Effects of -meson on the EOS, Maximum Masses, and Radii of Hyperon Stars

doi:10.3847/1538-4357/ab43c5

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	Effects of -meson on the EOS, Maximum Masses, and Radii of Hyperon Stars
	Biswal, S. K.; Patra, S. K.; Zhou, Shan-Gui
刊名	ASTROPHYSICAL JOURNAL
	2019
卷号	885 期号:1 页码:25
关键词	MEAN-FIELD-THEORY HARTREE-BOGOLIUBOV THEORY GROUND-STATE PROPERTIES NEUTRON-STAR FINITE NUCLEI BOUND-STATE MATTER DENSITY PHYSICS CONSISTENT
ISSN号	0004-637X
DOI	10.3847/1538-4357/ab43c5
英文摘要	The relativistic mean field (RMF) model is considered as one of the best methods to study the nuclear system that has a high degree of isospin asymmetry and baryon density. In the present contribution, we take 25 well-known parameter sets of the RMF model to discuss the parametric dependence of the neutron and hyperon star properties. Various properties of the canonical star are discussed and only a few parameter sets are found to satisfy both the astrophysical and nuclear matter constraints. We add both and ?* strange mesons to the ?-?-? model. Effects of the -meson on the equation of state and maximum mass of the hyperon star are discussed in detail. -meson affects the threshold density of hyperon production and pushes the hyperon production to a higher density. Effects of the hyperon?meson coupling constants on the maximum mass?radius profile and strangeness content of the hyperon star are discussed in the ?-?-?--?* model.
学科主题	Astronomy & Astrophysics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/26964]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.[Patra, S. K.] Homi Bhabha Natl Inst, Mumbai 400085, Maharashtra, India 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.[Biswal, S. K. 4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 5.Natl Lab Heavy Ion Accelerator, 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 7.[Patra, S. K.] Inst Phys, Bhubaneswar 751005, India
推荐引用方式 GB/T 7714	Biswal, S. K.,Patra, S. K.,Zhou, Shan-Gui. Effects of -meson on the EOS, Maximum Masses, and Radii of Hyperon Stars[J]. ASTROPHYSICAL JOURNAL,2019,885(1):25.
APA	Biswal, S. K.,Patra, S. K.,&Zhou, Shan-Gui.(2019).Effects of -meson on the EOS, Maximum Masses, and Radii of Hyperon Stars.ASTROPHYSICAL JOURNAL,885(1),25.
MLA	Biswal, S. K.,et al."Effects of -meson on the EOS, Maximum Masses, and Radii of Hyperon Stars".ASTROPHYSICAL JOURNAL 885.1(2019):25.