Gemini Planet Imager observational calibrations XI: Pipeline improvements and enhanced calibrations after two years on sky

Marshall D. Perrin*, Patrick Ingraham, Katherine B. Follette, Jérôme Maire, Jason J. Wang, Dmitry Savransky, Pauline Arriaga, Vanessa P. Bailey, Sebastian Bruzzone, Jeffrey K. Chilcote, Robert J. De Rosa, Zachary H. Draper, Michael P. Fitzgerald, Alexandra Z. Greenbaum, Li Wei Hung, Quinn Konopacky, Bruce Macintosh, Franck Marchis, Christian Marois, Maxwell A. Millar-BlanchaerEric Nielsen, Abhijith Rajan, Julien Rameau, Fredrik T. Rantakyro, Jean Baptiste Ruffio, Kimberly Ward-Duong, Schuyler G. Wolff, Joseph Zalesky

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

29 Scopus citations

Abstract

The Gemini Planet Imager has been successfully obtaining images and spectra of exoplanets, brown dwarfs, and debris and protoplanetary circumstellar disks using its integral field spectrograph and polarimeter. GPI observations are transformed from raw data into high-quality astrometrically and photometrically calibrated datacubes using the GPI Data Reduction Pipeline, an open-source software framework continuously developed by our team and available to the community. It uses a flexible system of reduction recipes composed of individual primitive steps, allowing substantial customization of processing depending upon science goals. This paper provides a broad overview of the GPI pipeline, summarizes key lessons learned, and describes improved calibration methods and new capabilities available in the latest version. Enhanced automation better supports observations at the telescope with streamlined and rapid data processing, for instance through real-time assessments of contrast performance and more automated calibration file processing. We have also incorporated the GPI Data Reduction Pipeline as one component in a larger automated data system to support the GPI Exoplanet Survey campaign, while retaining its flexibility and stand-alone capabilities to support the broader GPI observer community. Several accompanying papers describe in more detail specific aspects of the calibration of GPI data in both spectral and polarimetric modes.

Original languageEnglish (US)
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy VI
EditorsLuc Simard, Christopher J. Evans, Hideki Takami
PublisherSPIE
ISBN (Electronic)9781510601956
DOIs
StatePublished - 2016
EventGround-Based and Airborne Instrumentation for Astronomy VI - Edinburgh, United Kingdom
Duration: Jun 26 2016Jun 30 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9908
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceGround-Based and Airborne Instrumentation for Astronomy VI
Country/TerritoryUnited Kingdom
CityEdinburgh
Period6/26/166/30/16

Keywords

  • Data analysis
  • Data pipelines
  • High contrast
  • Integral field spectroscopy
  • Polarimetry

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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