Gemini Planet Imager observational calibrations XV: instrument calibrations after six years on sky
Contributors
Abstract
The Gemini Planet Imager (GPI) is a high-contrast adaptive optics instrument designed to detect and characterize substellar companions and circumstellar debris disks around nearby young stars using infrared integral field spectroscopy and polarimetry. GPI has been in routine operations at Gemini South for the past six years. Because precise astrometry and photometry of exoplanets is critical to GPI's science, we undertook extensive efforts both in-lab and on-sky to refine the astrometric and photometric calibration of the instrument. We describe revisions to the GPI Data Reduction Pipeline (DRP) that account for these revised calibrations, and that fix several issues identified over the previous six years, including some subtle issues affecting astrometric calibrations caused by a drift of the instrument's clock. These calibrations are critical for the interpretation of observations obtained with GPI, and for a comparison with measurements from other high-contrast imaging instruments.
Additional Information
© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). The authors were supported in part by NSF AST-1411868, AST-1518332, NASA NNX14AJ80G, NNX15AC89G, NNX15AD95G, NSSC17K0535, NNG16PJ24C, and NASA 80NSSC17K0535. J.R. benefited from Fonds de Recherche du Québec and is supported by the French National Research Agency in the framework of the Investissements d'Avenir program (ANR-15-IDEX-02), through the funding of the "Origin of Life" project of the Univ. Grenoble-Alpes. J.J.W. is supported by the Heising-Simons Foundation 51 Pegasi b postdoctoral fellowship. This work benefited from NASA's Nexus for Exoplanet System Science (NExSS) research coordination network sponsored by NASA's Science Mission Directorate. Based on observations obtained at the international Gemini Observatory, a program of NSF's NOIRLab, which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation on behalf of the Gemini Observatory partnership: the National Science Foundation (United States), National Research Council (Canada), Agencia Nacional de Investigación y Desarrollo (Chile), Ministerio de Ciencia, Tecnología e Innovación (Argentina), Ministério da Ciência, Tecnologia e Inovações (Brazil), and Korea Astronomy and Space Science Institute (Republic of Korea).Attached Files
Published - 114475A.pdf
Published - SPIE-AS20-d325772f-a804-ea11-813d-005056be4d05.pdf
Files
114475A.pdf
Additional details
Identifiers
- Eprint ID
- 107386
- Resolver ID
- CaltechAUTHORS:20210108-151411572
Funding
- NSF
- AST-1411868
- NSF
- AST-1518332
- NASA
- NNX14AJ80G
- NASA
- NNX15AC89G
- NASA
- NNX15AD95G
- NASA
- NSSC17K0535
- NASA
- NNG16PJ24C
- NASA
- 80NSSC17K0535
- Fonds de recherche du Québec - Nature et technologies (FRQNT)
- Agence Nationale pour la Recherche (ANR)
- ANR-15-IDEX-02
- University of Grenoble
- Heising-Simons Foundation
- 51 Pegasi b Fellowship
Dates
- Created
-
2021-01-09Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
Caltech Custom Metadata
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 11447