热门
Conceptual Design of High-resolution Ultra-stable Spectrograph for GTC
文献类型:会议论文
作者 | Zhang K(张凯); Zhu YT(朱永田); Wang J(王靓); Xiao D(肖东); Ye HQ(叶慧琪); Wang L(王磊); Wu Z(吴桢); Liu CC(刘成超); Hao ZB(郝志博); Zhang HT(章华涛) |
出版日期 | 2020-12 |
会议日期 | 2020-12-13 |
会议地点 | California, United States |
关键词 | Gran Telescopio Canarias High Resolution Spectrograph Exoplanet Precise Radial Velocity Measurement |
英文摘要 |
A joint project has been proposed by the Chinese and Spanish astronomy communities, to develop a high-resolution, ultrastable spectrograph for the Gran Telescopio Canarias (GTC) at La Palma. Being expected to conduct precise radial velocity (PRV) measurement with extreme precision of up to 10 cm s−1, the instrument would promote the very high, present interest in the astronomical community to detect and characterize exoplanets. The project successfully passed the conceptual design review (CoDR) in 2019. The instrument is composed of a near-UV band spectrograph (UVS) and a visible band spectrograph (VIS). They provide a spectral resolving power of R ≥100,000 in the visible band (420 nm – 780 nm), and R≥25,000 in the UV band (310 nm – 420 nm). The VIS subsystem will be enclosed in an ultra-stable environment in the Coudé room for the stellar precise radial velocity (PRV) measurements. The UVS subsystem will be located near the Nasmyth focus to improve the total throughput at the wavelength shorter than 400 nm, to ensure various additional science cases ranging from stellar evolution to the measurement of fundamental constants. This paper gives an overview of the project background, science cases, and technical considerations during the conceptual design phase. |
会议录 | Proc. of SPIE Vol. 11447 |
学科主题 | 天文技术与方法 |
语种 | 英语 |
源URL | [http://ir.niaot.ac.cn/handle/114a32/1775] |
专题 | 会议论文 |
作者单位 | 南京天文光学技术研究所 |
推荐引用方式 GB/T 7714 | Zhang K,Zhu YT,Wang J,et al. Conceptual Design of High-resolution Ultra-stable Spectrograph for GTC[C]. 见:. California, United States. 2020-12-13. |
入库方式: OAI收割
来源:南京天文光学技术研究所
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。