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Proceedings Paper

TIKI: a 10-micron Earth-like planet finder for the Gemini South telescope
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Paper Abstract

The TIKI instrument is a next generation 10-micron cryogenic extreme adaptive optics (ExAO) imager being designed for the Gemini South telescope. Its goal is to detect the thermal emission of Earth-like planets in orbit around Alpha Centauri A or B. TIKI is also a prototype for future TMT instruments capable of imaging Earth- like planets around a larger star sample, and performing low spectral resolution characterization to search for biomarkers on detected planets. The science module will operate at cryogenic temperature in order to minimize thermal background, dominant in the 10-micron wavelength range. The instrument will use Adaptive Optics, a vortex coronagraph, focal plane wavefront sensing, and advanced post-processing techniques to reach a 1E-7 contrast in less than 200 hours of observing time. It aims to be background-limited in the 2-5λ/D zone, which corresponds to the habitable zone around the two Sun-like stars of the Alpha Centauri system. In this paper, we give an overview of the project goals, present TIKI's conceptual optical design, and summarize preliminary simulation results.

Paper Details

Date Published: 10 August 2018
PDF: 11 pages
Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107024A (10 August 2018); doi: 10.1117/12.2314214
Show Author Affiliations
Célia Blain, Univ. of Victoria (Canada)
Christian Marois, Univ. of Victoria (Canada)
NRC - Herzberg Astronomy & Astrophysics (Canada)
Colin Bradley, Univ. of Victoria (Canada)
Mark Chun, Institute for Astronomy, Univ. of Hawai'i (United States)
René Doyon, Univ. of Montréal (Canada)
Darren Erickson, NRC - Herzberg Astronomy & Astrophysics (Canada)
Thomas Hayward, Gemini Observatory (Chile)
Masen Lamb, Dunlap Institute for Astronomy & Astrophysics (Canada)
Olivier Lardière, NRC - Herzberg Astronomy & Astrophysics (Canada)
Franck Marchis, SETI Institute (United States)
Carl Melis, Univ. of California, San Diego (United States)
Michael Meyer, Univ. of Michigan (United States)
Chris Packham, The Univ. of Texas at San Antonio (United States)
National Astronomical Observatory of Japan (Japan)
Andrew Skemer, Univ. of California, Santa Cruz (United States)
Simon Thibault, Univ. Laval (Canada)

Published in SPIE Proceedings Vol. 10702:
Ground-based and Airborne Instrumentation for Astronomy VII
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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