HiCIAO and exoplanet/disk

searches on Subaru Motohide Tamura

NAOJ, Extrasolar Planet Project Officein collaboration with University of Hawaii, Hilo

2007.6.7 @ Berkeley

Collaborators

K. Hodapp2, R. Suzuki3, H. Takami3, L. Abe1, O. Guyon3, H. Suto1, S. Jacobson2, R. Kandori1, J. Morino1, N. Murakami1, V. Stahlberger2 , A. Tavrov1, H. Yamada2, J. Nishikawa1, N. Ukita1, J. Hashimoto1, T. Nishimura3

(1) NAOJ, (2) UH, (3) NAOJ/Subaru, (4) NAOJ/Okayama

Figure Credit

M. Fukagawa5, T. Kudo6, Y. Itoh7, Z. Jiang8 ,T. Hioki7(see Poster), R. Neuhäuser9

(5) Nagoya U., (6) GUAS, (7) Kobe U., (8) PMO, (9) U. Jena

CollaboratorsCollaborators

K. Hodapp2, R. Suzuki3, H. Takami3, L. Abe1, O. Guyon3, H. Suto1, S. Jacobson2, R. Kandori1, J. Morino1, N. Murakami1, V. Stahlberger2 , A. Tavrov1, H. Yamada2, J. Nishikawa1, N. Ukita1, J. Hashimoto1, T. Nishimura3

(1) NAOJ, (2) UH, (3) NAOJ/Subaru, (4) NAOJ/Okayama

Figure Credit

M. Fukagawa5, T. Kudo6, Y. Itoh7, Z. Jiang8 ,T. Hioki7(see Poster), R. Neuhäuser9

(5) Nagoya U., (6) GUAS, (7) Kobe U., (8) PMO, (9) U. Jena

Diversity of proto-Planetary disks

Compact disk aroundmassive YSOs

Subaru has an AO Coronagraph since 2001

36-act. AO + CIAO at CSFirst dedicated cold coronagraph on 8-m telescopes

Young very low-massCompanion

NEW type of disk: HD142527 – banana split

λ=1.65 micronSubaru/CIAO

λ=24.5 micronSubaru/COMICS

1550 AUHerbig Ae star in Lupus (d=200pc)

NasmythNasmyth platformplatform

Tele

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Com

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Com

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Opt

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Opt

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AOAO

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Cor

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C

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IR C

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Cam

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High

Con

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Hi

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Opt

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WarmWarm CoColdld

CoronagraphCoronagraphFocal masksFocal masksPupil stopsPupil stops

DifferentialDifferential opticsoptics(Wollaston prisms)(Wollaston prisms)

Hawaii 2Hawaii 2--RGRG22k k ×× 22kk arrayarrayASICS ASICS Sidecar Sidecar ControllerController

FiltersFiltersCommon+DifferentialCommon+Differential

188188 actuatorsactuatorsAOAOnear funear futureture::ComplementaryComplementaryMEM DM (32MEM DM (32××3232))

Subaru is developing a new coronagraph - HiCIAO

Camera

Wollaston Prism

2048x2048 HgCdTe (HAWAII-2RG)Detector

Sidecar (warm)ASIC Readout

0.6 (J), 0.7 (H), 0.8 (K)Strehl Ratio

Occulting mask, Classical Lyot stopCoronagraph

IR Nasmyth (with AO188)Focus

Direct Imaging (DI)Polarimetric Differential Imaging (PDI)Spectral Differential Imaging (SDI)

Observation modes

20”x20” (DI), 20”x10” (PDI), 5.8”x5.8” (SDI)Field of View

J, H, K (BB); CH4 set, [FeII] set (SDI)Filters (as of first light)

0.010 ”/pixPixel scale

0.85 - 2.5 umWavelength

Specifications HiCIAO

Collimator Filter & DetectorCamera

Wollaston Prism

Lyot Stop Common Path Filter

Differential Path Filter

Detector

HiCIAO Optics supports differential imagingdirect imaging, polarization differential imaging, & spectral differential imaging

WPs made from YLF

AO188 Optical Bench

@ Nasmyth Floor

HiCIAO Foreoptics

HiCIAO Camera

Electronics Racks

AO Interface Plate

Support Frame

~1800

~1500~1400

Resolution (FWHM): From ~0.1" w/AO36 to 0.03"～0.05" !Contrast: >One order better （>13 mag @ 1"）

Expected performances of HiCIAO/AO188

CIAO

CIAO

24.28[FeII]

23.47CH4 high

23.27CH4 low

23.84Ks

24.16H

24.28J

5σ (1 hour)Band

57.22.200

41.81.600

31.81.200

27.11.020

FWHM (mas)

Wavelength (µm)

sensitivity

resolution

HiCIAOin the final assembling

(in Hilo)

Most recentimage by Suzuki

“Woofer” AO

1st stagewavefrontcorrection

“Tweeter” AO

2nd stage finewavefrontcorrection

Coronagraphblocks starlight

keeps planet light

Near-IR camerascience imageSDI

fast readout

AO188 MEMs DM PIAAC HiCIAO

slow Focal Plane AO

fast Focal Plane AO1st stage2nd stage3rd stage

put AO188picture here

put HiCIAOpicturehere

removes static speckles

true “extreme-AO”

Path to High-ContrastExtreme-AO System

Schedule and SummaryDevelopment: quick (FY2004-2007)

2004 Concept design fixed2005 Sept PDR2006 Feb CDRAt present final assembling2007 June Lab. test2007 Sep First Light

(near) Future upgrades – flexible instrument!2nd-stage MEMS-DM for Extreme AO (~1000 elements equivalent), already lab. demonstrated (Guyon).

Extensive Surveys for exoplanets and disksStrategic observations in 2008-2012 (100 nights) are proposed very soon.

~500 stars in total will be surveyed.~300 stars for planets and ~200 stars for disks.