COSMOS-21Subaru S05B-S06AIntensive ProgramTaniguchi et al.

COSMIC EVOLUTION SURVEYCOSMOS

2-sq. degree survey

COSMOS StatusPrevious S-cam RunsCOSMOS-21

Key Issues & Key WordsKey Issues & Key Words

Extragalactic Astronomy

Observational Cosmology

Evolution of Galaxies, AGNs, & DMas a function of

Large Scale Structure Evolution

Multi-λ StrategyMulti-λ Strategyw/ Great Observatoriesw/ Great Observatories

Current Status of the Current Status of the COSMOSCOSMOS• HST (I814): doneHST (I814): done• Subaru: COSMOS-7Subaru: COSMOS-7• VLT z-COSMOS: ~5,000 objectVLT z-COSMOS: ~5,000 object• XMM, VLA, GALEX: doneXMM, VLA, GALEX: done• SST s-COSMOS: going on (GO2)SST s-COSMOS: going on (GO2)• HST (g’), CXO: not yetHST (g’), CXO: not yet• 11stst Year Photo-z Catalog released ! Year Photo-z Catalog released !• ApJ Special Issue (submit by Sep)ApJ Special Issue (submit by Sep)

Science Steering CommiteeScience Steering Commitee• Nick Scoville,Nick Scoville,• 　　 Alvio Renzini,Alvio Renzini,• Dave Sanders ,Dave Sanders ,• 　　 Mauro Giavalisco,Mauro Giavalisco,• 　　 Olivier LeFevre,Olivier LeFevre,• Yoshi Taniguchi,Yoshi Taniguchi,• Chris Impey,Chris Impey,• Martin Elvis,Martin Elvis,• Simon Lilly,Simon Lilly,• Mike Rich,Mike Rich,• Eva SchinnerrerEva Schinnerrer

COSMOS Working GroupsCOSMOS Working Groups

•Data ProductsData Products 　　•Large Scale StructureLarge Scale Structure•Star FormationStar Formation•AGN AGN •MorphologyMorphology•LensingLensing•High-zHigh-z

11stst Year Photo-z Catalog Year Photo-z Catalog[1] S-cam r ’-selected catalog (r[1] S-cam r ’-selected catalog (r　’　’ <26)<26) 664,615664,615 galaxies galaxies[2] S-cam i ’ -selected catalog (i[2] S-cam i ’ -selected catalog (i　’　’ <26)<26) 796,494 796,494 galaxiesgalaxies

[a] star formation vs. [a] star formation vs. zz[b] large-scale structures vs. [b] large-scale structures vs. zz[c] morphology vs. [c] morphology vs. zz[d] AGNs vs. [d] AGNs vs. zz[e] x-ray, radio sources IDs[e] x-ray, radio sources IDs

Suprime-Cam ObservationsSuprime-Cam Observationsin S03B, S04A, & S04Bin S03B, S04A, & S04B 　　

S03B-239(IP): broad band (Taniguchi+)S03B-239(IP): broad band (Taniguchi+)S04A-080 : NB816 (Taniguchi+)S04A-080 : NB816 (Taniguchi+)S04B-142(IP): COSMOS-21 (Taniguchi+)S04B-142(IP): COSMOS-21 (Taniguchi+)

g’ g’ (lim) = 27.0(lim) = 27.0 B B (lim) = 27.5(lim) = 27.5 V V (lim) = 27.0(lim) = 27.0 rr’ (lim) = 27.0’ (lim) = 27.0 i’i’ (lim) = 27.0 (lim) = 27.0 zz’ (lim) = 25.6’ (lim) = 25.6 NB816 NB816 (lim) = 24.7(lim) = 24.7 (AB, S/N=5)(AB, S/N=5)

S04B-142: 30% achievement

THE ASTROPHYSICAL THE ASTROPHYSICAL JOURNALJOURNAL

COSMOS Special IssueCOSMOS Special Issue

~ 50 papers !!!~ 50 papers !!!

Taniguchi Taniguchi et al. : S-cam Observationset al. : S-cam ObservationsAjiki Ajiki et al. : LAEs @ z = 5.7et al. : LAEs @ z = 5.7Takahashi Takahashi et al. : [OII] Emitters @ z = 1.2et al. : [OII] Emitters @ z = 1.2Shioya Shioya et al. : Hα Emitters @ z = 0.24et al. : Hα Emitters @ z = 0.24Sasaki Sasaki et al. : Galaxy Threshing Systemet al. : Galaxy Threshing System

BroadBroad band filters - band filters - 55 ( (BVr ’i ’z BVr ’i ’z ’): ’): done !done !IntermediateIntermediate band filters – band filters – 14 14 ((IA427-797IA427-797))NarrowNarrow band filters – band filters – 22 ( (NB816NB816, , 921921) ) NB816: doneNB816: done　　 2121 filters ! filters !

[1] [1] accurate photo-accurate photo-zz : δ : δzz/(1+/(1+zz) < 0.02) < 0.02　　　 （　　　 （ w/ GALEXw/ GALEX 、、 CFHT u*CFHT u* 、、 NOAO K’NOAO K’ 、、 SST-SST-

MIR) MIR) [2] [2] large-scale emitters surveyslarge-scale emitters surveys between between z z ~ 0 and ~ 0 and z z ~ 6.6~ 6.6

COSMOS-21COSMOS-21 　　

COSMOS-21COSMOS-21 　　 FILTER FILTER SYSTEMSYSTEM

B z’

NB921NB81614 IB filters

COSMOS-21COSMOS-21 　　Much Accurate Photo-zMuch Accurate Photo-z

GALEX, CFHT u* Good for low-z

NOAO/CFHT (K)UH88 (J)

NICMOS (H ) UKIRT-WFCAM

SST-IRAC Good for z～ 2

U

K + MIR

Probe LSS Evolution Probe LSS Evolution Accurately !Accurately !

z~0.7 LSSs in COSMOS

ΛCDM (Frenck et al.) Current Observations

RA

COSMOS-21 is

the Millennium Observation

LyαLyα 　　 　　 z = 2.5 – 6.6z = 2.5 – 6.6 [OII] z = 0.15 – 1.4[OII] z = 0.15 – 1.4 Hα z = 0 – 0.41Hα z = 0 – 0.41

・・ Systematic Search for Systematic Search for ～～ 400,000 400,000 Emission-Line ObjectsEmission-Line Objects 　　

　　　　　　　　　　　・　・ Accurate photo-z for Accurate photo-z for ～～ 1,000,000 Objects1,000,000 Objects

Large-scale search for Large-scale search for emittersemitters

Accurate Photo-z & Emitter Survey Complementary !!!

Broad & Intermediate+NarrowBroad & Intermediate+Narrow

(1) (1) LBGLBG vs. vs. LAELAE

(2) [Starburst vs. (2) [Starburst vs. AGNAGN] vs. Normal] vs. Normal Needs AGN SED templatesNeeds AGN SED templates

(3) (3) z-COSMOS z-COSMOS vs. vs. COSMOS-21COSMOS-21 10 10 55 (sp-z) vs. 10 (sp-z) vs. 10 6 6 (photo-z)(photo-z) Template tuningTemplate tuning Feed back to Photo-z businessFeed back to Photo-z business

MAHOROBA-11MAHOROBA-11(Yamada F. S. et al. 2005)(Yamada F. S. et al. 2005)

z (phot) = 0.05 z (phot) = 4.13

R=23 Spectroscopy !

MAHOROBA-11MAHOROBA-11Quasar SurveyQuasar Survey

(Sasaki et al. 2006)(Sasaki et al. 2006)

CIV

Quasar @ z=3.62

MAHOROBA-11MAHOROBA-11LAE to LBG RatioLAE to LBG Ratio @ z ~ 3 – 7 @ z ~ 3 – 7

(Sumiya et al. 2006)(Sumiya et al. 2006)

SDF

SDF

SummarySummary11stst Comparative Study of LSS Evolution between Obser Comparative Study of LSS Evolution between Obser

vations and Theory w/ accurate photo-vations and Theory w/ accurate photo-z z mappingmapping

11stst Systematic Study of Evolution between LGB & LAE Systematic Study of Evolution between LGB & LAE (or Normal vs. Emitters)(or Normal vs. Emitters)

The Biggest Survey for Faint AGNsThe Biggest Survey for Faint AGNs (>>COMBO-17)(>>COMBO-17) 　　 Starburst – AGN ConnectionStarburst – AGN Connection