An Imaging Spectrometer for Long-Term Studies of Emission-Line Objects

我们计划完成一台成像法布里-珀罗光谱仪(IFPS)的建造和实施，该光谱仪将用于洛厄尔天文台的8.1米珀金斯望远镜对发射线天体的长期研究。各种光谱分辨率从R=1200到R=20,000的标准具将被用来获得活动星系核、星暴星系、不规则星系和星系发射星云(H II区、行星和超新星残留物)的二维光谱，以研究空间分辨天体的速度场和物理条件的变化。定制设计的光学系统使我们能够使用IFPS，从光谱的近紫外区到远红区。高通量系统、稳定的高量子效率探测器和大量的观测时间相结合，将使基础天体物理学中的重要问题能够用中口径望远镜来解决。

We propose to complete construction and implementation of an Imaging Fabry-Perot Spectrometer (IFPS) which will be used in long- term studies of emission-line objects with the 8.1-m Perkins Telescope at Lowell Observatory. A variety of etalons with spectral resolution from R = 1200 to R = 20,000 will be used to obtain two-dimensional spectroscopy of active galactic nuclei, starburst galaxies, irregular galaxies, and galactic emission nebulate (H II regions, planetaries, and supernova remnants) in order to study the velocity fields and variations in physical conditions across spatially resolved objects. A custom-designed optical system enables us to use the IFPS from the near ultraviolet to the far red region of the optical spectrum. The combination of a high-throughput system, a stable, high quantum efficiency detector, and significant amounts of observing time will allow important problems in fundamental astrophysics to be addressed with a moderate-aperture telescope.