Constraints on the identity of the dark matter from strong gravitational lenses
文献类型：期刊论文
| 作者 | Li, Ran1 ; Frenk, Carlos S.2; Cole, Shaun2; Gao, Liang1; Bose, Sownak2; Hellwing, Wojciech A.3,4
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2016-07-21 |
| 卷号 | 460期号:1页码:363-372 |
| 关键词 | gravitational lensing: strong methods: statistical galaxies: haloes dark matter |
| 英文摘要 | The cold dark matter (CDM) cosmological model unambiguously predicts that a large number of haloes should survive as subhaloes when they are accreted into a larger halo. The CDM model would be ruled out if such substructures were shown not to exist. By contrast, if the dark matter consists of Warm Dark Matter (WDM) particles, then below a threshold mass that depends on the particle mass far fewer substructures would be present. Finding subhaloes below a certain mass would then rule out warm particle masses below some value. Strong gravitational lensing provides a clean method to measure the subhalo mass function through distortions in the structure of Einstein rings and giant arcs. Using mock lensing observations constructed from high-resolution N-body simulations, we show that measurements of approximately 100 strong lens systems with a detection limit of M-low = 10(7) h(-1) M-aS (TM) would clearly distinguish CDM from WDM in the case where this consists of 7 keV sterile neutrinos such as those that might be responsible for the 3.5 keV X-ray emission line recently detected in galaxies and clusters. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000379835200027 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5293]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Max Planck Inst Astrophys, Key Lab Computat Astrophys,Partner Grp, Beijing 100012, Peoples R China 2.Univ Durham, Dept Phys, Inst Computat Cosmol, South Rd, Durham DH1 3LE, England 3.Univ Portsmouth, Inst Cosmol & Gravitat, Burnaby Rd, Portsmouth PO1 3FX, Hants, England 4.Univ Warsaw, Interdisciplinary Ctr Math & Computat Modelling I, Ul Pawinskiego 5a, Warsaw, Poland |
| 推荐引用方式 GB/T 7714 | Li, Ran,Frenk, Carlos S.,Cole, Shaun,et al. Constraints on the identity of the dark matter from strong gravitational lenses[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,460(1):363-372. |
| APA | Li, Ran,Frenk, Carlos S.,Cole, Shaun,Gao, Liang,Bose, Sownak,&Hellwing, Wojciech A..(2016).Constraints on the identity of the dark matter from strong gravitational lenses.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,460(1),363-372. |
| MLA | Li, Ran,et al."Constraints on the identity of the dark matter from strong gravitational lenses".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 460.1(2016):363-372. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。