Infrared Fourier spectrometer for laboratory use and for astronomical studies from aircraft and ground-based telescopes.

A portable, versatile, ir Fourier spectrometer is described that provides 0.5 cm(-1) spectral resolution in the 0.87-5.6-microm region. This spectrometer is employed in a varied program of astronomical observations from round-based telescopes and from the NASA 91.5-cm airborne ir telescope. A number of spectral results are presented to illustrate the performance of this spectrometer in astronomical applications.