LAMOST 光纤光谱 校准精度 射线强度 天文望远镜 大天区面积 主成分分析 发射线Sky subtraction is a key technique in data reduction of multi-fiber spectra. Knowledge of characteristics related to the instrument is necessary to determine the method adopted in sky subtraction.In this study, we describe the...
Sky subtraction is the key technique in data reduction of multi-fiber\nspectra. Knowledge of the related instrument character is necessary to\ndetermine the method adopted in sky subtraction. In this study, we described\nthe sky subtraction method designed for LAMOST(Large sky Area Multi-Object\...
LAMOST光纤光谱校准精度射线强度天文望远镜大天区面积主成分分析发射线Sky subtraction is a key technique in data reduction of multi-fiber spectra. Knowledge of characteristics related to the instrument is necessary to determine the method adopted in sky subtraction.In this study, we describe the sky subtr...
subtractionAt present, most sky-subtraction methods focus on the full spectrum, not the particular location, especially for the backgroud sky around [OIII] line which is very important to low redshift quasars. A new method to precisely subtract sky lines in local region is proposed in the ...