论文标题
富含碳的原星云CRL 2688中的分子
Molecules in the carbon-rich protoplanetary nebula CRL 2688
论文作者
论文摘要
我们介绍了富含碳的原球星云（PPN）CRL 2688用30 m和2mm频段中的30 m望远镜制成的30 m望远镜制成的CRL 2688。总共检测到属于38种分子物种和同位素学的196个过渡线，据我们所知，该物体的第一个报告是153条过渡线和13种物种。此外，为了为未来的研究做出贡献，我们从文献中收集了有关CRL 2688分子线的观察数据，并将它们汇总为单个统一的目录。我们发现，CRL 2688的分子丰度无法通过折线包膜的标准模型来解释。讨论了金属含有分子对偶尔化学的影响。
We present observations of the carbon-rich protoplanetary nebula (PPN) CRL 2688 made with the Institut de Radioastronomie Millimetrique (IRAM) 30 m telescope in the 3mm and 2mm bands. In total, 196 transition lines belonging to 38 molecular species and isotopologues are detected, among which, to our best knowledge, 153 transition lines and 13 species are the first report for this object. Additionally, in order to contribute to future research, we have collected observational data on the molecular lines of CRL 2688 from the literature and compiled them into a single unified catalog. We find that the molecular abundance of CRL 2688 cannot be explained by the standard model of a circumstellar envelope. The implications of metal-bearing molecules on circumstellar chemistry are discussed.
