Performance and early science with the subaru coronagraphic extreme adaptive optics project

Thayne Currie; Olivier Guyon; Julien Lozi; Tyler Groff; N. Jeremy Kasdin; Frantz Martinache; Timothy D. Brandt; Jeffrey Chilcote; Christian Marois; Benjamin Gerard; Nemanja Jovanovic; Sébastien Vievard

doi:10.1117/12.2529689

Performance and early science with the subaru coronagraphic extreme adaptive optics project

Thayne Currie, Olivier Guyon, Julien Lozi, Tyler Groff, N. Jeremy Kasdin, Frantz Martinache, Timothy D. Brandt, Jeffrey Chilcote, Christian Marois, Benjamin Gerard, Nemanja Jovanovic, Sébastien Vievard

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

10 Scopus citations

Abstract

We describe the current performance of the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument on the Subaru telescope on Maunakea, Hawaii and present early science results for SCExAO coupled with the CHARIS integral field spectrograph. SCExAO now delivers H band Strehl ratios up to ∼0.92, extreme AO corrections for optically faint stars, and planet-To-star contrasts rivaling that of GPI and SPHERE. CHARIS yield high signal-To-noise detections and 1.1-2.4 micron spectra of benchmark directly-imaged companions like HR 8799 cde and kappa And b that clarify their atmospheric properties. We show how spectra and astrometry for kappa And b lead to a reevaluation of this object's nature. Finally, we briefly describe plans for a SCExAO-focused direct imaging campaign to directly image and characterize young exoplanets, planet-forming disks, and (later) mature planets in reflected light.

Original language	English (US)
Title of host publication	Techniques and Instrumentation for Detection of Exoplanets IX
Editors	Stuart B. Shaklan
Publisher	SPIE
ISBN (Electronic)	9781510629271
DOIs	https://doi.org/10.1117/12.2529689
State	Published - 2019
Externally published	Yes
Event	Techniques and Instrumentation for Detection of Exoplanets IX 2019 - San Diego, United States Duration: Aug 12 2019 → Aug 15 2019

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11117
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Techniques and Instrumentation for Detection of Exoplanets IX 2019
Country/Territory	United States
City	San Diego
Period	8/12/19 → 8/15/19

Keywords

Adaptive optics
Extrasolar planets
Infrared

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2529689

Cite this

Currie, T., Guyon, O., Lozi, J., Groff, T., Kasdin, N. J., Martinache, F., Brandt, T. D., Chilcote, J., Marois, C., Gerard, B., Jovanovic, N., & Vievard, S. (2019). Performance and early science with the subaru coronagraphic extreme adaptive optics project. In S. B. Shaklan (Ed.), Techniques and Instrumentation for Detection of Exoplanets IX Article 111170X (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11117). SPIE. https://doi.org/10.1117/12.2529689

Performance and early science with the subaru coronagraphic extreme adaptive optics project. / Currie, Thayne; Guyon, Olivier; Lozi, Julien et al.
Techniques and Instrumentation for Detection of Exoplanets IX. ed. / Stuart B. Shaklan. SPIE, 2019. 111170X (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11117).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Currie, T, Guyon, O, Lozi, J, Groff, T, Kasdin, NJ, Martinache, F, Brandt, TD, Chilcote, J, Marois, C, Gerard, B, Jovanovic, N & Vievard, S 2019, Performance and early science with the subaru coronagraphic extreme adaptive optics project. in SB Shaklan (ed.), Techniques and Instrumentation for Detection of Exoplanets IX., 111170X, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11117, SPIE, Techniques and Instrumentation for Detection of Exoplanets IX 2019, San Diego, United States, 8/12/19. https://doi.org/10.1117/12.2529689

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title = "Performance and early science with the subaru coronagraphic extreme adaptive optics project",

abstract = "We describe the current performance of the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument on the Subaru telescope on Maunakea, Hawaii and present early science results for SCExAO coupled with the CHARIS integral field spectrograph. SCExAO now delivers H band Strehl ratios up to ∼0.92, extreme AO corrections for optically faint stars, and planet-To-star contrasts rivaling that of GPI and SPHERE. CHARIS yield high signal-To-noise detections and 1.1-2.4 micron spectra of benchmark directly-imaged companions like HR 8799 cde and kappa And b that clarify their atmospheric properties. We show how spectra and astrometry for kappa And b lead to a reevaluation of this object's nature. Finally, we briefly describe plans for a SCExAO-focused direct imaging campaign to directly image and characterize young exoplanets, planet-forming disks, and (later) mature planets in reflected light.",

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author = "Thayne Currie and Olivier Guyon and Julien Lozi and Tyler Groff and Kasdin, {N. Jeremy} and Frantz Martinache and Brandt, {Timothy D.} and Jeffrey Chilcote and Christian Marois and Benjamin Gerard and Nemanja Jovanovic and S{\'e}bastien Vievard",

note = "Funding Information: T.C. is supported by a NASA Senior Postdoctoral Fellowship and NASA/Keck grant LK-2663-948181. We emphasize the pivotal cultural role and reverence that the summit of Maunakea has always had within the Hawaiian community. We are most fortunate to conduct scientific observations from this mountain. Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; Techniques and Instrumentation for Detection of Exoplanets IX 2019 ; Conference date: 12-08-2019 Through 15-08-2019",

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T1 - Performance and early science with the subaru coronagraphic extreme adaptive optics project

AU - Currie, Thayne

AU - Guyon, Olivier

AU - Lozi, Julien

AU - Groff, Tyler

AU - Kasdin, N. Jeremy

AU - Martinache, Frantz

AU - Brandt, Timothy D.

AU - Chilcote, Jeffrey

AU - Marois, Christian

AU - Gerard, Benjamin

AU - Jovanovic, Nemanja

AU - Vievard, Sébastien

N1 - Funding Information: T.C. is supported by a NASA Senior Postdoctoral Fellowship and NASA/Keck grant LK-2663-948181. We emphasize the pivotal cultural role and reverence that the summit of Maunakea has always had within the Hawaiian community. We are most fortunate to conduct scientific observations from this mountain. Publisher Copyright: © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

PY - 2019

Y1 - 2019

N2 - We describe the current performance of the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument on the Subaru telescope on Maunakea, Hawaii and present early science results for SCExAO coupled with the CHARIS integral field spectrograph. SCExAO now delivers H band Strehl ratios up to ∼0.92, extreme AO corrections for optically faint stars, and planet-To-star contrasts rivaling that of GPI and SPHERE. CHARIS yield high signal-To-noise detections and 1.1-2.4 micron spectra of benchmark directly-imaged companions like HR 8799 cde and kappa And b that clarify their atmospheric properties. We show how spectra and astrometry for kappa And b lead to a reevaluation of this object's nature. Finally, we briefly describe plans for a SCExAO-focused direct imaging campaign to directly image and characterize young exoplanets, planet-forming disks, and (later) mature planets in reflected light.

AB - We describe the current performance of the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument on the Subaru telescope on Maunakea, Hawaii and present early science results for SCExAO coupled with the CHARIS integral field spectrograph. SCExAO now delivers H band Strehl ratios up to ∼0.92, extreme AO corrections for optically faint stars, and planet-To-star contrasts rivaling that of GPI and SPHERE. CHARIS yield high signal-To-noise detections and 1.1-2.4 micron spectra of benchmark directly-imaged companions like HR 8799 cde and kappa And b that clarify their atmospheric properties. We show how spectra and astrometry for kappa And b lead to a reevaluation of this object's nature. Finally, we briefly describe plans for a SCExAO-focused direct imaging campaign to directly image and characterize young exoplanets, planet-forming disks, and (later) mature planets in reflected light.

KW - Adaptive optics

KW - Extrasolar planets

KW - Infrared

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PB - SPIE

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ER -

Performance and early science with the subaru coronagraphic extreme adaptive optics project

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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