Results 11 to 20 of about 1,287 (235)
What Is the Nature of the HESS J1731-347 Compact Object?
The 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
Universe, 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 core stars, quark stars and strange stars [PDF]
Zeitschrift f�r Physik C Particles and Fields, 1989 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
Quark star matter in heavy quark stars
European Physical Journal C: Particles and Fields, 2021 We study the thermodynamic properties of asymmetric quark matter and large mass quark stars within the confined-isospin-density-dependent-quark-mass model. We find that the quark matter symmetry energy should be very large in order to describe the recent
Peng-Cheng Chu +6 more
doaj +1 more source
From quark stars to hybrid stars [PDF]
Physics Letters B, 2001 10 pages, 4 figures, 1 ...
DRAGO, Alessandro, A. Lavagno
openaire +3 more sources
MASSIVE COMPACT STARS AS QUARK STARS [PDF]
The Astrophysical Journal, 2011 26 pages, 8 figures,The Astrophysical Journal (2011)
Rodrigues, Hilario +2 more
openaire +2 more sources
Quark condensate and chiral symmetry restoration in neutron stars
Physics 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
Dark matter effects on hybrid star properties
European 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
European 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
Quark-quark interaction and quark matter in neutron stars [PDF]
Physical Review C, 2022 Hyperon ($Y$) mixing in neutron-star matter brings about a remarkable softening of the equation of state (EoS) and the maximum mass is reduced to a value far less than $2M_{\odot}$. One idea to avoid this "hyperon puzzle in neutron stars" is to assume that the many-body repulsions work universally for every kind of baryons.
Y. Yamamoto, N. Yasutake, Th. A. Rijken
openaire +4 more sources