Abstract We re-processed spectroscopic echelle data on 1999 S4 (LINIER), a catastrophically disintegrated comet, and 2001 Q4 (NEAT) obtained at not quite favorable circumstances. Photometric conditions at the observations were good but measurements of the spectra for the first one were performed at a large zenith distance and the second - with a relatively low spectral resolution. Nevertheless, we succeeded in detection and identification of fluorescent emission lines of 9 polycyclic aromatic hydrocarbons and simpler molecules in the spectra of both comets. Our results are in accordance with those of other authors and substantiate present notions about origin of the comets.

中文翻译：

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对 Shamakhy 天文台获得的 C/1999 S4 (LINEAR) 和 C/2001 Q4 (NEAT) 光谱数据的重新处理和新解释

摘要 我们重新处理了 1999 S4 (LINIER)（一颗灾难性解体彗星）和 2001 Q4 (NEAT) 在不太有利的情况下获得的光谱阶梯数据。观测时的测光条件良好，但第一个光谱的测量是在较大的天顶距离处进行的，而第二个光谱的光谱分辨率相对较低。尽管如此，我们还是成功地在两颗彗星的光谱中检测和识别了 9 种多环芳烃和更简单分子的荧光发射线。我们的结果与其他作者的结果一致，并证实了目前关于彗星起源的概念。