摘要
在文献[1]的基础上,根据近年天文选址实践中提出的问题,先进一步讨论了大气相干直径和时间的定义和物理意义,然后强调了自由大气湍流的天文成像效应及选址中进行研究和测量的重要性。最后对差分像运动方法测量视宁度的定标和系统误差等问题作了分析。
Based on Paper [1] and with the problems arising from the practice of the site testing in recent years, the definition and the physical meaning of the atmospheric coherence diameter and time are further discussed in this paper, Then, the effect of the free atmospheric turbulence on the astronomical imaging and the driportance of its investigation and determination are emphasised.Finally, the questions on calibration and systematic error et cetera in the seeing measurements by using the method of the differential image motion are analysed.
出处
《天文学进展》
CSCD
北大核心
1996年第3期175-180,共6页
Progress In Astronomy