Parameter estimation of eccentric inspiraling compact binaries using an enhanced post circular model for ground-based detectors

doi:10.1103/PhysRevD.92.044034

CSpace > 应用数学研究所

	Parameter estimation of eccentric inspiraling compact binaries using an enhanced post circular model for ground-based detectors
	Su, Baosan 1; Cao, Zhoujian2 ; Wang, Yan 3; Yeh, Hsien-Chi 4
	2015-08-19
发表期刊	PHYSICAL REVIEW D
ISSN	1550-7998
卷号	92 期号:4 页码:10
摘要	Inspiraling compact binaries have been identified as one of the most promising sources for gravitational-wave detection. These binaries are always expected to have been circularized by the gravitational radiation when they enter the detector's frequency band. However, recent studies indicate that some binaries may still possess a significant eccentricity. In light of the enhanced post-circular waveform model for eccentric binaries in the frequency domain, we do a systematic study of the possible signal-to-noise ratio loss if one uses quasicircular waveform templates to analyze the eccentric signal, and revisit the problem of parameter estimation of gravitational-wave chirp signals from eccentric compact binaries. We confirm previous results from other researchers that the resulting signal-to-noise ratio loss becomes larger than 5% for eccentricity bigger than 0.1 and the resulting parameter estimation bias is more than 0.1%. We study the parameter estimation accuracy for such a waveform with different initial eccentricities from 0.1 to 0.4 by using the Fisher matrix method. As expected, the eccentricity improves the parameter estimation accuracy significantly by breaking degeneracies between different parameters. Particularly, we find that the eccentricity errors improve by 2 orders of magnitude from 10(-2) to 10(-4) when eccentricity grows from 0.1 to 0.4, and the estimated errors of the chirp mass are about 10(-3) for a binary black hole using the Advanced LIGO detector. For the Einstein Telescope detector, the estimated accuracy of parameters will be 2 orders of magnitude higher.
DOI	10.1103/PhysRevD.92.044034
语种	英语
资助项目	NSFC[11375260]
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号	WOS:000359867100004
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/20546
专题	应用数学研究所
通讯作者	Cao, Zhoujian
作者单位	1.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing 100190, Peoples R China 3.Univ Western Australia, Sch Phys, Perth, WA 6009, Australia 4.Huazhong Univ Sci & Technol, Sch Phys, Lab Fundamental Phys Quant Measurement, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Su, Baosan,Cao, Zhoujian,Wang, Yan,et al. Parameter estimation of eccentric inspiraling compact binaries using an enhanced post circular model for ground-based detectors[J]. PHYSICAL REVIEW D,2015,92(4):10.
APA	Su, Baosan,Cao, Zhoujian,Wang, Yan,&Yeh, Hsien-Chi.(2015).Parameter estimation of eccentric inspiraling compact binaries using an enhanced post circular model for ground-based detectors.PHYSICAL REVIEW D,92(4),10.
MLA	Su, Baosan,et al."Parameter estimation of eccentric inspiraling compact binaries using an enhanced post circular model for ground-based detectors".PHYSICAL REVIEW D 92.4(2015):10.