Imaging Fourier Transform Spectrometer for NGST

摘要

An imaging FTS would be capable of carryign outmany of the programmes in the DRM, namerly all those which require imaging and/or low psectral resolution wide field/multi-object spectroscopy. We reivew the DRM science areas, describing the relevance of an imaging FTS. Required instrumental capabilities are then derived from the science goals. Our compact camera and imaging FTS instruemtn design emphasizes simplicity with a single optical train covering a field 6x3 arcmin~2, with a fixed spatial sampling of 0.03 arcsec / pixel on a 12kx6k detector array.