MIRAO: a mid-IR adaptive optics system design for TMT

Chun, Mark; Elias, J. H.; Ellerbroek, Brent L.; Bond, Tim; Liang, Ming; Clare, Richard; Tokunaga, A. T.; Richter, M. J.; Daggert, Larry

doi:10.1117/12.670062

Cited by 6 publications

(5 citation statements)

References 3 publications

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“…For this comparison we use the TMT/MIRAO concept. 2 The TMT/MIRAO concept is quite similar to the design shown above. It is intended for use with a science camera where telescope emissivity can dominate the background (and thus the noise) of an observation.…”

Section: A Comparison Of Capabilitiesmentioning

confidence: 99%

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The Planetary Systems Imager Adaptive Optics System: An Initial Optical Design and Performance Analysis Tools for the PSI-Red AO System

Jensen-Clem,

Hinz,

van Kooten

et al. 2021

Preprint

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The Planetary Systems Imager (PSI) is a proposed instrument for the Thirty Meter Telescope (TMT) that provides an extreme adaptive optics (AO) correction to a multi-wavelength instrument suite optimized for high contrast science. PSI's broad range of capabilities, spanning imaging, polarimetry, integral field spectroscopy, and high resolution spectroscopy from 0.6-5 µm, with a potential channel at 10 µm, will enable breakthrough science in the areas of exoplanet formation and evolution. Here, we present a preliminary optical design and performance analysis toolset for the 2-5 µm component of the PSI AO system, which must deliver the wavefront quality necessary to support infrared high contrast science cases. PSI-AO is a two-stage system, with an initial deformable mirror and infrared wavefront sensor providing a common wavefront correction to all PSI science instruments followed by a dichroic that separates "PSI-Red" (2-5 µm) from "PSI-Blue" (0.5-1.8 µm). To meet the demands of visible-wavelength high contrast science, the PSI-Blue arm will include a second deformable mirror and a visible-wavelength wavefront sensor. In addition to an initial optical design of the PSI-Red AO system, we present a preliminary set of tools for an end-to-end AO simulation that in future work will be used to demonstrate the planet-to-star contrast ratios achievable with PSI-Red.

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Section: A Comparison Of Capabilitiesmentioning

confidence: 99%

“…This is being compared with a similar design that uses both NGS and a Laser Guide Star (LGS) mode for the TMT/MIRAO concept. 2 The NGS system currently has the following requirements:…”

Section: Optical Design Of Psi-redmentioning

confidence: 99%

The Planetary Systems Imager Adaptive Optics System: An Initial Optical Design and Performance Analysis Tools for the PSI-Red AO System

Jensen-Clem,

Hinz,

van Kooten

et al. 2021

Preprint

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“…However, given its contrast in the mid-infrared (10 −6 at 10 μm) this planet may be a candidate in the future for imaging with a mid-infrared adaptive optics system on a 30 m class telescope (Chun et al 2006).…”

Section: Direct-imaging Prospectsmentioning

confidence: 99%

Two Planets Straddling the Habitable Zone of the Nearby K Dwarf Gl 414A

Dedrick

Fulton

Knutson

et al. 2021

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We present the discovery of two planets orbiting the nearby (D=11.9 pc) K7 dwarf Gl 414A. Gl 414A b is a sub-Neptune mass planet with = -+ M i sin 7.60 b b 2.19 2.44 M ⊕ and a semimajor axis of 0.23±0.01 au. Gl 414A c is a sub-Saturn mass planet with = -+ M i sin 53.83 c c 8.58 9.18 M ⊕ and a semimajor axis of 1.43±0.06 au. We jointly analyzed radial velocity data from Keck/HIRES and the Automated Planet Finder at Lick Observatory, as well as photometric data from KELT, to detect the two planets and two additional signals related to the rotationally modulated activity and the long-term magnetic activity cycle of the star. The outer planet in this system may be a potential candidate for future direct-imaging missions.

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“…Each pupil mirror is individually tilted in order to line up the slit images from the different slicing mirrors onto the pseudo-slit mirror. The light from the pseudo-slit mirrors are reflected off two folding flats to send it to the spectrograph optics [4].…”

Section: Polarimetric Capabilitymentioning

confidence: 99%

“…Numerical characters beside the box represent slicer number. No [1][2][3][4][5][6][7][8][9][10][11]. are from unit A and B, respectively.…”

mentioning

confidence: 99%

Design concepts for a mid-infrared instrument for the Thirty-Meter Telescope

et al. 2010

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A mid-infrared imager and spectrometer is under consideration for construction in the first decade of the ThirtyMeter Telescope (TMT) operation (see the companion paper by Okamoto). MIRES, a mid-infrared high-spectral resolution optimized instrument, was previously proposed to provide these capabilities to the TMT community. We have revised the design in order to provide an improved optical design for the high-spectral resolution mode with R=120,000, improved imaging with sky chopping, low-spectral resolution mode with an integral field spectrograph, and polarimetry. In this paper we describe the optical design concepts currently under consideration.

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MIRAO: a mid-IR adaptive optics system design for TMT

Cited by 6 publications

References 3 publications

The Planetary Systems Imager Adaptive Optics System: An Initial Optical Design and Performance Analysis Tools for the PSI-Red AO System

The Planetary Systems Imager Adaptive Optics System: An Initial Optical Design and Performance Analysis Tools for the PSI-Red AO System

Two Planets Straddling the Habitable Zone of the Nearby K Dwarf Gl 414A

Design concepts for a mid-infrared instrument for the Thirty-Meter Telescope

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