Gas phase studies of astrophysically relevant biomolecules

本项目的目标是在类似于星际空间中遇到的条件下对天体物理学相关的生物分子进行实验室研究。为了解释天文观测和支持天体物理模型，需要精确和全面的分子能级和跃迁的实验室数据。由天文模型提出的分子光谱必须在实验室中从紫外到红外波长的整个光谱范围内精确测量，以便观测者可以使用结果来搜索星际光谱中的指纹。将结合超音速射流和灵敏的激光光谱技术，对天体生物学重要的复杂有机分子进行气相研究。在低温和无碰撞条件下获得相关分子的电子和振动光谱。为了对这种复杂分子进行完整的光谱研究，还将进行光谱量子化学计算，并与实验数据进行比较。

The objectives of the present project are laboratory studies on astrophysically relevant biomolecules under conditions similar to those encountered in interstellar space. Accurate and comprehensive laboratory data on molecular energy levels and transitions are needed to explain the astronomical observations and support the astrophysical models. The spectrum of a molecule, proposed by astronomical models, must be accurately measured in the laboratory in the entire spectral range from UV to IR wavelengths so that the results can be used by observers to search for these fingerprints in interstellar spectra. Gas-phase studies of complex organic molecules important for astrobiology will be performed, combining supersonic jets and sensitive laser spectroscopy techniques. The electronic and vibrational spectra of relevant molecules are to be obtained at low temperature and under collision-free conditions. For a complete spectroscopic study of such complex molecules, spectral quantum chemical calculations will also be performed and compared with the experimental data.