subaru telescope

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Subaru Instruments, Science, & Future Masanori Iye (National Astron. Obs.) 1990(Site for Subaru),1995(GTC review),1997(Obs WHT), 2009

1 ） Subaru Intrument Suite - Parameter space coverage, - Operational Aids　 2 ） Science Achievements - Probing the cosmic dawn – - Study on GRB – Hypernovae connection　 3 ） LGSAO and Wide field instruments - Subaru’s future in the ELT era

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Subaru Telescope History ・ Design Study : 1984-1990 ・ Construction : 1991-1999 ・ Engineering FL : Jan.1999 ・ Open operation : Dec.2000-Cost ･ ~300MEuro for construction,

~20MEuro/yrScience (last five years) ・ proposal award rate 1/3 => 80

refereed papers/yr

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Subaru Telescope image size statistics 　　　　　　　　　

FWHM size distribution

すばる　　　　　　　　　岡山

Best image w/o AO

▼

　 0.“65 Median

Okayama 2.“2

Kiso 2.”7

1 arcsec = 5 μradλ ／ D=0.06 arcsec (@λ=2μ) =0.015arcsec(@λ=0.5μ)

Miyashita et al.

Best image ～ 0”2 （ K 、R ） Median seeing ～ 0”6 (R) 　

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Instrument Phase Space (2009)

Wavelength

Wav

elen

gth

res

olu

tio

n

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Operational Aids8 instruments at 4 foci, 5(7) top units : 4 M2s, Suprime-Cam, (LGSLT, FMOS)

Semi-robotic Exchangers

Suprime-Cam, (FMOS)

AO188, IRCS, (HiCIAO)

FOCAS, MIRCS, CIAO, COMICS

HDS

M2 (Opt-Cs, Opt-Ns, IR-Ns, IR tip-tilt)

Many massive components

to exchange!

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Cassegrain Instrment Exchanger

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Top Unit Exchanger System

show Exchange_topunit_256.wmv

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

2. Science Achievements

1) High redshift galaxies Narrow-band imaging to survey for Lyman Alpha Emitters

2) Hypernova – GRB connection Spectrophotometry of core-collapse SNe

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

４ m telescopes

redshift８ m telescope

CCD

World record of the most distant galaxies

IOK-1 （ Iye et al. Nature 2006)

R

edsh

ift

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

The most distant galaxy 12.8 Gyr ago (z=6.964).Iye et al. 2006, Nature, 443, 186

1 / 41,533

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

　　　　 Guinness record (for 1052 days ）＊ New record will arrive at 95% confidence level at earliest in 27 days and at latest in 112 years.

@July 25, 2009

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Cosmic Dawn

LAEs are decreasing in number from z=5.7, z=6.6, to z=7.0 　＝＞　 Due to intergalactic absorption fo Lyman α photons by neutral hydrogen.

End of re-inoization

Beginning of reionization

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Connection of GRB and Hypernovae

SN 2002apNo GRBHypernovaPolarized SED

shows high velocity

Asymmetric Explosion

jet

GRB

Jet

SN 2003dh/GRB 030329

SN 2002ap

Polarized Scattered Light

SN 2003dh/GRB 030329 Jet along the l-o-s.Hypernova epoch

back-dating coincided with GRB event

No polarization

Jet visible only from its direction

Kawabata, Mazzali,….

Polarimetric Spectroscopy

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Adaptive Optics and Subaru’s

future

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

188 element AO: first NGSAO image

θ1 Ori C

With 188 NGSAO (2006)

Orion Trapezium IR image

Without AO (1999)

6M$ LGSAO improved the image quality of 400M$ telescope by 10 times.

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Subaru LGSAO system

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Sum-frequency laser

13.5W(1064)+5.0W(1319)=>PPMgO:SLT=> 6.4W(NaD2)

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

LGSAO 2nd light movie

LGSAO-video : replay from 08:20

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Wide Field Instruments

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Hyper Suprime Cam (HSC) : 1.5d FOV

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

FMOS : 400 fibers in NIR

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

WFMOS: 4000 fibers, optical

ASPEN intiativeWide field multi 103.5 fiber spectrograph for cosmology and Galactic archeology. (BAO, Dark energy,..)

Gemini borad cancellation of WFMOS funding

NAOJ fund raising effort for HFMOS …

“Subaru instruments, science, & future”, M. Iye (NAOJ), 25.07.2009 @ La Palma

Subaru Synergy with TMT・ TMT chose MK.・ Subaru is

prepared to strengthen its wide field survey capability with HSC (+HFMOS?) for the ELT era.・ Time sharing

among 8m class telescopes to be arranged.