Role of nucleon-nucleon correlation in transport coefficients and gravitational-wave-driven r-mode instability of neutron stars

doi:10.1016/j.physletb.2020.135963

	Role of nucleon-nucleon correlation in transport coefficients and gravitational-wave-driven r-mode instability of neutron stars
	Shang, X. L.1,2,3; Wang, P.4; Zuo, W.1,2,3; Dong, J. M.1,2,3
刊名	PHYSICS LETTERS B
	2020-12-10
卷号	811 页码:7
关键词	Nucleon-nucleon correlation r-mode instability Shear viscosity Gravitational wave Neutron stars
ISSN号	0370-2693
DOI	10.1016/j.physletb.2020.135963
通讯作者	Dong, J. M.(dongjm07@impcas.ac.cn)
英文摘要	The thermal conductivity and shear viscosity of dense nuclear matter, along with the corresponding shear viscosity timescale of canonical neutron stars (NSs), are investigated, where the effect of Fermi surface depletion (i.e., the Z-factor effect) induced by the nucleon-nucleon correlation is taken into account. The factors which are responsible for the transport coefficients, including the equation of state for building the stellar structure, nucleon effective masses, in-medium cross sections, and the Z-factor at Fermi surfaces, are all calculated in the framework of the Brueckner theory. The Fermi surface depletion is found to enhance the transport coefficients by several times at high densities, which is more favorable to damping the gravitational-wave-driven r-mode instability of NSs. Yet, the onset of the Z-factor-quenched neutron triplet superfluidity provides the opposite effects, which can be much more significant than the above mentioned Z-factor effect itself. Therefore, different from the previous understanding, the nucleon shear viscosity is still smaller than the lepton one in the superfluid NS matter at low temperatures. Accordingly, the shear viscosity cannot stabilize canonical NSs against r-mode oscillations even at quite low core temperatures 10(6) K. (C) 2020 The Author(s). Published by Elsevier B.V.
资助项目	National Natural Science Foundation of China[11775276] ; National Natural Science Foundation of China[11975282] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB34000000] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[Y201871] ; Continuous Basic Scientific Research Project[WDJC-2019-13] ; Leading Innovation Project[LC 192209000701]
WOS关键词	SHORT-RANGE CORRELATIONS ; RADIATION ; MATTER ; SUPERFLUIDITY
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000599859900032
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Continuous Basic Scientific Research Project ; Leading Innovation Project
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/138507]
专题	中国科学院近代物理研究所
通讯作者	Dong, J. M.
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, CAS Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Shang, X. L.,Wang, P.,Zuo, W.,et al. Role of nucleon-nucleon correlation in transport coefficients and gravitational-wave-driven r-mode instability of neutron stars[J]. PHYSICS LETTERS B,2020,811:7.
APA	Shang, X. L.,Wang, P.,Zuo, W.,&Dong, J. M..(2020).Role of nucleon-nucleon correlation in transport coefficients and gravitational-wave-driven r-mode instability of neutron stars.PHYSICS LETTERS B,811,7.
MLA	Shang, X. L.,et al."Role of nucleon-nucleon correlation in transport coefficients and gravitational-wave-driven r-mode instability of neutron stars".PHYSICS LETTERS B 811(2020):7.