A Laboratory for Fourier Transform Spectroscopy at the National Solar Observatory

来自许多美国和外国机构的科学家将使用基特峰国家太阳天文台的高分辨率傅立叶变换光谱仪。实验物理化学计划的持续支持将促进各种项目的发展，包括自由基和分子离子的高分辨率光谱、原子光谱、实验室天体物理学、大气光谱和大气成分的长期监测。五个代表性用户提出的研究建议包括热水分子的红外吸收和发射研究；在一定压力和温度下测量二氧化碳和其他温室气体，以改进对行星大气中这些气体的远程监测；含硼活性小分子的表征；精确测定重元素的原子跃迁概率，以确定它们在恒星中的丰度；以及对低温条件下甲烷光谱的详细研究，以改进外行星大气的建模。该奖项将为一般用途提供一台具有独特能力的光谱仪，用于获得电磁波谱的红外、近红外、可见光和紫外区域的高分辨率光谱。对这台仪器的研究将有助于解决天体物理学的问题，并有助于我们对地球大气层的理解。该设施将继续鼓励本科研究人员和主要研究人员的参与，主要来自本科院校。

Scientists from many US and foreign institutions will use the high-resolution Fourier transform spectrometer of the National Solar Observatory at Kitt Peak. Continuation of support from the Experimental Physical Chemistry Program will facilitate a diverse array of projects, including the high-resolution spectroscopy of free radicals and molecular ions, the spectroscopy of atoms, laboratory astrophysics, atmospheric spectroscopy, and the long-term monitoring of atmospheric constituents. Research proposals from five representative users include infrared absorption and emission studies of hot water molecules; the measurement of carbon dioxide and other greenhouse gases under a range of pressures and temperatures to improve the remote monitoring of these gases in planetary atmospheres; the characterization of small, reactive molecules containing boron; the precise determination of atomic transition probabilities of heavy elements to determine their abundances in stars; and detailed studies of the spectroscopy of methane under low temperature conditions to improve the modeling of atmospheres of the outer planetsThis award will make available for general use a spectrometer with unique capabilities for obtaining high-resolution spectra in the infrared, near infrared, visible, and ultraviolet regions of the electromagnetic spectrum. Studies on this instrument will contribute to solving problems of astrophysical interest as well as contribute to our understanding of the earth's atmosphere. The facility will continue to encourage the participation of undergraduate researchers and principal investigators from predominantly undergraduate institutions.