Mobile Differential Image Motion Monitor for Astroclimate Research

IF 1.3 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS
S. A. Potanin, E. A. Kopylov, A. D. Savvin
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引用次数: 0

Abstract

A differential image motion monitor (DIMM) has been developed and manufactured to study atmospheric seeing. The monitor is made in a lightweight field version and can operate without a telescope, as has always been the case before. Two apertures are made using 70-mm lenses with a focal distance of 900 mm. The distance between the aperture axes is 300 mm. The images from the apertures are combined in the plane of a single CMOS camera operating at up to 314 frames per second speed with low reading noise of about \(3e^{-}\). The device also includes a \(3^{\circ}\!\times\!3^{\circ}\) field of view viewer for pointing at a star. The monitor proved to work successfully during several astroclimate study expeditions. The monitor data were verified by comparing them with the results of atmospheric seeing measurements at the 2.5 meter telescope of the Caucasian Mountain Observatory.

Abstract Image

Abstract Image

用于天体气候研究的移动式差分图像运动监测器
摘要 已开发并制造出一种差分图像运动监测器(DIMM),用于研究大气层中的可见光。该监视器为轻型野外版本,可以像以前一样在没有望远镜的情况下工作。使用焦距为 900 毫米的 70 毫米透镜制作了两个光圈。光圈轴之间的距离为 300 毫米。来自光圈的图像在单个 CMOS 相机的平面上合成,相机的运行速度可达每秒 314 帧,读取噪声低,约为\(3e^{-}\)。该设备还包括一个(3^{\circ}\!\times\!3^{\circ}\)视场观察器,用于指向恒星。在几次天体气候研究考察中,该监测器都被证明工作得很成功。通过与高加索山天文台 2.5 米望远镜的大气视场测量结果进行比较,对监测器的数据进行了验证。
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来源期刊
Astrophysical Bulletin
Astrophysical Bulletin 地学天文-天文与天体物理
CiteScore
2.00
自引率
33.30%
发文量
31
审稿时长
>12 weeks
期刊介绍: Astrophysical Bulletin is an international peer reviewed journal that publishes the results of original research in various areas of modern astronomy and astrophysics, including observational and theoretical astrophysics, physics of the Sun, radio astronomy, stellar astronomy, extragalactic astronomy, cosmology, and astronomy methods and instrumentation.
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