In the last 30 years, our research has focused on laboratory measurements of the electronic spectra of organic radicals and ions. Many of the species investigated were selected based on their potential astrophysical relevance, particularly in connection with the identification of appealing candidate molecules for the diffuse interstellar absorptions. Notably, carbon chains and derivatives containing hydrogen and nitrogen atoms in their neutral and ionic forms were studied. These data could be obtained after developing appropriate techniques to record spectra at low temperatures relevant to the interstellar medium. The measurement of gas phase laboratory spectra has enabled direct comparisons with astronomical data to be made and though many species were found to have electronic transitions in the visible where the majority of diffuse bands are observed, none of the absorptions matched the prominent interstellar features. In 2015, however, the first carrier molecule was identified: C+60. This was achieved after the measurement of the electronic spectrum of C+60–He at 6K in a radiofrequency ion trap.\ud
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机译：在过去的30年中，我们的研究重点是对有机自由基和离子的电子光谱进行实验室测量。选择的许多物种是根据其潜在的天体物理学相关性来选择的，尤其是与识别散布星际吸收的有吸引力的候选分子有关的物种。值得注意的是，研究了以中性和离子形式含有氢和氮原子的碳链和衍生物。这些数据可以在开发出适当的技术以在与星际介质有关的低温下记录光谱后获得。气相实验室光谱的测量可以直接与天文数据进行比较，尽管发现许多物种在可见光中具有电子跃迁，并且观察到大多数散射带，但没有一个吸收与星际特征相匹配。但是，在2015年，发现了第一个载体分子：C + 60。这是在射频离子阱中测量6K时C + 60–He的电子光谱后实现的。\ ud
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