2008-11-26 M. Malheiro , M. Fiolhais , A. R. Taurines

It has recently been pointed out that if the surface tension of quark matter is low enough, the surface of a strange star will be a crust consisting of a crystal of charged strangelets in a neutralizing background of electrons. This affects…

核理论 · 物理学 2008-11-26 Mark G. Alford , David A. Eby

We investigate the thermodynamic properties of strange quark matter under the strong magnetic field in the framework of the MIT bag model in two cases of bag constants. We consider two cases of the magnetic field, the uniform magnetic field…

核理论 · 物理学 2020-04-10 Fatemeh Kayanikhoo , Kazem Naficy , Gholam Hossein Bordbar

In this chapter we introduce a microscopic modelling of the surplus electrons on the plasma wall which complements the classical description of the plasma sheath. First we introduce a model for the electron surface layer to study the…

等离子体物理 · 物理学 2013-03-29 Rafael L. Heinisch , Franz X. Bronold , Holger Fehske

The gap caused by a strong electric field between the quark surface and nuclear crust of a strange star is studied in an improved model including gravity and pressure as well as electrostatic forces. The transition from gap to crust is…

天体物理学 · 物理学 2009-11-13 Morten Stejner , Jes Madsen

The quasiparticle model is extended to investigate the properties of strange quark matter in a strong magnetic field at finite densities. For the density-dependent quark mass, self-consistent thermodynamic treatment is obtained with an…

高能物理 - 唯象学 · 物理学 2012-08-08 Xin-Jian Wen , Shou-Zheng Su , Dong-Hong Yang , Guang-Xiong Peng

We construct strangelets, taking into account electrostatic effects, including Debye screening, and arbitrary surface tension sigma of the interface between vacuum and quark matter. We find that there is a critical surface tension…

高能物理 - 唯象学 · 物理学 2009-11-11 Mark G. Alford , Krishna Rajagopal , Sanjay Reddy , Andrew Steiner
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