摘要
本文详细计算了在不同的观测条件下（大气视宁度，天光背景），对于不同的观测对象（椭圆星系、旋涡星系和恒星等）光纤定位中心位置偏差对光谱观测结果的影响．根据ＬＡＭＯＳＴ的主要设计参数，给出了在不同条件下观测所得信噪比的具体数值结果．
The effect of fiber decentering on spectroscopic observations of typical galaxies, under different seeing conditions and sky background, has been estimated. Based on the LAMOST design parameters, the signal to noise values under various observing conditions are presented. The predicted signal to noise ratios during relevant observations as a function of fiber diameter are also given in this paper.
基金
国家自然科学基金
