Reinvestigation of moving punctured black holes with a new code

doi:10.1103/PhysRevD.78.124011

CSpace > 应用数学研究所

	Reinvestigation of moving punctured black holes with a new code
	Cao, Zhoujian1,2,3 ; Yo, Hwei-Jang 4; Yu, Jui-Ping 4
	2008-12-01
发表期刊	PHYSICAL REVIEW D
ISSN	1550-7998
卷号	78 期号:12 页码:17
摘要	We report on our code, in which the moving puncture method is applied and an adaptive/fixed mesh refinement is implemented, and on its preliminary performance on black hole simulations. Based on the Baumgarte-Sharpiro-Shibata-Nakamura (BSSN) formulation, up-to-date gauge conditions and the modifications of the formulation are also implemented and tested. In this work, we present our primary results about the simulation of a single static black hole, of a moving single black hole, and of the head-on collision of a binary black hole system. For the static punctured black hole simulations, different modifications of the BSSN formulation are applied. It is demonstrated that both the currently used sets of modifications lead to a stable evolution. For cases of a moving punctured black hole with or without spin, we search for viable gauge conditions and study the effect of spin on the black hole evolution. Our results confirm previous results obtained by other research groups. In addition, we find a new gauge condition, which has not yet been adopted by any other researchers, which can also give stable and accurate black hole evolution calculations. We examine the performance of the code for the head-on collision of a binary black hole system, and the agreement of the gravitational waveform it produces with that obtained in other works. In order to understand qualitatively the influence of matter on the binary black hole collisions, we also investigate the same head-on collision scenarios but perturbed by a scalar field. The numerical simulations performed with this code not only give stable and accurate results that are consistent with the works by other numerical relativity groups, but also lead to the discovery of a new viable gauge condition, as well as clarify some ambiguities in the modification of the BSSN formulation. These results demonstrate that this code is reliable and ready to be used in the study of more realistic astrophysical scenarios and of numerical relativity.
DOI	10.1103/PhysRevD.78.124011
语种	英语
资助项目	National Science Council[NSC95-2112-M-006-017-MY2] ; National Science Council[NSC97-2112-M-006-008] ; NSFC[10671196] ; NSFC[10731080] ; National 973 Project[2006CB805905] ; National Center of Theoretical Sciences
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号	WOS:000262251100060
出版者	AMER PHYSICAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/5843
专题	应用数学研究所
通讯作者	Cao, Zhoujian
作者单位	1.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing 100080, Peoples R China 2.Theoret Inst Adv Res Astrophys, Hsinchu 30013, Taiwan 3.State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R China 4.Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan
推荐引用方式 GB/T 7714	Cao, Zhoujian,Yo, Hwei-Jang,Yu, Jui-Ping. Reinvestigation of moving punctured black holes with a new code[J]. PHYSICAL REVIEW D,2008,78(12):17.
APA	Cao, Zhoujian,Yo, Hwei-Jang,&Yu, Jui-Ping.(2008).Reinvestigation of moving punctured black holes with a new code.PHYSICAL REVIEW D,78(12),17.
MLA	Cao, Zhoujian,et al."Reinvestigation of moving punctured black holes with a new code".PHYSICAL REVIEW D 78.12(2008):17.