Data reduction and spectrophotometric performances of PUMA 1 - an on-line multiaperture spectroscopic system used at the CFHT

Details Data reduction and spectrophotometric performances of PUMA 1 - an on-line multiaperture spectroscopic system used at the CFHT Data reduction and spectrophotometric performances of PUMA 1 - an on-line multiaperture spectroscopic system used at the CFHT

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...184..361s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 184, no. 1-2, Oct. 1987, p. 361-372.

Computer Science

Performance

8

Astronomical Spectroscopy, Data Reduction, Galactic Clusters, Performance Prediction, Spectrophotometers, Telescopes, Atmospheric Attenuation, On-Line Systems, Signal To Noise Ratios, Spectrum Analysis, Synthetic Apertures

Scientific paper

This paper presents the on-line multiaperture spectroscopic system called PUMA 1, which was first used at the 3.60 m Canada-France-Hawaii Telescope. Following a short description of the observing procedure on the telescope, the software package developed for the reduction of multi-spectroscopic data is given in details. On the basis of data coming from a run in September 1985, the spectrophotometric performances obtained for extended objects like galaxies in high redshift clusters (z = 0.4) are discussed (from signal-to-noise ratio of the spectra to accuracy on radial velocity measurements). Basic instrumental and reduction references are given and a possible evolution is described.

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