Results 11 to 20 of about 203,600 (192)

Hybrid stars with large strange quark cores [PDF]

EPJ 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, Câmara Pereira Renan, Providência Constança   +2 more
doaj   +2 more sources

The quark strange star in the enlarged Nambu-Jona-Lasinio model [PDF]

NewJ.Phys.4:14,2002, 2002
The strange quark star is investigated within the enlarged SU(3) Nambu-Jona-Lasinio (NJL). The stable quark star exists till maximal configutation with rho_m=3.1, 10^15, g/cm^3 with M_m=1.61, M_Sun and R_m=8.74, km is reached. Strange quarks appear for density above rho_c=9.84 g/cm^3 for the quark star with radius R_c=8.003 km and M_c=0.77, M_Sun.
R. Mańka, Ilona Bednarek, Grzegorz Przybyła   +2 more
arxiv   +3 more sources

Generation of Electric Current by Magnetic Field at the Boundary: Quantum Scale Anomaly Versus Semiclassical Meissner Current Outside of the Conformal Limit

Advanced Physics Research, EarlyView., 2023
The paper discusses the role of scale anomaly in generating edge electric currents via the scale magnetic effect in scalar electrodynamics. Although the boundary electric current is much weaker than the Meissner current induced in superconducting materials, the scale anomaly can enhance conductivity near the boundary of the material.
Maxim Chernodub, Vladimir Goy, Alexander Molochkov   +2 more
wiley   +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, R. Roy, A. Saha, P. K. Chattopadhyay   +3 more
doaj   +1 more source

Quark Star Mergers: The Equation of State of Decompressed Quark Matter and Observational Signatures [PDF]

arXiv
Quark stars are challenging to confirm or exclude observationally because they can have similar masses and radii as neutron stars. By performing the first calculation of the non-equilibrium equation of state of decompressed quark matter at finite temperature, we determine the properties of the ejecta from binary quark-star or quark star-black hole ...
Zhiqiang Miao, Zhenyu Zhu, Dong Lai
openalex   +2 more sources

The impact of 60 days of ‐6° head down tilt bed rest on mitochondrial content, respiration and regulators of mitochondrial dynamics

The Journal of Physiology, EarlyView., 2023
Abstract figure legend Reductions in skeletal muscle mitochondrial respiration following 60 days of bed rest explained by a decrease in mitochondrial content, but resulting in an increase in OPA1 and Drp1 mediated mitochondrial fission. Abstract It is unclear how skeletal muscle metabolism and mitochondrial function adapt to long duration bed rest and ...
John Noone, Anthony Damiot, Helena Kenny, Isabelle Chery, Alexandre Zahariev, Sylvie Normand, François Crampes, Isabelle de Glisezinski, Keith D. Rochfort, Claire Laurens, Marie‐Pierre Bareille, Chantal Simon, Audrey Bergouignan, Stéphane Blanc, Donal J. O'Gorman   +14 more
wiley   +1 more source

Strange quark mass dependence of strange quark star properties

European Physical Journal C: Particles and Fields, 2021
The effects of strange quark mass on masses, radii, and tidal deformabilities of strange quark stars are studied via the quasiparticle model that includes the non-perturbative features of QCD in low density region. The constraints of $$M_{\mathrm {TOV}} >
Bo-Lin Li, Yan Yan, Jia-Lun Ping
doaj   +1 more source

Why can hadronic stars convert into strange quark stars with larger radii [PDF]

Phys. Rev. D 102, 063003 (2020), 2020
The total binding energy of compact stars is the sum of the gravitational binding energy $(BE)_g$ and the nuclear binding energy $(BE)_n$, the last being related to the microphysics of the interactions. While the first is positive (binding) both for hadronic stars and for strange quark stars, the second is large and negative for hadronic stars (anti ...
arxiv   +1 more source

Properties of strange quark matter and strange quark stars

European 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

Isovector properties of quark matter and quark stars in an isospin-dependent confining model [PDF]

Phys. Rev. D 96, 083019 (2017), 2017
The confining quark matter (CQM) model, in which the confinement and asymptotic freedom are modeled via the Richardson potential for quark-quark vector interaction and the chiral symmetry restoration at high density is described by the density dependent quark mass, is extended to include isospin dependence of the quark mass.
arxiv   +1 more source