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Astronomical imaging Fourier spectroscopy at far-infrared wavelengths
Naylor, David A.; Gom, Brad G.; van der Wiel, Matthijs H. D. +1 more
The principles and practice of astronomical imaging Fourier transform spectroscopy (FTS) at far-infrared wavelengths are described. The MachâZehnder (MZ) interferometer design has been widely adopted for current and future imaging FTS instruments; we compare this design with two other common interferometer formats. Examples of three instruments …