Gemini Planet Imager observational calibrations I: Overview of the GPI data reduction pipeline

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DOIResolve DOI: http://doi.org/10.1117/12.2055246
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TypeArticle
Proceedings titleSPIE - International Society for Optical Engineering. Proceedings
ConferenceGround-Based and Airborne Instrumentation for Astronomy V, 22 June 2014 through 26 June 2014
ISSN0277-786X
ISBN9780819496157
Volume9147
Article number91473J
SubjectAstronomy; Calibration; Data handling; Extrasolar planets; Open source software; Pipelines; Polarimeters; Spectrographs; Exo-planets; High contrast imaging; Integral field spectrograph; Integral Field Spectroscopy; Polarization modes; Reduction systems; Scientific analysis; Data reduction
AbstractThe Gemini Planet Imager (GPI) has as its science instrument an infrared integral field spectrograph/polarimeter (IFS). Integral field spectrographs are scientificially powerful but require sophisticated data reduction systems. For GPI to achieve its scientific goals of exoplanet and disk characterization, IFS data must be reconstructed into high quality astrometrically and photometrically accurate datacubes in both spectral and polarization modes, via flexible software that is usable by the broad Gemini community. The data reduction pipeline developed by the GPI instrument team to meet these needs is now publicly available following GPI's commissioning. This paper, the first of a series, provides a broad overview of GPI data reduction, summarizes key steps, and presents the overall software framework and implementation. Subsequent papers describe in more detail the algorithms necessary for calibrating GPI data. The GPI data reduction pipeline is open source, available from planetimager.org, and will continue to be enhanced throughout the life of the instrument. It implements an extensive suite of task primitives that can be assembled into reduction recipes to produce calibrated datasets ready for scientific analysis. Angular, spectral, and polarimetric differential imaging are supported. Graphical tools automate the production and editing of recipes, an integrated calibration database manages reference files, and an interactive data viewer customized for high contrast imaging allows for exploration and manipulation of data.
Publication date
PublisherSPIE
LanguageEnglish
AffiliationNational Research Council Canada; National Science Infrastructure
Peer reviewedYes
NPARC number21275602
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Record identifier6e015f7c-f6c6-4954-ab43-4551027be3f6
Record created2015-07-14
Record modified2017-04-24
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