Quark stars within relativistic models
arXiv:astro-ph/0507529 · doi:10.1088/0954-3899/32/8/001
Abstract
Lately, it has been suggested that strange (quark) stars can be responsible for glitches and other observational features of pulsars. Some discussions on whether quark stars, if really exist, are bare or crusted are also a source of controversy in the recent literature. In the present work we use the Nambu-Jona-Lasinio model, known to incorporate chiral symmetry, necessarily present in the QCD formalism, in order to describe quark star properties. We compare our results for the stars and the features of the model with the much simpler model normally used in the description of strange stars, namely the MIT bag model. We also investigate the differences in the stellar properties which arise due to the presence of the crust. We show that the NJL model produces results which are somewhat different as compared with the MIT model.
12 pages,10 figures, 1 table
References in corpus (32)
- QCD Phenomenology based on a Chiral Effective Lagrangian
- NJL-model analysis of dense quark matter
- Composition and Structure of Protoneutron Stars
- Color superconducting quark matter
- The Quark-Gluon Plasma in Equilibrium
- Gravitationally redshifted absorption lines in the X-ray burst spectra of a neutron star
- Is SAX J1808.4-3658 a Strange Star ?
- Inverse meson mass ordering in color-flavor-locking phase of high density QCD
- Discovery of absorption features in the X-ray spectrum of an isolated neutron star
- Compact stars with color superconducting quark matter
- Quark deconfinement and implications for the radius and the limiting mass of compact stars
- Color-flavor locked strange matter
- Inverse meson mass ordering in color-flavor-locking phase of high density QCD: erratum
- Bare Quark Matter Surfaces of Strange Stars and Emission
- Strange quark matter with dynamically generated quark masses
- Neutron stars and quark phases in the NJL model
- Strange quark stars within the Nambu-Jona-Lasinio model
- High-density QCD pairing in compact star structure
- On the nature of the compact star in 4U 1728-34
- Thermal emission from bare quark matter surfaces of hot strange stars
- Is GRO J1744-28 a Strange Star?
- Nonstrange hybrid compact stars with color superconducting matter
- Warm stellar matter with deconfinement: application to compact stars
- Hybrid stars in the quark-meson coupling model with superconducting quark matter
- Kaon condensation in the quark-meson coupling model and compact stars
- Warm stellar matter with neutrino trapping
- A note on the discovery of absorption features in 1E 1207.4-5209
- Structure of pair winds from compact objects with application to emission from hot bare strange stars
- Stellar matter in the Quark-Meson-Coupling Model with neutrino trapping
- The importance of strange mesons in neutron star properties
- Strange star equations of state revisited
- The quark strange star in the enlarged Nambu-Jona-Lasinio model
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- The influence of strong magnetic fields on proto-quark stars
- Combined Rastall and Rainbow theories of gravity with applications to neutron stars
- Stability windows for proto-quark stars
- Quark matter equation of state and stellar properties
- Quark stars under strong magnetic fields
- A Neutron Star is born
- Continuous gravitational wave from magnetized white dwarfs and neutron stars: possible missions for LISA, DECIGO, BBO, ET detectors
- Lepton effects on the proto-neutron stars with the hadron-quark mixed phase in the Nambu-Jona-Lasinio model
- Quark matter revisited with non extensive MIT bag model
- General relativistic polytropes in anisotropic stars
- Connecting neutron star observations to the high density equation of state of quasi-particle model
- Quark matter under strong magnetic field in chiral models
- Isovector properties of quark matter and quark stars in an isospin-dependent confining model
- The importance of the mixed phase in hybrid stars built with the Nambu-Jona-Lasinio model
- Bag model and quark star
- Erratum: Anisotropy in the EoS of Magnetized Quark Matter [Phys Rev C91, 065205 (2015)]
- Calculation of the Structure Properties of a Strange Quark Star in the Presence of Strong Magnetic Field Using a Density Dependent Bag Constant
- Structure of hybrid protoneutron stars within the Nambu--Jona-Lasinio model
- A thermodynamically consistent quasi-particle model without density-dependent infinity of the vacuum zero point energy
- Mass radius relation of compact stars in the braneworld
- Relativistic Mean Field Model parameterizations in the light of GW170817, GW190814, and PSR J0740 + 6620
- Galvano-rotational effect induced by electroweak interactions in pulsars
- Model Study of a Quark Star
- PNJL model at zero temperature: three-flavor case
- 2+1 flavors QCD equation of state at zero temperature within Dyson-Schwinger equations
- Cold quark matter in a quasiparticle model: thermodynamic consistency and stellar properties
- Quark Matter at High Density based on Extended Confined-isospin-density-dependent-mass Model
- Hot Spin Polarized Strange Quark Stars in the Presence of Magnetic Field using a density dependent bag constant
- Strange stars admixed with dark matter: equiparticle model in a two fluid approach
- Magnetic fields in turbulent quark matter and magnetar bursts
- Quark confinement in an equiparticle quark model: application to stellar matter
- Effects of Strong Magnetic Fields on the Hadron-Quark Deconfinement Transition