Molecular Observation in Interstellar Space and Laboratory Spectroscopy of Molecular Ions and Other Exotic Molecules

这是一个对简单分子离子的分子光谱进行天文和实验室相结合研究的持续项目。我们将寻求一些方向。1)继续对H~(3+)及相关分子进行天文光谱分析，以便更全面地揭示星际扩散介质的化学组成。2)基于计算机控制的色心激光的新型离子光谱仪将用于C3H3+、CH2NH2+等具有天体物理意义的分子离子的振动旋转光谱。3)实验室光谱将被推到较短的波长区域，以适应从密云天文观测到漫反射云的变化。作为理论研究的基准，H3+的泛音将是新测量的第一个焦点。这个多学科的项目由数学和物理科学局的物理、化学和天文科学部联合支持。

This is a continuing project in the combination astronomical and laboratory studies of the molecular spectroscopy of simple molecular ions. A number of directions will be pursued. 1) Astronomical spectroscopy of H3+ and related molecules will be continued in order to reveal a more complete picture of the chemistry of the diffuse interstellar medium. 2) A new ion spectrometer based on a computer-controlled color center laser will be used for vibration rotation spectroscopy of molecular ions of astrophysical interest such as C3H3+, CH2NH2+, etc. 3) The laboratory spectroscopy will be pushed to shorter wavelength regions to correspond to a change from astronomical observation in dense clouds to diffuse clouds. Overtones of H3+, a benchmark for theoretical studies, will be the first focus of the new measurements. This multi-disciplinary project is supported jointly by the Divisions of Physics, Chemistry, and Astronomical Sciences in the Mathematical and Physical Sciences Directorates.