A Transmission-Filter Coronagraph: Design and Test | |
DEQING REN; JIANGPEI DOU; YONGTIAN ZHU | |
2010-04-19 | |
Source Publication | Publications of the Astronomical Society of the Pacific |
Volume | 122Issue:891Pages:590-594 |
Abstract |
We propose a transmission-filter coronagraph for direct imaging of Jupiter-like exoplanets with ground-based telescopes. The coronagraph is based on a transmission filter that consists of finite number of transmission steps. A discrete optimization algorithm is proposed for the design of the transmission filter that is optimized for ground-based telescopes with central obstructions and spider structures.We discussed the algorithm that is applied for our coronagraph design. To demonstrate the performance of the coronagraph, a filter was manufactured and laboratory tests were conducted. The test results show that the coronagraph can achieve a high contrast of 106:5 at an inner working angle of 5λ=D, which indicates that our coronagraph can be immediately used for the direct imaging of Jupiter-like exoplanets with ground-based telescopes. |
Keyword | Transmission-filter Coronagraph |
Subject Area | 系外行星探测 |
WOS ID | WOS:000277175800009 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.niaot.ac.cn/handle/114a32/611 |
Collection | 期刊论文 |
Recommended Citation GB/T 7714 | DEQING REN,JIANGPEI DOU,YONGTIAN ZHU. A Transmission-Filter Coronagraph: Design and Test[J]. Publications of the Astronomical Society of the Pacific,2010,122(891):590-594. |
APA | DEQING REN,JIANGPEI DOU,&YONGTIAN ZHU.(2010).A Transmission-Filter Coronagraph: Design and Test.Publications of the Astronomical Society of the Pacific,122(891),590-594. |
MLA | DEQING REN,et al."A Transmission-Filter Coronagraph: Design and Test".Publications of the Astronomical Society of the Pacific 122.891(2010):590-594. |
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A Transmission-Filte(1165KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download |
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