Development of multi-conjugate adaptive optics system for monitoring of solar system planets
Development of multi-conjugate adaptive optics system for monitoring of solar system planets
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开发用于监测太阳系行星的多共轭自适应光学系统
DOI：
10.1117/12.2561196
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Kawabata Koji S.
中科院分区：
文献类型：
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作者：
Watanabe Makoto;Oya Shin;Goda Shuhei;Nakamoto Jumpei;Teraji Keisuke;Ishikoso Hiroaki;Morisada Shouta;Kamakari Hiroshi R.;Mizukose Fuka;Yamane Hiromasa;Sagisaka Kanta;Yokoyama Masaru;Kawabata Koji S.
我们正在开发一种多共轭自适应光学(MCAO)系统，用于监测太阳系行星的观测。该MCAO系统目前的目标是在日本中等能见度(1-2角秒)的1.5米级望远镜(北海道大学的1.6米皮尔卡望远镜和广岛大学的1.5米Kanata望远镜)上，适度提高行星图像在可见光波长(0.5-1微米)约50角秒视野内的空间分辨率(几十分之一角秒)。该系统由两个140元MEMS可变形反射镜和四个11×11子孔径的ShackHartmann波前传感器组成，它们的视场约为16×16角秒。波前将通过对行星上的图案进行相关跟踪来测量，例如木星的云，就像太阳自适应光学系统中的相似之处。该系统已基本建成，目前正在实验室进行测试，我们计划在2021年进行测试观测。我们描述了我们用于连续行星成像的MCAO系统的设计、结构、预期性能和现状。
We are developing a multi-conjugate adaptive optics (MCAO) system for monitoring observations of the solar system planets. The current goal of this MCAO system is a moderate improvement of spatial resolution (several tenths of an arcsecond) of the planetary image over about 50-arcsec field of view in the visible wavelength (0.5–1 µm) for 1.5-m class telescopes (1.6-m Pirka telescope of Hokkaido University and 1.5-m Kanata telescope of Hiroshima University) at moderate seeing (1–2 arcsec) sites in Japan. The system has two 140-element MEMS deformable mirrors, which conjugate the telescope pupil and 2.6 km altitude, and four 11×11-subaperture ShackHartmann wavefront sensors with a field of view of about 16 × 16 arcsec. The wavefronts would be measured by the correlation tracking of the patterns on the planet such as the clouds of Jupiter, as similar in the solar adaptive optics systems. The system have been mostly constructed and is currently being tested in the laboratory, and we are planning test observations in 2021. We describe the design, construction, expected performance, and current status of our MCAO system for continuous planetary imaging.