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Cai, RG; Liu, TB; Liu, XW; Wang, SJ; Yang, T4
Probing cosmic anisotropy with gravitational waves as standard sirens
发表期刊PHYSICAL REVIEW D
语种英语
关键词HEMISPHERICAL POWER ASYMMETRY LARGE-SCALE STRUCTURE SUPERNOVAE EXPANSION UNIVERSE GROWTH
摘要The gravitational wave (GW) as a standard siren directly determines the luminosity distance from the gravitational waveform without reference to the specific cosmological model, of which the redshift can be obtained separately by means of the electromagnetic counterpart like GW events from binary neutron stars and massive black hole binaries (MBEIBs). To see to what extent the standard siren can reproduce the presumed dipole anisotropy written in the simulated data of standard siren events from typical configurations of GW detectors, we find that (1) for the Laser Interferometer Space Antenna with different MBHB models during five-year observations, the cosmic isotropy can be ruled out at 3 sigma confidence level (C.L.) and the dipole direction can be constrained roughly around 20% at 2 sigma C.L., as long as the dipole amplitude is larger than 0.04, 0.06 and 0.03 for MBHB models Q3d, pop III and Q3nod with increasing constraining ability, respectively; (2) for the Einstein telescope with no less than 200 standard siren events, the cosmic isotropy can be ruled out at 3 sigma C.L. if the dipole amplitude is larger than 0.06, and the dipole direction can be constrained within 20% at 3 sigma C.L. if the dipole amplitude is near 0.1; (3) for the Deci-Hertz Interferometer Gravitational wave Observatory with no less than 100 standard siren events, the cosmic isotropy can be ruled out at 3 sigma C.L. for dipole amplitude larger than 0.03, and the dipole direction can even be constrained within 10% at 3 sigma C.L. if the dipole amplitude is larger than 0.07. Our work manifests the promising perspective of the constraint ability on the cosmic anisotropy from the standard siren approach.
2018
ISSN2470-0010
卷号97期号:10页码:103005
学科领域Astronomy & Astrophysics ; Physics
学科门类Astronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.97.103005
收录类别SCIE
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22905
专题理论物理所科研产出_SCI论文
作者单位1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Univ Helsinki, Dept Phys, PL 64, FI-00014 Helsinki, Finland
4.Univ Helsinki, Helsinki Inst Phys, PL 64, FI-00014 Helsinki, Finland
5.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
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Cai, RG,Liu, TB,Liu, XW,et al. Probing cosmic anisotropy with gravitational waves as standard sirens[J]. PHYSICAL REVIEW D,2018,97(10):103005.
APA Cai, RG,Liu, TB,Liu, XW,Wang, SJ,&Yang, T.(2018).Probing cosmic anisotropy with gravitational waves as standard sirens.PHYSICAL REVIEW D,97(10),103005.
MLA Cai, RG,et al."Probing cosmic anisotropy with gravitational waves as standard sirens".PHYSICAL REVIEW D 97.10(2018):103005.
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