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Spectral Classification from Low Dispersion Objective Prism spectra taken with the UK 1.2m Schmidt Telescope

Published online by Cambridge University Press:  12 April 2016

K. Nandy
K. Nandy*
Affiliation:
Royal Observatory, Edinburgh

Abstract

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A thin prism (with a dispersion of 2480 Å/mm at Hγ and Hβ) is now available for the UK 1.2m Schmidt telescope. Å 60-min. unwidened exposure on a Ilia-J (hypersensitized) emulsion reaches fainter than 20 mag. The spectra are measured and digitised with the fast measuring machine COSMOS. A method to determine the red shift of faint galaxies and the spectral classes of faint stars and galaxies from the digitised spectra will be described.

Type
V Classification related Spectrophotometry by Classical Techniques and by New Registration and Detection Methods
Information
International Astronomical Union Colloquium , Volume 47: Spectral Classification of the Future , 1979 , pp. 259 - 270
Copyright
Copyright © Vatican Observatory 1979

References

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