GPI 2.0: Upgrades to the IFS including new spectral modes

@article{Limbach2020GPI2U,
  title={GPI 2.0: Upgrades to the IFS including new spectral modes},
  author={M. Limbach and J. Chilcote and Q. Konopacky and R. D. Rosa and R. Hamper and B. Macintosh and C. Marois and M. Perrin and D. Savransky and J. V{\'e}ran and Jason J. Wang and Arlene Aleman},
  journal={arXiv: Instrumentation and Methods for Astrophysics},
  year={2020}
}
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… Expand

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The status of the proposed upgrades to GPI including a EMCCD-based pyramid wavefront sensor, broadband low spectral resolution prisms and new apodized-pupil Lyot coronagraph designs are presented and the expected performance improvements are discussed in the context of GPI 2.0's enhanced science capabilities. Expand
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