Results 71 to 80 of about 41,993 (168)

The peculiar case of the "double-humped" super-luminous supernova SN2006oz

open access: yes, 2012
SN2006oz is a super-luminous supernova with a mysterious bright precursor that has resisted explanation in standard models. However, such a precursor has been predicted in the dual-shock quark nova (dsQN) model of super-luminous supernovae -- the ...
Leahy, Denis, Ouyed, Rachid
core   +1 more source

Thickness of the strangelet-crystal crust of a strange star

open access: yes, 2008
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.
Alford, Mark G., Eby, David A.
core   +1 more source

RIGIDLY ROTATING STRANGE QUARK STARS

open access: yesInternational Journal of Modern Physics D, 2005
In this article, we study rotating strange quark stars in the context of general relativity. For this purpose we consider perfect fluid model composed of strange quark matter with electromagnetic field in the Gödel Universe which has rigid rotation. We solve Einstein's field equations by using equation of state for strange quark matter.
Baysal, HÜSNÜ, Yilmaz, I
openaire   +3 more sources

Extended quark mean-field model for neutron stars

open access: yes, 2014
We extend the quark mean-field (QMF) model to strangeness freedom to study the properties of hyperons ($\Lambda,\Sigma,\Xi$) in infinite baryon matter and neutron star properties.
Hu, J. N.   +4 more
core   +1 more source

Quark nova inside supernova: Application to GRBs and XROs

open access: yes, 2009
In this paper we consider a quark nova occurring inside an exploding star. The quark nova ejecta will shock when interacting with the stellar envelope. When this shock reaches the surface of the star, the energy is radiated away.
Ouyed, Rachid, Staff, Jan
core  

Quark Matter and Quark Stars [PDF]

open access: yesProceedings of the Workshop on Quarks and Compact Stars 2017 (QCS2017), 2018
Guangxiong Peng   +2 more
openaire   +1 more source

Stars and quark stars in bumblebee gravity

open access: yesAnnals of Physics
In this work, the interior spacetime of stars is built in a Lorentz symmetry breaking model called bumblebee gravity. Firstly, we calculated the modified Tolman-Oppenheimer-Volkoff equation in this context of modified gravity. Then we show that the bumblebee field, responsible for the symmetry breaking, increases the star mass-radius relation when it ...
Juliano C.S. Neves, Fernando G. Gardim
openaire   +2 more sources

On the conversion of neutron stars into quark stars

open access: yesEPJ Web of Conferences, 2014
The possible existence of two families of compact stars, neutron stars and quark stars, naturally leads to a scenario in which a conversion process between the two stellar objects occurs with a consequent release of energy of the order of $10^{53}$ erg.
openaire   +3 more sources

SCQGP in quark stars

open access: yesThe European Physical Journal C, 2012
From an analogy with non-relativistic degenerate QED plasma we make an estimate of the coupling strength of QGP hypothesized to be present in compact star interiors. At densities ranging from 3ρ 0–10ρ 0 (normal nuclear density ρ 0=0.16 fm−3), quark matter is found to be strongly to intermediately coupled.
Sineeba Ramadas, Vishnu M. Bannur
openaire   +1 more source

Strongly interacting quark matter in massive quark stars

open access: yesClassical and Quantum Gravity
Abstract This paper investigates the properties of strongly coupled matter at high baryon densities (ρ B) in quark stars (QSs). The QS model is based on the density-dependent quark mass (DDQM) framework, modified DDQM (MDDQM) by enhancing the single-gluon interaction to generate higher repulsive pressure.
Adamu Issifu   +4 more
openaire   +2 more sources

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