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Title: Maximum mass of neutron stars with quark matter core

Abstract

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.

Authors:
; ;  [1];  [2];  [2]
  1. Iwate University, Morioka 020-8550 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
22075779
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1484; Journal 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); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Takatsuka, Tatsuyuki, Hatsuda, Tetsuo, Masuda, Kota, Department of Physics, University of Tokyo, Tokyo 113-0033, Japan and Theoretical Research Division, Nishina Center, RIKEN, Wako 351-0198, and Department of Physics, University of Tokyo, Tokyo 113-0033. Maximum mass of neutron stars with quark matter core. United States: N. p., 2012. Web. doi:10.1063/1.4763435.
Takatsuka, Tatsuyuki, Hatsuda, Tetsuo, Masuda, Kota, Department of Physics, University of Tokyo, Tokyo 113-0033, Japan and Theoretical Research Division, Nishina Center, RIKEN, Wako 351-0198, & Department of Physics, University of Tokyo, Tokyo 113-0033. Maximum mass of neutron stars with quark matter core. United States. doi:10.1063/1.4763435.
Takatsuka, Tatsuyuki, Hatsuda, Tetsuo, Masuda, Kota, Department of Physics, University of Tokyo, Tokyo 113-0033, Japan and Theoretical Research Division, Nishina Center, RIKEN, Wako 351-0198, and Department of Physics, University of Tokyo, Tokyo 113-0033. Mon . "Maximum mass of neutron stars with quark matter core". United States. doi:10.1063/1.4763435.
@article{osti_22075779,
title = {Maximum mass of neutron stars with quark matter core},
author = {Takatsuka, Tatsuyuki and Hatsuda, Tetsuo and Masuda, Kota and Department of Physics, University of Tokyo, Tokyo 113-0033, Japan and Theoretical Research Division, Nishina Center, RIKEN, Wako 351-0198 and Department of Physics, University of Tokyo, Tokyo 113-0033},
abstractNote = {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.},
doi = {10.1063/1.4763435},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1484,
place = {United States},
year = {2012},
month = {11}
}