Mapping dark matter with cosmic magnification
文献类型：期刊论文
| 作者 | Zhang, PJ; Pen, UL |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2005-12-09 |
| 卷号 | 95期号:24页码:241302 |
| 英文摘要 | We develop a new tool to generate statistically precise dark matter maps from the cosmic magnification of galaxies with distance estimates. We show how to overcome the intrinsic clustering problem using the slope of the luminosity function, because magnification changes strongly over the luminosity function, while intrinsic clustering only changes weakly. This may allow precision cosmology beyond most current systematic limitations. The Square Kilometre Array is able to reconstruct the projected matter density map at smoothing scale similar to 10' with S/N >= 1, at the rate of 200-4000 deg(2) per year, depending on the abundance and evolution of 21 cm emitting galaxies. This power of mapping dark matter is comparable to, or even better than, that of cosmic shear from deep optical surveys or 21 cm surveys. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | LARGE-SCALE STRUCTURE ; WEAK ; GALAXIES ; RECONSTRUCTION ; EVOLUTION ; SKEWNESS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000233826100014 |
| 公开日期 | 2010-11-08 |
| 源URL | [http://119.78.226.72//handle/331011/11933]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai, Peoples R China 3.Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada |
| 推荐引用方式 GB/T 7714 | Zhang, PJ,Pen, UL. Mapping dark matter with cosmic magnification[J]. PHYSICAL REVIEW LETTERS,2005,95(24):241302. |
| APA | Zhang, PJ,&Pen, UL.(2005).Mapping dark matter with cosmic magnification.PHYSICAL REVIEW LETTERS,95(24),241302. |
| MLA | Zhang, PJ,et al."Mapping dark matter with cosmic magnification".PHYSICAL REVIEW LETTERS 95.24(2005):241302. |
入库方式： OAI收割
来源：上海天文台
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