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Causal propagation of signals in strangeon matter
Lu, JiGuang1,2; Zhou, EnPing3; Lai, XiaoYu4,5; Xu, RenXin3,6
Source PublicationScience China-Physics Mechanics & Astronomy
Contribution Rank5
AbstractThe state equation for strangeon matter is very stiff due to the non-relativistic nature of its particles and their repulsive interaction, such that pulsar masses as high as 3M (aS (TM)) would be expected. However, an adiabatic sound speed, c (s) = aea,P/a,rho, is usually superluminal in strangeon matter, and the dynamic response of a strangeon star (e.g., binary merger) is not tractable in numerical simulations. In this study, we examined signal propagation in strangeon matter and calculate the actual propagation speed, c (signal). We found that the causality condition, c (signal) < c, is satisfied and the signal speed is presented as a function of stellar radius.
Keywordequations of state of neutron-star matter acoustic signal processing control theory neutron-star quark stars ultradense matter cluster stars maximum mass speed sound model Physics
Indexed BySCI
WOS IDWOS:000437170500008
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.CAS Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China;
2.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Beijing 100012, China;
3.School of Physics and State Key Laboratory of Nuclear Science and Technology, Peking University, Beijing 100871, China;
4.School of Physics and Mechanical & Electrical Engineering, Hubei University of Education, Wuhan 430205, China;
5.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China;
6.Kavil Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China
Recommended Citation
GB/T 7714
Lu, JiGuang,Zhou, EnPing,Lai, XiaoYu,et al. Causal propagation of signals in strangeon matter[J]. Science China-Physics Mechanics & Astronomy,2018,61(8):89511.
APA Lu, JiGuang,Zhou, EnPing,Lai, XiaoYu,&Xu, RenXin.(2018).Causal propagation of signals in strangeon matter.Science China-Physics Mechanics & Astronomy,61(8),89511.
MLA Lu, JiGuang,et al."Causal propagation of signals in strangeon matter".Science China-Physics Mechanics & Astronomy 61.8(2018):89511.
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