The studies in astronomy and atmosphere require much information of molecular absorption spectra, which have stimulated spectroscopists to do more experimental and theoretical research. 高灵敏度和高分辨率光谱技术的发展让科学家们得以精细地获得分子光谱,了解分子内部的精细相互作用。天文学和大气学的研究需要分子吸收光谱的信息,吸引光谱学家们的实验和理论研究。