Rotating NSs/QSs and recent astrophysical observations

doi:10.1088/1742-6596/861/1/012014

	Rotating NSs/QSs and recent astrophysical observations
	Li, Ang 2; Dong, Jianmin 1; Mannarelli, M ; Bombaci, I
	2017
卷号	861
DOI	10.1088/1742-6596/861/1/012014
英文摘要	Both fast and slow configurations of rotating neutron stars (NSs) are studied with the recently-constructed unified NS EoSs. The calculations for pure quark stars (QSs) and hybrid stars (HSs) are also done, using several updated quark matter EoSs and Gibbs construction for obtaining hadron-quark mixed phase. All three types of EoSs fulfill the recent 2-solar-mass constraint. By confronting the glitch observations with the theoretical calculations for the crustal moment of inertia (MoI), we find that the glitch crisis is still present in Vela-like pulsars. An upcoming accurate MoI measurement (eg., a possible 10% accuracy for pulsar PSR J0737-3039A) allows one to distinguish QSs from NSs, since the MoIs of QSs are generally greater than or similar to 1.5 times larger than NSs and HSs, no matter the compactness and the mass of the stars. Using tabulated EoSs, we compute stationary and equilibrium sequences of rapidly rotating, relativistic stars in general relativity from the well-tested rns code, assuming the matter comprising the star to be a perfect fluid. All three observed properties of the short gamma-ray bursts (SGRBs) internal plateaus sample are simulated using the rotating configurations of NSs/QSs as basic inputs. We finally argue that for some characteristic SGRBs, the post-merger products of NS NS mergers are probably supramassive QSs rather than NSs, and NS-NS mergers are a plausible location for quark deconfinement and the formation of QSs.
会议录	COMPACT STARS IN THE QCD PHASE DIAGRAM V
会议录出版者	IOP PUBLISHING LTD
会议录出版地	DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
语种	英语
资助项目	National Natural Science Foundation of China[11405223] ; National Natural Science Foundation of China[U1431107]
WOS研究方向	Astronomy & Astrophysics
WOS记录号	WOS:000414151700014
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/58403]
专题	中国科学院近代物理研究所
通讯作者	Li, Ang
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Li, Ang,Dong, Jianmin,Mannarelli, M,et al. Rotating NSs/QSs and recent astrophysical observations[C]. 见:.