Galaxies Evolution and Environment: The Promises of Cosmos Hervé Aussel AIM, Saclay Moriond

The Cosmos Collaboration Roberto Abraham Masaru Ajiki Justin Alpert Hervé Aussel Josh Barnes Andrew Blain Daniela Calzetti Peter Capak John Carlstrom Chris Carilli Andrea Cimatti Andrea Comastri Marcella Corollo Emannuel Daddi Richard Ellis Martin Elvis Amr El Zant Shawn Ewald Mike Fall Alexis Finoguenov Alberto Franceschini Mauro Giavalisco Richard Griffiths Gigi Guzzo Gunther Hasinger Chris Impey Jean-Paul Kneib Karel Nel Jin Koda Anton Koekemoer Alexie Leauthaud Olivier LeFevre Ingo Lehmann Simon Lilly Charles Liu Richard Massey Henry McCracken Yannick Mellier Satoshi Miyazaki Bahram Mobasher Takashi Murayama Colin Norman Alexandre Refregier Alvio Renzini Jason Rhodes Mike Rich Dave Sanders Shunji Sasaki Dave Schminovich Eva Schinnerer Nick Scoville Marco Scodeggio Kartik Sheth Patrick Shopbell James Taylor Dave Thompson Neil Tyson Meg Urry Yoshi Taniguchi Ludovic Van Waerbeke Paolo Vettolani Simon White Lin Yan Moriond

COSMOS Goals Study the assembly of visible and dark matter up to scales of 1014h-1 M as a function of redshift. Study the evolution of galaxies and AGNs as a function of the environment and redshift. Moriond

COSMOS requirements Environement: Galaxies and AGNs Area Image Quality Spectroscopy X-rays observations Galaxies and AGNs Depth Multi Wavelength Moriond

Area As large as possible ! Wide area is time consuming Need to have a variety of environment at all redshift. Wide area is time consuming 2 square degrees 50 Mpc at z = 0.5 88 Mpc at z = 1 137 Mpc at z = 2 170 Mpc at z = 3 COSMOS Local Group, poor cluster, virgo, 30% coma Courtesy of Andrew Benson Moriond

COSMOS Area Virgo Consortium Simulation Moriond

Depth At z =2 , IAB = 26 correspond to L* Moriond

Image Quality Morphology Mass Maps using weak lensing Moriond

COSMOS Area + Depth + Image Quality : ACS Treasury Program 590 HST orbits in cycles 12 and 13 2 square degree IAB = 27 (10 ) Proposal for cycle 14-15 for the g band 590 orbits g = 27,5 (10 ) Moriond

Field Location Equatorial Field Low Background: Low extinction VLT Subaru VLA ALMA TMT Low Background: X-ray survey IR survey Low extinction GALEX VVDS spectroscopy Moriond

VVDS 10h field McCracken et al. Moriond

VVDS 10h field Moriond

VVDS 10h field McCracken et al. Moriond

COSMOS Field Low Extinction Low Background IRAS 100 m: COSMOS: 0.9 MJy/sr Lockman: 0,5 MJy/sr XMM-LSS: 1.3 Mjy/sr: No bright radio/X-ray source 10:00:28.6+02:12:21 Moriond

COSMOS Field Low Extinction Low Background IRAC 8 m: COSMOS: 6.9 MJy/sr Lockman: 5.0 MJy/sr XMM-LSS: 7.1 Mjy/sr: No bright radio/X-ray source 10:00:28.6+02:12:21 Moriond

COSMOS Field Low Extinction Low Background MIPS 24 m: COSMOS: 32.3 MJy/sr Lockman: 18.4 MJy/sr XMM-LSS: 31.1 MJy/sr At most a loss of 20% in sensitivity w/r to non equatorial fields No bright radio/X-ray source 10:00:28.6+02:12:21 Moriond

zCOSMOS Large Program with VIMOS on VLT PI: Simon Lilly 540 hours over 4 semesters 25000 redshifts with 0.3 < z < 1.0 selected at I < 22.5 at least 50% sampling 12500 redshifts with 1.4 < z < 2.5 BZK & BM/BX selections 1000 redshifts of X-ray, radio and GALEX sources Moriond

COSMOS Observations ACS I band zCOMOS Megacam (5 nights), Subaru (25 nights) u*,B,g,V,r, i, z, NB814 to AB 27 VLA 1.4 GHz 8 Jy (1 ) XMM 10-15 cgs GALEX FUV = 26.1, NUV 25.8 (100 orbits) Moriond

COSMOS proposals ACS g band Spitzer IRAC MIPS imaging Stellar Mass SFR UV Radio CIBR Moriond

ACS Observations Progress Moriond

Subaru Deep Imaging Moriond

ACS Strong Lensing Van Waerbeke et al. Moriond

XMM COSMOS 1.6 Ms PI: G. Hasinger 1000 sources detected Moriond

Morphology-Density Relation Capak et al. Sample selection Eye classification Calibration of Gini indices Moriond

Morphology-Density Relation Elliptical fraction as a function of the environment and redshift. Good agreement with previous studies Even when measuring density with photo-z Moriond

Morphology-Density Relation Capak et al. Moriond

Morphology-Density Relation Moriond Capak et al.

Conclusion COSMOS is a Treasury program All data will be public ACS Spectra XMM Radio etc... IRSA is the data repository www.astro.caltech.edu/~cosmos Moriond