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Title: Shock wave produced by hadron-quark phase transition in neutron star

In this work we present a schematic description of the detonation wave in hadronic matter inside a neutron star core. We have used a simplified two shells model where the inner shell medium is initially composed of a small lump of strange quark matter surrounded by a large outer shell composed of hadronic matter. We have utilized an equation of state (EOS) based on Relativistic Mean Field Theory with the parameter set NL3 to describe the nuclear and subnuclear phases. We use the MIT bag model to describe the strange quark matter. The hadron-quark phase transition actually induces highly non equilibrium modes, which may become a detonation process (faster) or a burning process (slower). The main purpose of the work is to study the formation of a remnant quark star and the possibility of mass ejection caused by the hadron-quark phase transition. We have found that the total amount of ejected mass is dependant of the bag constant utilized in the strange matter description.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Universidade Federal do Acre – Campus Floresta, Estrada do Canela Fina, km 12, CEP 69980-000, Cruzeiro do Sul, AC (Brazil)
  2. (Brazil)
  3. Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud, 150, CEP 22290-180, Rio de Janeiro, RJ (Brazil)
  4. Centro Federal de Educação Tecnológica Celso Suckow da Fonseca Av. Maracanã, 229, CEP 20271-110, Rio de Janeiro, RJ (Brazil)
Publication Date:
OSTI Identifier:
22494318
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1693; Journal Issue: 1; Conference: 2. ICRANet Cesar Lattes meeting on supernovae, neutron stars and black holes, Rio de Janeiro (Brazil), 13-22 Apr 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BAG MODEL; DETONATION WAVES; EQUATIONS OF STATE; EQUILIBRIUM; HADRONS; MASS; MEAN-FIELD THEORY; NEUTRON STARS; PHASE TRANSFORMATIONS; QUARK MATTER; RELATIVISTIC RANGE; S QUARKS; SHELL MODELS; SHELLS