Strange stars with different quark mass scalings

Abstract

We investigate the stability of strange quark matter and the properties of the corresponding strange stars, within a wide range of quark mass scaling. The calculation shows that the resulting maximum mass always lies between 1.5 solor mass and 1.8 solor mass for all the scalings chosen here. Strange star sequences with a linear scaling would support less gravitational mass, and a change (increase or decrease) of the scaling around the linear scaling would lead to a larger maximum mass. Radii invariably decrease with the mass scaling. Then the larger the scaling, the faster the star might spin. In addition, the variation of the scaling would cause an order of magnitude change of the strong electric field on quark surface, which is essential to support possible crusts of strange stars against gravity and may then have some astrophysical implications.

5 pages, 6 figures, 1 table. accepted by MN

References in corpus (2)

• Deconfinement phase transition in hybrid neutron stars from the Brueckner theory with three-body forces and a quark model with chiral mass scaling
• Charge, strangeness and radius of strangelets

Cited by in corpus (17)

• Too massive neutron stars: The role of dark matter?
• Internal X-ray plateau in short GRBs: Signature of supramassive fast-rotating quark stars?
• Quark matter symmetry energy and quark stars
• Thermodynamic consistency, quark mass scaling, and properties of strange matter
• Neutron star equation of state: QMF modeling and applications
• Massive hybrid stars with a first order phase transition
• Bayesian inference of strange star equation of state using the GW170817 and GW190425 data
• Strange quark matter in strong magnetic fields within a confining model
• Interacting $ud$ and $uds$ quark matter at finite densities and quark stars
• Bayesian inference of quark star equation of state using the NICER PSR J0030+0451 data
• Strange quark matter and quark stars with the Dyson-Schwinger quark model
• Model of hybrid star with baryonic and strange quark matter in Tolman-Kuchowicz spacetime
• Close-in Exoplanets as Candidates of Strange Quark Matter Objects
• Possibility of conversion of neutron star to quark star in presence of high magnetic field
• Bayesian inference of strangeon matter using the measurements of PSR J0437-4715 and GW190814
• Distinct Classes of Compact Stars Based On Geometrically Deduced Equations of State
• Two-flavor hybrid stars with the Dyson-Schwinger quark model