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Proceedings Paper

Gemini Planet Imager observational calibrations XI: pipeline improvements and enhanced calibrations after two years on sky
Author(s): 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-Blanchaer; Eric Nielsen; Abhijith Rajan; Julien Rameau; Fredrik T. Rantakyro; Jean-Baptiste Ruffio; Kimberly Ward-Duong; Schuyler G. Wolff; Joseph Zalesky
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Paper 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.

Paper Details

Date Published: 9 August 2016
PDF: 13 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 990837 (9 August 2016); doi: 10.1117/12.2233197
Show Author Affiliations
Marshall D. Perrin, Space Telescope Science Institute (United States)
Patrick Ingraham, Large Synoptic Survey Telescope (United States)
Katherine B. Follette, Kavli Institute for Particle Astrophysics and Cosmology, Stanford Univ. (United States)
Jérôme Maire, Dunlap Institute for Astronomy & Astrophysics, Univ. of Toronto (Canada)
Jason J. Wang, Univ. of California, Berkeley (United States)
Dmitry Savransky, Cornell Univ. (United States)
Pauline Arriaga, Univ. of California, Los Angeles (United States)
Vanessa P. Bailey, Kavli Institute for Particle Astrophysics and Cosmology, Stanford Univ. (United States)
Sebastian Bruzzone, Western Univ. (Canada)
Jeffrey K. Chilcote, Dunlap Institute for Astronomy & Astrophysics, Univ. of Toronto (Canada)
Robert J. De Rosa, Univ. of California, Berkeley (United States)
Zachary H. Draper, Univ. of Victoria (Canada)
Michael P. Fitzgerald, Univ. of California, Los Angeles (United States)
Alexandra Z. Greenbaum, Johns Hopkins Univ. (United States)
Space Telescope Science Institute (United States)
Li-Wei Hung, Univ. of California, Los Angeles (United States)
Quinn Konopacky, Univ. of California, San Diego (United States)
Bruce Macintosh, Kavli Institute for Particle Astrophysics and Cosmology, Stanford Univ. (United States)
Franck Marchis, SETI Institute (United States)
Christian Marois, NRC - Herzberg Astronomy & Astrophysics (Canada)
Univ. of Victoria (United States)
Maxwell A. Millar-Blanchaer, Univ. of Toronto (Canada)
Dunlap Institute for Astronomy & Astrophysics, Univ. of Toronto (Canada)
Eric Nielsen, SETI Institute (United States)
Kavli Institute for Particle Astrophysics and Cosmology, Stanford Univ. (United States)
Abhijith Rajan, Arizona State Univ. (United States)
Julien Rameau, Univ. de Montréal (Canada)
Fredrik T. Rantakyro, Gemini Observatory (Chile)
Jean-Baptiste Ruffio, Kavli Institute for Particle Astrophysics and Cosmology, Stanford Univ. (United States)
Kimberly Ward-Duong, Arizona State Univ. (United States)
Schuyler G. Wolff, Johns Hopkins Univ. (United States)
Space Telescope Science Institute (United States)
Joseph Zalesky, Univ. of California, Berkeley (United States)


Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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