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Structure of Quark Stars [PDF]

open access: yesProceedings of the International Astronomical Union, 2012
AbstractThis paper gives an brief overview of the structure of hypothetical strange quarks stars (quark stars, for short), which are made of absolutely stable 3-flavor strange quark matter. Such objects can be either bare or enveloped in thin nuclear crusts, which consist of heavy ions immersed in an electron gas.
Weber, Fridolin   +3 more
openaire   +5 more sources

What Is the Nature of the HESS J1731-347 Compact Object?

open access: yesThe Astrophysical Journal, 2023
Once further confirmed in future analyses, the radius and mass measurement of HESS J1731-347 with $M={0.77}_{-0.17}^{+0.20}\,{M}_{\odot }$ and $R={10.4}_{-0.78}^{+0.86}\,\mathrm{km}$ will be among the lightest and smallest compact objects ever detected ...
Violetta Sagun   +5 more
doaj   +1 more source

Gravitational Waves from Strange Star Core–Crust Oscillation

open access: yesUniverse, 2022
According to the strange quark matter hypothesis, pulsars may actually be strange stars composed of self-bound strange quark matter. The normal matter crust of a strange star, unlike that of a normal neutron star, is supported by a strong electric field.
Ze-Cheng Zou   +2 more
doaj   +1 more source

Quark condensate and chiral symmetry restoration in neutron stars

open access: yesPhysics Letters B, 2022
Based on an equivparticle model, we investigate the in-medium quark condensate in neutron stars. Carrying out a Taylor expansion of the nuclear binding energy to the order of ρ3, we obtain a series of EOSs for neutron star matter, which are confronted ...
Hao-Miao Jin   +3 more
doaj   +1 more source

From quark stars to hybrid stars [PDF]

open access: yesPhysics Letters B, 2001
10 pages, 4 figures, 1 ...
DRAGO, Alessandro, A. Lavagno
openaire   +4 more sources

Dark matter effects on hybrid star properties

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In the present work, we investigate the effects of dark matter (DM) on hybrid star properties. We assume that dark matter is mixed with both hadronic and quark matter and interacts with them through the exchange of a Higgs boson.
C. H. Lenzi   +4 more
doaj   +1 more source

Strange Quark Star (SQS) in Tolman IV potential with density dependent B-parameter and charge

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
In this paper, the solutions of Einstein–Maxwell Field Equations for relativistic strange quark star in Tolman-IV potential considering MIT bag model EoS $$p=\frac{1}{3}(\rho -4B)$$ p = 1 3 ( ρ - 4 B ) of interior matter in presence of charge in higher ...
K. B. Goswami   +3 more
doaj   +1 more source

MASSIVE COMPACT STARS AS QUARK STARS [PDF]

open access: yesThe Astrophysical Journal, 2011
26 pages, 8 figures,The Astrophysical Journal (2011)
Hilario Rodrigues   +2 more
openaire   +4 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 core stars, quark stars and strange stars [PDF]

open access: yesZeitschrift f�r Physik C Particles and Fields, 1988
A recent one flavor (zero temperature) quark matter equation of state is generalized to several flavors. It is shown that quarks undergo a first order phase transition. In addition, this equation of state depends on few parameters, one in the two flavor case, two in the three flavor case, and these parameters can be constrained by phenomenology.
openaire   +3 more sources

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