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Slitless Spectroscopy by Photographic and CCD Detectors Across Large Fields

Published online by Cambridge University Press:  26 July 2016

G. Comte  and
C. Surace
G. Comte
Affiliation:
Observatoire de Marseille, 2 Place Le Verrier, F-13248 Marseille Cedex 4, France
C. Surace
Affiliation:
Observatoire de Marseille, 2 Place Le Verrier, F-13248 Marseille Cedex 4, France

Abstract

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We present a new survey of emission line galaxies, performed with the ESO 1 m Schmidt telescope equipped with the 4° objective prism using IIIa-J photographic emulsion. The plates are digitized with the MAMA microdensitometer. A subsequent reduction of the block scans gives redshifts with a mean accuracy of 160 km/s−1, and spectrophotometric measurements of the intensity and equivalent widths of the principal emission lines. A brief discussion is given of the possible extension of quantitative reduction of slitless spectroscopy to archive plates and future large CCD array frames.

Type
Part Fourteen: Mapping the Large-Scale Structure
Information
Symposium - International Astronomical Union , Volume 161: Astronomy from Wide-Field Imaging , 1994 , pp. 709 - 714
Copyright
Copyright © Kluwer 1994 

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