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Bhuyan, M; Carlson, BV; Patra, SK; Zhou, SG
The attribute of rotational profile to the hyperon puzzle in the prediction of heaviest compact star
发表期刊INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS
语种英语
关键词MEAN-FIELD-THEORY EQUATION-OF-STATE NEUTRON-STARS RELATIVISTIC STARS MAXIMUM MASS MILLISECOND PULSAR NUCLEAR-EQUATION NUMERICAL-METHOD QUARK MATTER MODELS
摘要In this theoretical study, we report an investigation of the equations of state (EoSs) of hyper-nuclear matter and its composition as a function of density within the framework of effective field theory motivated relativistic mean field model. We have used G2 force parameter along with various hyperon-meson coupling ratios by allowing the mixing and the breaking of SU(6) symmetry to predict the EoSs, keeping the nucleonic coupling constant intact. We have estimated the properties of nonrotating and rapidly rotating configuration of compact stars by employing four different representative sets of equations of state. The obtained results of the mass and radius for the compact stars are compared with the recent mass observations. Further, we have studied the stability and sensitivity of rotational frequency (at sub-millisecond period) on the configuration of the compact stars because the angular frequency is significantly smaller than the mass-shedding (Keplerian) frequency in slow rotation regime. Moreover, the yield of hyperon as a function of density for various hyperon-meson couplings are also estimated.
2017
ISSN0218-3013
卷号26期号:9页码:1750052
合作性质国际
学科领域Physics
学科门类Physics, Nuclear ; Physics, Particles & Fields
DOI10.1142/S0218301317500525
收录类别SCI
项目资助者973 Program of China [2013CB834400] ; 973 Program of China [2013CB834400] ; NSF of China [11120101005, 11275248, 11525524] ; NSF of China [11120101005, 11275248, 11525524] ; Chinese Academy of Sciences [KJCX2-EW-N01] ; Chinese Academy of Sciences [KJCX2-EW-N01] ; FAPESP [2014/26195-5] ; FAPESP [2014/26195-5] ; CNPq - Brasil ; CNPq - Brasil
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22737
专题计算平台成果
作者单位1.[Bhuyan, M.
2.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China
3.Carlson, B. V.] Inst Tecnol Aeronaut, BR-12228900 Sao Paulo, Brazil
4.[Patra, S. K.] Sainik Sch, Inst Phys, Sachivalaya Marg, Bhubaneswar 751005, Orissa, India
5.Natl Lab Heavy, Ctr Theoret Nucl Phys, Lanzhou 730000, Gansu, Peoples R China
6.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Changsha 410081, Hunan, Peoples R China
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Bhuyan, M,Carlson, BV,Patra, SK,et al. The attribute of rotational profile to the hyperon puzzle in the prediction of heaviest compact star[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS,2017,26(9):1750052.
APA Bhuyan, M,Carlson, BV,Patra, SK,&Zhou, SG.(2017).The attribute of rotational profile to the hyperon puzzle in the prediction of heaviest compact star.INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS,26(9),1750052.
MLA Bhuyan, M,et al."The attribute of rotational profile to the hyperon puzzle in the prediction of heaviest compact star".INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS 26.9(2017):1750052.
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