Maximum mass of neutron stars with quark matter core

Journal Article · Mon Nov 12 00:00:00 EST 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4763435· OSTI ID:22075779

Takatsuka, Tatsuyuki; Hatsuda, Tetsuo; Masuda, Kota ^[1]

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1. Iwate University, Morioka 020-8550 (Japan)

We propose a new strategy to construct the equation of state (EOS) for neutron stars (NSs) with hadron-quark (H-Q) phase transition, by considering three density-regions. We supplement the EOS at H-Q region, very uncertain due to the confinement-deconfinement problems, by sandwitching in between and matching to the relatively 'well known' EOSs, i.e., the EOS at lower densities (H-phase up to several times nuclear density, calculated from a G-matrix approach) and that at ultra high densities (Q-phase, form a view of asymptotic freedom). Here, as a first step, we try a simple case and discuss the maximum mass of NSs.

• OSTI ID: 22075779
• Journal Information: AIP Conference Proceedings, Vol. 1484, Issue 1; Conference: Conference on origin of matter and evolution of galaxies 2011, Wako (Japan), 14-17 Nov 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASYMPTOTIC SOLUTIONS
BAG MODEL
CONFINEMENT
DENSITY
EQUATIONS OF STATE
G MATRIX
HADRONS
MASS
NEUTRON STARS
NUCLEAR MATTER
PHASE TRANSFORMATIONS
QUARK MATTER
QUARKS
THERMODYNAMICS