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Proceedings Paper

The optical design of CHARIS: an exoplanet IFS for the Subaru telescope
Author(s): Mary Anne Peters-Limbach; Tyler D. Groff; N. Jeremy Kasdin; Dave Driscoll; Michael Galvin; Allen Foster; Michael A. Carr; Dave LeClerc; Rad Fagan; Michael W. McElwain; Gillian Knapp; Timothy Brandt; Markus Janson; Olivier Guyon; Nemanja Jovanovic; Frantz Martinache; Masahiko Hayashi; Naruhisa Takato
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Paper Abstract

High-contrast imaging techniques now make possible both imaging and spectroscopy of planets around nearby stars. We present the optical design for the Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS), a lenslet-based, cryogenic integral field spectrograph (IFS) for imaging exoplanets on the Subaru telescope. The IFS will provide spectral information for 138 × 138 spatial elements over a 2.07 arcsec × 2.07 arcsec field of view (FOV). CHARIS will operate in the near infrared (λ = 1.15 - 2.5μm) and will feature two spectral resolution modes of R ~ 18 (low-res mode) and R ~ 73 (high-res mode). Taking advantage of the Subaru telescope adaptive optics systems and coronagraphs (AO188 and SCExAO), CHARIS will provide sufficient contrast to obtain spectra of young self-luminous Jupiter-mass exoplanets. CHARIS will undergo CDR in October 2013 and is projected to have first light by the end of 2015. We report here on the current optical design of CHARIS and its unique innovations.

Paper Details

Date Published: 26 September 2013
PDF: 15 pages
Proc. SPIE 8864, Techniques and Instrumentation for Detection of Exoplanets VI, 88641N (26 September 2013); doi: 10.1117/12.2024070
Show Author Affiliations
Mary Anne Peters-Limbach, Princeton Univ. (United States)
Tyler D. Groff, Princeton Univ. (United States)
N. Jeremy Kasdin, Princeton Univ. (United States)
Dave Driscoll, L-3 Communications IOS-SSG (United States)
Michael Galvin, Princeton Univ. (United States)
Allen Foster, The Pennsylvania State Univ. (United States)
Michael A. Carr, Princeton Univ. (United States)
Dave LeClerc, L-3 Communications IOS-SSG (United States)
Rad Fagan, L-3 Communications IOS-SSG (United States)
Michael W. McElwain, NASA Goddard Space Flight Ctr. (United States)
Gillian Knapp, Princeton Univ. (United States)
Timothy Brandt, Princeton Univ. (United States)
Markus Janson, Princeton Univ. (United States)
Olivier Guyon, Subaru Telescope, National Astronomical Observatory of Japan (United States)
Nemanja Jovanovic, Subaru Telescope, National Astronomical Observatory of Japan (United States)
Frantz Martinache, Subaru Telescope, National Astronomical Observatory of Japan (United States)
Masahiko Hayashi, Subaru Telescope, National Astronomical Observatory of Japan (United States)
Naruhisa Takato, Subaru Telescope, National Astronomical Observatory of Japan (United States)


Published in SPIE Proceedings Vol. 8864:
Techniques and Instrumentation for Detection of Exoplanets VI
Stuart Shaklan, Editor(s)

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