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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…

Astrophysics · Physics 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 $\sim 10^{19}$…

High Energy Astrophysical Phenomena · Physics 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.…

Nuclear Theory · Physics 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…

Astrophysics · Physics 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…

Nuclear Theory · Physics 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,…

Astrophysics · Physics 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…

High Energy Physics - Phenomenology · Physics 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…

Astrophysics · Physics 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…

High Energy Astrophysical Phenomena · Physics 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…

Nuclear Theory · Physics 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…

Astrophysics · Physics 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…

High Energy Physics - Phenomenology · Physics 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…

Astrophysics · Physics 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…

Nuclear Theory · Physics 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…

Nuclear Theory · Physics 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…

Plasma Physics · Physics 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…

Astrophysics · Physics 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…

High Energy Physics - Phenomenology · Physics 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…

High Energy Physics - Phenomenology · Physics 2009-11-11 Mark G. Alford , Krishna Rajagopal , Sanjay Reddy , Andrew Steiner
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