Laboratory Detection of the Linear Cyanopolyyne HC11N
Laboratory Detection of the Linear Cyanopolyyne HC11N
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线性氰基聚炔 HC11N 的实验室检测
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
P. Thaddeus
中科院分区：
文献类型：
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作者：
M. Travers;M. C. McCarthy;P. Kalmus;C. Gottlieb;P. Thaddeus
氰基聚炔HC11N是最大的星际分子，已在实验室中检测到。它最近的微波转动跃迁频率比IRC +10216和TMC-1中确定的谱线低0.13%，因此可以得出结论，天文谱线完全是另一回事。我们的傅里叶变换分子束光谱仪测量的20个实验室线允许HC11N的整个微波光谱被确定为远优于1公里s-1的等效径向速度。在这些来源的已发表和未发表的光谱中，在正确的频率上搜索HC11N没有发现令人信服的候选谱线，但用现有的大型射电望远镜之一可能检测到。
The cyanopolyyne HC11N, the largest claimed interstellar molecule, has been detected in the laboratory. Its nearest microwave rotational transitions lie 0.13% lower in frequency than the lines identified in IRC +10216 and TMC-1, so it is concluded that the astronomical lines are something else entirely. The 20 laboratory lines measured with our Fourier transform molecular-beam spectrometer allow the entire microwave spectrum of HC11N to be determined to much better than 1 km s-1 in equivalent radial velocity. A search for HC11N at the correct frequencies in published and unpublished spectra of these sources has turned up no convincing candidate lines, but detection is probably possible with one of the existing large radio telescopes.