CaltechAUTHORS
  A Caltech Library Service

Performance and early science with the Subaru Coronagraphic Extreme Adaptive Optics project

Currie, Thayne and Guyon, Olivier and Lozi, Julien and Groff, Tyler and Kasdin, N. Jeremy and Martinache, Frantz and Brandt, Timothy D. and Chilcote, Jeffrey and Maroish, Christian and Gerardi, Benjamin and Jovanovic, Nemanja and Vievard, Sébastien (2019) Performance and early science with the Subaru Coronagraphic Extreme Adaptive Optics project. In: Techniques and Instrumentation for Detection of Exoplanets IX. Proceedings of SPIE. No.11117. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 111170X. ISBN 9781510629271. https://resolver.caltech.edu/CaltechAUTHORS:20190913-073201467

[img] PDF - Published Version
See Usage Policy.

3410Kb
[img] PDF - Accepted Version
See Usage Policy.

3368Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20190913-073201467

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.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2529689DOIArticle
https://arxiv.org/abs/1909.10522arXivDiscussion Paper
ORCID:
AuthorORCID
Currie, Thayne0000-0002-7405-3119
Guyon, Olivier0000-0002-1097-9908
Lozi, Julien0000-0002-3047-1845
Groff, Tyler0000-0001-5978-3247
Martinache, Frantz0000-0003-1180-4138
Brandt, Timothy D.0000-0003-2630-8073
Chilcote, Jeffrey0000-0001-6305-7272
Additional Information:© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE). 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.
Funders:
Funding AgencyGrant Number
NASA Postdoctoral FellowshipUNSPECIFIED
NASALK-2663-948181
Subject Keywords:adaptive optics, extrasolar planets, infrared
Series Name:Proceedings of SPIE
Issue or Number:11117
Record Number:CaltechAUTHORS:20190913-073201467
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190913-073201467
Official Citation:Thayne Currie, Olivier Guyon, Julien Lozi, Tyler Groff, N. Jeremy Kasdin, Frantz Martinache, Timothy D. Brandt, Jeffrey Chilcote, Christian Marois, Benjamin Gerard, Nemanja Jovanovic, and Sébastien Vievard "Performance and early science with the Subaru Coronagraphic Extreme Adaptive Optics project", Proc. SPIE 11117, Techniques and Instrumentation for Detection of Exoplanets IX, 111170X (9 September 2019); https://doi.org/10.1117/12.2529689
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98626
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:13 Sep 2019 14:48
Last Modified:19 Nov 2019 18:51

Repository Staff Only: item control page