Probing cosmic anisotropy with gravitational waves as standard sirens
文献类型：期刊论文
| 作者 | Wang, SJ; Yang, T4; Liu, XW; Liu, TB; Cai, RG
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2018 |
| 卷号 | 97期号:10页码:103005 |
| ISSN号 | 2470-0010 |
| 关键词 | HEMISPHERICAL POWER ASYMMETRY LARGE-SCALE STRUCTURE SUPERNOVAE EXPANSION UNIVERSE GROWTH |
| DOI | 10.1103/PhysRevD.97.103005 |
| 英文摘要 | 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. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22905]  |
| 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.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 4.Univ Helsinki, Helsinki Inst Phys, PL 64, FI-00014 Helsinki, Finland 5.Univ Helsinki, Dept Phys, PL 64, FI-00014 Helsinki, Finland |
| 推荐引用方式 GB/T 7714 | Wang, SJ,Yang, T,Liu, XW,et al. Probing cosmic anisotropy with gravitational waves as standard sirens[J]. PHYSICAL REVIEW D,2018,97(10):103005. |
| APA | Wang, SJ,Yang, T,Liu, XW,Liu, TB,&Cai, RG.(2018).Probing cosmic anisotropy with gravitational waves as standard sirens.PHYSICAL REVIEW D,97(10),103005. |
| MLA | Wang, SJ,et al."Probing cosmic anisotropy with gravitational waves as standard sirens".PHYSICAL REVIEW D 97.10(2018):103005. |
入库方式： OAI收割
来源：理论物理研究所
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