Rotating NSs/QSs and recent astrophysical observations

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

	Rotating NSs/QSs and recent astrophysical observations
	Li,Ang 1; Dong,Jianmin 2
刊名	Journal of Physics: Conference Series
	2017-06-01
卷号	861
ISSN号	1742-6588
DOI	10.1088/1742-6596/861/1/012014
英文摘要	Abstract 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 ? 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.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:1742-6588-861-1-012014
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/24520]
专题	中国科学院近代物理研究所
作者单位	1.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, China 2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
推荐引用方式 GB/T 7714	Li,Ang,Dong,Jianmin. Rotating NSs/QSs and recent astrophysical observations[J]. Journal of Physics: Conference Series,2017,861.
APA	Li,Ang,&Dong,Jianmin.(2017).Rotating NSs/QSs and recent astrophysical observations.Journal of Physics: Conference Series,861.
MLA	Li,Ang,et al."Rotating NSs/QSs and recent astrophysical observations".Journal of Physics: Conference Series 861(2017).