Abstract
The imaging search for exoplanets is mainly limited by quasi-static speckle noise that have lifetimes between milliseconds and hours. Attempts to remove this noise using post-processing by building a point spread function (PSF) model from diversity in time, wavelength, and so-forth are limited to a small improvement due to the evolution of the noise along these same axes. The Calibration 2 (CAL2) system, being built by an international team, is a National Research Council of Canada (NRC) funded facility-class focal plane wavefront sensor for the Gemini Planet Imager 2 (GPI2) upgrade. The project consists of a complete rebuild of the GPI calibration (CAL) system. Based on the self-coherent camera concept and the FAST focal plane mask, a fraction of the near-infrared (NIR) science bandpass is extracted using a new dichroic wheel to perform focal plane wavefront sensing, with the goal to do science while also improving the contrast for the GPI2 IFS, up to a factor of 100x on bright stars. The project is at the final design review stage, and construction is expected to start summer/fall 2024, with assembly late fall 2024, and shipping to the Gemini North observatory middle of 2025.
Original language | English (US) |
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Title of host publication | Adaptive Optics Systems IX |
Editors | Kathryn J. Jackson, Dirk Schmidt, Elise Vernet |
Publisher | SPIE |
ISBN (Electronic) | 9781510675179 |
DOIs | |
State | Published - 2024 |
Event | Adaptive Optics Systems IX 2024 - Yokohama, Japan Duration: Jun 16 2024 → Jun 22 2024 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 13097 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | Adaptive Optics Systems IX 2024 |
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Country/Territory | Japan |
City | Yokohama |
Period | 06/16/24 → 06/22/24 |
Bibliographical note
Publisher Copyright:© 2024 SPIE.
Keywords
- Adaptive Optics
- Exoplanets
- High-Contrast
- Imaging
- Near-Infrared
- Nearby Stars
- Spectroscopy
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering