The VVDS data-reduction pipeline: Introducing VIPGI, the VIMOS interactive pipeline and graphical interface
Articolo
Data di Pubblicazione:
2005
Citazione:
The VVDS data-reduction pipeline: Introducing VIPGI, the VIMOS interactive pipeline and graphical interface / M. Scodeggio, P. Franzetti, B. Garilli, A. Zanichelli, S. Paltani, D. Maccagni, D. Bottini, V. Le Brun, T. Contini, R. Scaramella, C. Adami, S. Bardelli, E. Zucca, L. Tresse, O. Ilbert, S. Foucaud, A. Lovino, R. Merighi, G. Zamorani, I. Gavignaud, D. Rlzzo, H.J. Mccracken, O. Le Fèvre, J.P. Plcat, G. Vettolani, M. Arnaboldi, S. Arnouts, M. Bolzonella, A. Cappi, S. Charlot, P. Clliegi, L. Guzzo, B. Marano, C. Marinoni, G. Mathez, A. Mazure, B. Meneux, R. Pellò, A. Pollo, L. Pozzetti, M. Radovich. - In: PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC. - ISSN 0004-6280. - 117:837(2005), pp. 1284-1295.
Abstract:
The VIMOS VLT Deep Survey (VVDS), designed to measure 150,000 galaxy redshifts, requires a dedicated data reduction and analysis pipeline to process in a timely fashion the large amount of spectroscopic data being produced. This requirement has lead to the development of the VIMOS Interactive Pipeline and Graphical Interface (VIPGI), a new software package designed to simplify to a very high degree the task of reducing astronomical data obtained with VIMOS (Visible Multi-Object Spectrograph), the imaging spectrograph built by the VIRMOS Consortium for the European Southern Observatory and mounted on Unit 3 (Melipal) of the VLT (Very Large Telescope) at Paranal Observatory (Chile). VIPGI provides the astronomer with specially designed VIMOS data-reduction functions, a VIMOS-centric data organizer, and dedicated data browsing and plotting tools, which can be used to verify the quality and accuracy of the various stages of the data-reduction process. The quality and accuracy of the data-reduction pipeline are comparable to those obtained using wellknown IRAF tasks, but the speed of the data-reduction process is significantly increased, because of the dedicated nature of VIPGI. In this paper we discuss the details of the multiobject spectroscopy (MOS) data-reduction pipeline that has been implemented in VIPGI, as applied to the reduction of some 20,000 VVDS spectra, quantitatively assessing the accuracy of the various reduction steps. We also provide a more general overview of VIPGI capabilities, a tool that can be used for the reduction of any kind of VIMOS data.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Digital sky survey; redshift survey; extraction; software; spectra; VLT
Elenco autori:
M. Scodeggio, P. Franzetti, B. Garilli, A. Zanichelli, S. Paltani, D. Maccagni, D. Bottini, V. Le Brun, T. Contini, R. Scaramella, C. Adami, S. Bardelli, E. Zucca, L. Tresse, O. Ilbert, S. Foucaud, A. Lovino, R. Merighi, G. Zamorani, I. Gavignaud, D. Rlzzo, H.J. Mccracken, O. Le Fèvre, J.P. Plcat, G. Vettolani, M. Arnaboldi, S. Arnouts, M. Bolzonella, A. Cappi, S. Charlot, P. Clliegi, L. Guzzo, B. Marano, C. Marinoni, G. Mathez, A. Mazure, B. Meneux, R. Pellò, A. Pollo, L. Pozzetti, M. Radovich
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