Institutional Repository of Radio Astronomy Research Laboratory
Causal propagation of signals in strangeon matter | |
Lu, JiGuang1,2; Zhou, EnPing3; Lai, XiaoYu4,5![]() | |
2018-08-01 | |
Source Publication | Science China-Physics Mechanics & Astronomy
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ISSN | 1674-7348 |
Volume | 61Issue:8Pages:89511 |
Contribution Rank | 5 |
Abstract | The 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. |
Keyword | equations 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 |
Subtype | Article |
DOI | 10.1007/s11433-018-9205-5 |
URL | 查看原文 |
Indexed By | SCI |
Language | 英语 |
WOS ID | WOS:000437170500008 |
EI Accession Number | 20211410162552 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.xao.ac.cn/handle/45760611-7/3246 |
Collection | 射电天文研究室_脉冲星研究团组 |
Affiliation | 1.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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Lu-2018-Causal propa(389KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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