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Proceedings Paper

Scientific design of a high contrast integral field spectrograph for the Subaru Telescope
Author(s): Michael W. McElwain; Timothy D. Brandt; Markus Janson; Gillian R Knapp; Mary Anne Peters; Adam S. Burrows; Alexis Carlotti; Michael A. Carr; Tyler Groff; James E. Gunn; Olivier Guyon; Masahiko Hayashi; N. Jeremy Kasdin; Masayuki Kuzuhara; Robert H. Lupton; Frantz Martinache; David Spiegel; Naruhisa Takato; Motohide Tamura; Edwin L. Turner; Robert J. Vanderbei
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Paper Abstract

Ground-based telescopes equipped with adaptive-optics (AO) systems and specialized science cameras are now capable of directly detecting extrasolar planets. We present the expected scientific capabilities of CHARIS, the Coronagraphic High Angular Resolution Imaging Spectrograph, which is being built for the Subaru 8.2 m telescope of the National Astronomical Observatory of Japan. CHARIS will be implemented behind the new extreme adaptive optics system at Subaru, SCExAO, and the existing 188-actuator system AO188. CHARIS will offer three observing modes over near-infrared wavelengths from 0.9 to 2.4 μm (the y-, J-, H-, and K-bands), including a low-spectral-resolution mode covering this entire wavelength range and a high-resolution mode within a single band. With these capabilities, CHARIS will offer exceptional sensitivity for discovering giant exoplanets, and will enable detailed characterization of their atmospheres. CHARIS, the only planned high-contrast integral field spectrograph on an 8m-class telescope in the Northern Hemisphere, will complement the similar instruments such as Project 1640 at Palomar, and GPI and SPHERE in Chile.

Paper Details

Date Published: 24 September 2012
PDF: 10 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84469C (24 September 2012); doi: 10.1117/12.927108
Show Author Affiliations
Michael W. McElwain, NASA Goddard Space Flight Ctr. (United States)
Timothy D. Brandt, Princeton Univ. (United States)
Markus Janson, Princeton Univ. (United States)
Gillian R Knapp, Princeton Univ. (United States)
Mary Anne Peters, Princeton Univ. (United States)
Adam S. Burrows, Princeton Univ. (United States)
Alexis Carlotti, Princeton Univ. (United States)
Michael A. Carr, Princeton Univ. (United States)
Tyler Groff, Princeton Univ. (United States)
James E. Gunn, Princeton Univ. (United States)
Olivier Guyon, Subaru Telescope, National Astronomical Observatory of Japan (United States)
Masahiko Hayashi, National Astronomical Observatory of Japan (Japan)
N. Jeremy Kasdin, Princeton Univ. (United States)
Masayuki Kuzuhara, The Univ. of Tokyo (Japan)
Robert H. Lupton, Princeton Univ. (United States)
Frantz Martinache, Subaru Telescope, National Astronomical Observatory of Japan (United States)
David Spiegel, Institute for Advanced Study (United States)
Naruhisa Takato, Subaru Telescope, National Astronomical Observatory of Japan (United States)
Motohide Tamura, National Astronomical Observatory of Japan (Japan)
Edwin L. Turner, Princeton Univ. (United States)
Robert J. Vanderbei, Princeton Univ. (United States)

Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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