Upgrading the Gemini Planet Imager: GPI 2.0

TL;DR

This paper discusses proposed upgrades to the Gemini Planet Imager, including new sensors and coronagraph designs, to improve its ability to detect and study exoplanets, especially if moved to Gemini North.

Contribution

It introduces specific hardware and optical upgrades to GPI, enhancing its detection capabilities and enabling new scientific investigations.

Findings

Enhanced detection sensitivity with new wavefront sensor.

Improved contrast with advanced coronagraph designs.

Potential for new science programs with upgraded GPI.

Abstract

The Gemini Planet Imager (GPI) is the dedicated high-contrast imaging facility, located on Gemini South, designed for the direct detection and characterization of young Jupiter mass exoplanets. In 2019, Gemini is considering moving GPI from Gemini South to Gemini North. Analysis of GPI's as-built performance has highlighted several key areas of improvement to its detection capabilities while leveraging its current capabilities as a facility class instrument. We present the proposed upgrades which include a pyramid wavefront sensor, broadband low spectral resolution prisms and new apodized-pupil Lyot coronagraph designs all of which will enhance the current science capabilities while enabling new science programs.