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题名: Revisiting the hot matter in the center of gamma-ray bursts and supernovae
作者: Li, A ;  Liu, T
刊名: ASTRONOMY & ASTROPHYSICS
出版日期: 2013
卷号: 555, 期号:-, 页码:A129
关键词: NEUTRINO-DOMINATED ACCRETION ;  DUN GRAND NOMBRE ;  UN DEVELOPPEMENT ;  3-DIMENSIONAL SIMULATIONS ;  PROTONEUTRON STARS ;  VERTICAL STRUCTURE ;  JET PRECESSION ;  NUCLEAR-MATTER ;  3-BODY FORCE ;  BLACK-HOLES
学科分类: Physics
通讯作者: Li, A (reprint author), Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China.
部门归属: [Li, Ang; Liu, Tong] Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China; [Li, Ang; Liu, Tong] Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Fujian, Peoples R China; [Li, Ang; Liu, Tong] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: Aims. Hot matter with nucleons can be produced in the inner region of the neutrino-dominated accretion flow in gamma-ray bursts or during the proto-neutron star birth in successful supernovae. The composition and equation of state of the matter depend on the dynamic beta equilibrium under various neutrino opacities. The strong interaction between nucleons may also play an important role. We plan to extend the previous studies by incorporating these two aspects in our model. Methods. The modification of the beta-equilibrium condition from neutrino optically thin to thick was modeled by an equilibrium factor chi ranging between the neutrino-freely-escaping case and the neutrino-trapped case. We employed the microscopic Brueckner-Hartree-Fock approach extended to the finite temperature regime to study the interacting nucleons. Results. We show the composition and chemical potentials of the hot nuclear matter for different densities and temperatures at each stage of beta equilibrium. We also compare our realistic equation of states with those of the free-gas model. We find that it is important to properly describe the neutrino opacity and the strong interaction between nucleons, and they should be taken into account in model calculations.
资助者: National Basic Research Program (973 Program) of China [2009CB824800]; National Natural Science Foundation of China [11103015, 11233006]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000322008600129
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15335
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Li, A,Liu, T. Revisiting the hot matter in the center of gamma-ray bursts and supernovae[J]. ASTRONOMY & ASTROPHYSICS,2013,555(-):A129.
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