Terahertz and Far-Infrared Windows Opened at Dome A, Antarctica
文献类型：期刊论文
| 作者 | Sheng-Cai Shi; Scott Paine; Qi-Jun Yao; Zhen-Hui Lin; Xin-Xing Li; Wen-Ying Duan; Hiroshi Matsuo; Qizhou Zhang; Ji Yang; M. C. B. Ashley |
| 刊名 | nature astronomy
 |
| 出版日期 | 2016 |
| 卷号 | 1期号:1页码:1-7 |
| 英文摘要 | The terahertz and far-infrared (FIR) band, from approximately 0.3 THz to 15 THz (1 mm to 20 micron), is important for astrophysics as the thermal radiation of much of the universe peaks at these wavelengths and many spectral lines that trace the cycle of interstellar matter also lie within this band. However, water vapor renders the terrestrial atmosphere opaque to this frequency band over nearly all of the Earth's surface. Early radiometric measurements below 1 THz at Dome A, the highest point of the cold and dry Antarctic ice sheet, suggest that it may offer the best possible access for ground-based astronomical observations in the terahertz and FIR band. To address uncertainty in radiative transfer modelling, we carried out measurements of atmospheric radiation from Dome A spanning the entire water vapor pure rotation band from 20 micron to 350 micron wavelength by a Fourier transform spectrometer. Our measurements expose atmospheric windows having significant transmission throughout this band. Furthermore, by combining our broadband spectra with auxiliary data on the atmospheric state over Dome A, we set new constraints on the spectral absorption of water vapor at upper tropospheric temperatures important for accurately modeling the terrestrial climate. In particular, we find that current spectral models significantly underestimate the H2O continuum absorption.Shi, Sheng-Cai; Paine, Scott; Yao, Qi-Jun; Lin, Zhen-Hui; Li, Xin-Xing; Duan, Wen-Ying; Matsuo, Hiroshi; Zhang, Qizhou; Yang, Ji; Ashley, M C B; Shang, Zhaohui; Hu, Zhong-Wen |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/16841]  |
| 专题 | 紫金山天文台_毫米波和亚毫米波技术实验室 |
| 推荐引用方式 GB/T 7714 | Sheng-Cai Shi,Scott Paine,Qi-Jun Yao,et al. Terahertz and Far-Infrared Windows Opened at Dome A, Antarctica[J]. nature astronomy,2016,1(1):1-7. |
| APA | Sheng-Cai Shi.,Scott Paine.,Qi-Jun Yao.,Zhen-Hui Lin.,Xin-Xing Li.,...&Zhong-Wen Hu.(2016).Terahertz and Far-Infrared Windows Opened at Dome A, Antarctica.nature astronomy,1(1),1-7. |
| MLA | Sheng-Cai Shi,et al."Terahertz and Far-Infrared Windows Opened at Dome A, Antarctica".nature astronomy 1.1(2016):1-7. |
入库方式： OAI收割
来源：紫金山天文台
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。