Constraints on primordial-black-hole population and cosmic expansion history from GWTC-3

doi:10.1088/1475-7516/2023/03/024

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	Constraints on primordial-black-hole population and cosmic expansion history from GWTC-3
	Chen, Zu-Cheng ; Du, Shen-Shi ; Huang, Qing-Guo ; You, Zhi-Qiang
刊名	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
	2023
期号	3 页码:24
ISSN号	1475-7516
DOI	10.1088/1475-7516/2023/03/024
英文摘要	Gravitational waves (GWs) from compact binary coalescences provide an inde-pendent probe of the cosmic expansion history other than electromagnetic waves. In this work, we assume the binary black holes (BBHs) detected by LIGO-Virgo-KAGRA (LVK) collaborations are of primordial origin and constrain the population parameters of primordial black holes (PBHs) and Hubble parameter H(z) using 42 BBHs from third LVK GW transient catalog (GWTC-3). Three PBH mass models are considered: lognormal, power-law, and critical collapse PBH mass functions. By performing a hierarchical Bayesian population analysis, the Bayes factor strongly disfavors the power-law PBH mass function against the other two in GWTC-3. The constraints on standard ACDM cosmological parameters are rather weak and in agreement with current results. When combining the multi-messenger standard siren measurement from GW170817, the Hubble constant H0 is constrained to be 69+19 -8 km s-1 Mpc-1 and 70+26 -8 km s-1 Mpc-1 at 68% confidence for the lognormal and critical collapse mass models, respectively. Furthermore, we consider a mixed ABH+PBH model, in which we assume LUK BBHs can come from both the astrophysical black hole (ABH) and PBH channels. We find that the ABH+PBH model can better describe the mass distribution in GWTC-3 than any single ABH or PBH model, thus improving the precision to constrain the Hubble constant. With the increased BBH events, the mixed ABH+PBH model provides a robust statistical inference for both the population and cosmological parameters.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27948]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.[Chen, Zu-Cheng 2.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 3.Beijing Normal Univ, Adv Inst Nat Sci, Zhuhai 519087, Peoples R China 4.Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China 5.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 6.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 7.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zu-Cheng,Du, Shen-Shi,Huang, Qing-Guo,et al. Constraints on primordial-black-hole population and cosmic expansion history from GWTC-3[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2023(3):24.
APA	Chen, Zu-Cheng,Du, Shen-Shi,Huang, Qing-Guo,&You, Zhi-Qiang.(2023).Constraints on primordial-black-hole population and cosmic expansion history from GWTC-3.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(3),24.
MLA	Chen, Zu-Cheng,et al."Constraints on primordial-black-hole population and cosmic expansion history from GWTC-3".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .3(2023):24.