Results 21 to 30 of about 1,287 (235)

Burning of a Hadronic Star into a Quark or a Hybrid Star [PDF]

open access: yesThe Astrophysical Journal, 2007
47 pages, 23 figures New version after referee's comments.
DRAGO, Alessandro   +2 more
openaire   +3 more sources

Hybrid stars with large strange quark cores [PDF]

open access: yesEPJ Web of Conferences, 2022
The possible existence of hybrid stars is studied using several multiquark interaction channels. The hadronic phase consists of an equation of state (EoS) with presently accepted nuclear matter properties and the quark model is constrained by the vacuum ...
Ferreira Márcio   +2 more
doaj   +1 more source

QUARK MATTER SYMMETRY ENERGY AND QUARK STARS [PDF]

open access: yesThe Astrophysical Journal, 2013
We extend the confined-density-dependent-mass (CDDM) model to include isospin dependence of the equivalent quark mass. Within the confined-isospin-density-dependent-mass (CIDDM) model, we study the quark matter symmetry energy, the stability of strange quark matter, and the properties of quark stars.
Chu, Peng-Cheng, Chen, Lie-Wen
openaire   +2 more sources

A polytropic model of quark stars [PDF]

open access: yesAstroparticle Physics, 2009
17 pages, 4 figures, last version accepted for publication in Astroparticle ...
Lai, X. Y., Xu, R. X.
openaire   +2 more sources

Properties of strange quark matter and strange quark stars

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
A Polyakov chiral $$\text {SU(3)}$$ SU(3) quark mean-field (PCQMF) model is applied to study the properties of strange quark matter (SQM) and strange quark star (SQS) in $$\beta $$ β -equilibrium.
Manisha Kumari, Arvind Kumar
doaj   +1 more source

Model study of a quark star [PDF]

open access: yesPhysical Review D, 2011
14 pages, 6 figures, 1 ...
Li, Hua   +3 more
openaire   +2 more sources

Quakes in solid quark stars [PDF]

open access: yesAstroparticle Physics, 2004
A starquake mechanism for pulsar glitches is developed in the solid quark star model. It is found that the general glitch natures (i.e., the glitch amplitudes and the time intervals) could be reproduced if solid quark matter, with high baryon density but low temperature, has properties of shear modulus = 10^{30~34} erg/cm^3 and critical stress _c =
Zhou, A. Z.   +4 more
openaire   +2 more sources

Dense hadron star in quark degree of freedom

open access: yesEPJ Web of Conferences, 2014
The quark degree of freedom may play an important role as one studies dense hadron stars which can help to understand the universe origin. We add a temperature dependence to the effective quark mass adopted from a quark-quark interaction on the QCD basis
Tzeng Yiharn, Tzeng S.Y.Tsay
doaj   +1 more source

Three-layered compact star in modified Buchdahl-I spatial metric with distinct equations of state

open access: yesPhysics Letters B, 2023
We present a singularity free and smoothly connected complete solution for a three-layered compact star with deconfined quark matter core surrounded by coherent quantum fluid of a Bose-Einstein condensate, all enclosed under a thin envelope of a ...
Shweta Saklany   +2 more
doaj   +1 more source

ANALYTICAL MODELS FOR QUARK STARS [PDF]

open access: yesInternational Journal of Modern Physics D, 2007
We find two new classes of exact solutions to the Einstein–Maxwell system of equations. The matter content satisfies a linear equation of state consistent with quark matter; a particular form of one of the gravitational potentials is specified to generate solutions.
Komathiraj, K., Maharaj, S.D.
openaire   +3 more sources

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