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A comparison of Imaging Fourier Transform with Grating Spectrometry for Tridimensional Spectroscopy

Published online by Cambridge University Press:  12 April 2016

Peter L. Smith ,
Anne P. Thorne  and
W. H. Parkinson
Peter L. Smith
Affiliation:
Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Anne P. Thorne
Affiliation:
Blackett Laboratory, Imperial College, London SW7 2BZ, UK
W. H. Parkinson
Affiliation:
Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA

Abstract

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We compare the relative merits of four different types of instrument for tridimensional spectrometry at visible and ultraviolet wavelengths: the echelle and long-slit spectrographs and two types of Fourier transform spectrometer (conventional scanning and fixed tilt spatially heterodyned). Each of these instruments requires different spatial and spectral scanning modes. It is shown that in certain limiting conditions all four are equally efficient, but that they differ in other important characteristics.

Information

Type
4. Fourier Transform Spectroscopy
Information
International Astronomical Union Colloquium , Volume 149: Tridimensional Optical Spectroscopic Methods in Astrophysics , 1995 , pp. 328 - 331
Copyright
Copyright © Astronomical Society of the Pacific 1995

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