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Improved fast-rotating black hole evolution simulations with modified Baumgarte-Shapiro-Shibata-Nakamura formulation

文献类型：期刊论文

作者Yo, Hwei-Jang1; Cao, Zhoujian2,3; Lin, Chun-Yu4; Pan, Hsing-Po1
刊名PHYSICAL REVIEW D
出版日期2015-07-21
卷号92期号:2页码:10
ISSN号1550-7998
DOI10.1103/PhysRevD.92.024034
英文摘要Different formulations of Einstein's equations used in numerical relativity can affect not only the stability but also the accuracy of numerical simulations. In the original Baumgarte-Shapiro-Shibata-Nakamura (BSSN) formulation, the loss of the angular momentum, J, is non-negligible in highly spinning single black hole evolutions. This loss also appears, usually right after the merger, in highly spinning binary black hole simulations, The loss of J may be attributed to some unclear numerical dissipation. Reducing unphysical dissipation is expected to result in more stable and accurate evolutions. In the previous work [H.-J. Yo et al., Phys. Rev. D 86, 064027 (2012).] we proposed several modifications which are able to prevent black hole evolutions from the unphysical dissipation, and the resulting simulations are more stable than in the traditional BSSN formulation. Specifically, these three modifications (M1, M2, and M3) enhance the effects of stability, hyperbolicity, and dissipation of the formulation. We experiment further in this work with these modifications, and demonstrate that these modifications improve the accuracy and also effectively suppress the loss of J, particularly in the black hole simulations with an initially large ratio of J and a square of the ADM mass.
资助项目National Science Council[NSC102-2112-M-006-014-MY2] ; Headquarters of University Advancement at the National Cheng Kung University - Ministry of Education, Taiwan, Republic of China ; NSFC[11375260]
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
WOS记录号WOS:000358257600002
出版者AMER PHYSICAL SOC
源URL[http://ir.amss.ac.cn/handle/2S8OKBNM/20398]  
专题应用数学研究所
通讯作者Yo, Hwei-Jang
作者单位1.Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan
2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Acad Math & Syst Sci, LSEC, Beijing 100190, Peoples R China
4.Natl Ctr High Performance Comp, Hsinchu 300, Taiwan
推荐引用方式
GB/T 7714		 Yo, Hwei-Jang,Cao, Zhoujian,Lin, Chun-Yu,et al. Improved fast-rotating black hole evolution simulations with modified Baumgarte-Shapiro-Shibata-Nakamura formulation[J]. PHYSICAL REVIEW D,2015,92(2):10.
APA Yo, Hwei-Jang,Cao, Zhoujian,Lin, Chun-Yu,&Pan, Hsing-Po.(2015).Improved fast-rotating black hole evolution simulations with modified Baumgarte-Shapiro-Shibata-Nakamura formulation.PHYSICAL REVIEW D,92(2),10.
MLA Yo, Hwei-Jang,et al."Improved fast-rotating black hole evolution simulations with modified Baumgarte-Shapiro-Shibata-Nakamura formulation".PHYSICAL REVIEW D 92.2(2015):10.

入库方式： OAI收割

来源：数学与系统科学研究院

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