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Proceedings Paper

ORBS: A data reduction software for the imaging Fourier transform spectrometers SpIOMM and SITELLE
Author(s): T. Martin; L. Drissen; G. Joncas
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Paper Abstract

SpIOMM (Spectromètre-Imageur de l'Observatoire du Mont Mégantic) is still the only operational astronomical Imaging Fourier Transform Spectrometer (IFTS) capable of obtaining the visible spectrum of every source of light in a field of view of 12 arc-minutes. Even if it has been designed to work with both outputs of the Michelson interferometer, up to now only one output has been used. Here we present ORBS (Outils de Réduction Binoculaire pour SpIOMM/SITELLE), the reduction software we designed in order to take advantage of the two output data. ORBS will also be used to reduce the data of SITELLE (Spectromètre-Imageur pour l' Étude en Long et en Large des raies d' Émissions) { the direct successor of SpIOMM, which will be in operation at the Canada-France- Hawaii Telescope (CFHT) in early 2013. SITELLE will deliver larger data cubes than SpIOMM (up to 2 cubes of 34 Go each). We thus have made a strong effort in optimizing its performance efficiency in terms of speed and memory usage in order to ensure the best compliance with the quality characteristics discussed with the CFHT team. As a result ORBS is now capable of reducing 68 Go of data in less than 20 hours using only 5 Go of random-access memory (RAM).

Paper Details

Date Published: 24 September 2012
PDF: 9 pages
Proc. SPIE 8451, Software and Cyberinfrastructure for Astronomy II, 84513K (24 September 2012); doi: 10.1117/12.925420
Show Author Affiliations
T. Martin, Univ. Laval (Canada)
L. Drissen, Univ. Laval (Canada)
G. Joncas, Univ. Laval (Canada)

Published in SPIE Proceedings Vol. 8451:
Software and Cyberinfrastructure for Astronomy II
Nicole M. Radziwill; Gianluca Chiozzi, Editor(s)

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