Rotation in gravitational lenses
文献类型：期刊论文
| 作者 | Pen, UL; Mao, SD
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2006-04-21 |
| 卷号 | 367期号:4页码:1543-1550 |
| 关键词 | gravitational lensing galaxies : evolution galaxies : structure cosmology : theory dark matter |
| 英文摘要 | Gravitational lensing deflects light. A single lens deflector can only shear images, but cannot induce rotations. Multiple lens planes can induce rotations. Such rotations can be observed in quadruply imaged sources, and can be used to distinguish between two proposed solutions of the flux anomaly problem: substructures in lensing galaxies versus large-scale structure. We predict the expected amount of rotation due to large-scale structure in strong lensing systems, and show how this effect can be measured using similar to mas very long baseline interferometry astrometry of quadruple lenses with extended source structures. The magnitude of rotation is around 1 degrees. The biggest theoretical uncertainty is the power spectrum of dark matter on very small scales. This procedure can potentially be turned around to measure the dark matter power spectrum on very small scales. We list the predicted rms rotation angles for several quadruple lenses with known lens and source redshifts. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000236606400017 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7143]  |
| 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, Beijing 100012, Peoples R China 2.Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada 3.Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England |
| 推荐引用方式 GB/T 7714 | Pen, UL,Mao, SD. Rotation in gravitational lenses[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2006,367(4):1543-1550. |
| APA | Pen, UL,&Mao, SD.(2006).Rotation in gravitational lenses.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,367(4),1543-1550. |
| MLA | Pen, UL,et al."Rotation in gravitational lenses".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 367.4(2006):1543-1550. |
入库方式： OAI收割
来源：国家天文台
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