Cross-correlation of Far-infrared Background Anisotropies and CMB Lensing from Herschel and Planck Satellites
文献类型：期刊论文
| 作者 | Cao,Ye2,5; Gong,Yan5 ; Feng,Chang3,4; Cooray,Asantha4; Cheng,Gong2,6; Chen,Xuelei1,2,6
|
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 901期号:1 |
| 关键词 | Cosmology Large-scale structure of the universe |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/abada1 |
| 英文摘要 | Abstract The cosmic infrared background (CIB) anisotropies and cosmic microwave background (CMB) lensing are powerful measurements for exploring cosmological and astrophysical problems. In this work, we measure the autocorrelation power spectrum of the CIB anisotropies in the Herschel–SPIRE HerMES Large Mode Survey (HeLMS) field, and the cross-power spectrum with the CMB lensing measurements from the Planck satellite. The HeLMS field covers more than 270 deg2, which is much larger than in previous analysis. We use the Herschel Level 1 time stream data to merge the CIB maps at 250, 350, and 500 μm bands, and mask the areas where the flux is greater than or there are no measured data. We obtain the final CIB power spectra at 100?≤???≤?20,000 by considering several effects, such as beam function, mode coupling, transfer function, and so on. We also calculate the theoretical CIB auto- and cross-power spectra of CIB and CMB lensing by assuming that the CIB emissivity follows a Gaussian distribution in redshift. We find that, for the CIB auto-power spectra, we obtain signal-to-noise ratios (S/Ns) of 15.9, 15.7, and 15.3 at 250, 350, and 500 μm, and for the CIB ? CMB lensing power spectra, S/Ns of 7.5, 7.0, and 6.2 at 250, 350, and 500 μm, respectively. Comparing to previous works, the constraints on the relevant CIB parameters are improved by factors of 2–?5 in this study. |
| 语种 | 英语 |
| WOS记录号 | IOP:0004-637X-901-1-ABADA1 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/57561]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Center for High Energy Physics, Peking University, Beijing 100871, People’s Republic of China 2.School of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 3.Department of Physics, University of Illinois at Urbana-Champaign, 1110 W. Green Street, Urbana, IL 61801, USA 4.Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA 5.Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China 6.Key Laboratory of Computational Astrophysics, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Cao,Ye,Gong,Yan,Feng,Chang,et al. Cross-correlation of Far-infrared Background Anisotropies and CMB Lensing from Herschel and Planck Satellites[J]. The Astrophysical Journal,2020,901(1). |
| APA | Cao,Ye,Gong,Yan,Feng,Chang,Cooray,Asantha,Cheng,Gong,&Chen,Xuelei.(2020).Cross-correlation of Far-infrared Background Anisotropies and CMB Lensing from Herschel and Planck Satellites.The Astrophysical Journal,901(1). |
| MLA | Cao,Ye,et al."Cross-correlation of Far-infrared Background Anisotropies and CMB Lensing from Herschel and Planck Satellites".The Astrophysical Journal 901.1(2020). |
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。