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Published December 13, 2020 | Version Submitted + Published
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GPI 2.0: Upgrades to the IFS including new spectral modes

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Abstract

The Gemini Planet Imager (GPI) is a high-contrast imaging instrument designed to directly image and characterize exoplanets. GPI is currently undergoing several upgrades to improve performance. In this paper, we discuss the upgrades to the GPI IFS. This primarily focuses on the design and performance improvements of new prisms and filters. This includes an improved high-resolution prism which will provide more evenly dispersed spectra across y, J, H and K-bands. Additionally, we discuss the design and implementation of a new low-resolution mode and prism which allow for imaging of all four bands (y, J, H and K-bands) simultaneously at R≈10. We explore the possibility of using a multiband filter which would block the light between the four spectral bands. We discuss possible performance improvements from the multiband filter, if implemented. Finally we explore the possibility of making small changes to the optical design to improve the IFS's performance near the edge of the field of view.

Additional Information

© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). The GPI 2.0 instrument upgrades are funded by NSF MRI Award Number 1920180. The GPI project has been supported by Gemini Observatory, which is operated by AURA, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the NSF (USA), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), MCTI (Brazil) and MINCYT (Argentina).

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Published - 114475D.pdf

Published - SPIE-AS20-b3e85438-44bd-ea11-8146-005056be4d05.pdf

Submitted - 2012.00792.pdf

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Additional details

Identifiers

Eprint ID
107258
Resolver ID
CaltechAUTHORS:20201222-141822676

Related works

Describes
https://arxiv.org/abs/2012.00792 (URL)

Funding

NSF
AST-1920180
Gemini Observatory
Association of Universities for Research in Astronomy (AURA)
Gemini Partnership

Dates

Created
2020-12-22
Created from EPrint's datestamp field
Updated
2021-11-16
Created from EPrint's last_modified field

Caltech Custom Metadata

Series Name
Proceedings of SPIE
Series Volume or Issue Number
11447