Marguerite PIERRE CEA Saclay ARCHES scientific workshop Paris - PowerPoint PPT Presentation

Marguerite PIERRE CEA Saclay ARCHES scientific workshop Paris December, 2015

XXL in short: 1) FIND ~ 500 X-ray clusters in 50 deg 2 2) DO COSMOLOGY Background image : CFHT i X-ray clusters ~ 5% Blue contours : XMM

XLSSC 001 @ z=0.61

XLSSC 008 @ z=0.30 Working with these data : difficult ! : misleading (Poisson) : ambitious … but feasible and exciting !

ž XMM VLP (2010) following XMM-LSS (2000-2010) : • 2 x 25 deg 2 area • Total time > 6Ms • Largest XMM programme to date ž An international consortium gathering ~ 100 scientists. ž The 542 XMM observations were completed in 2013 ž First series of papers submitted to A&A in July 2015

1. Scientific motivations 2. The XMM observations 3. The follow-up programme 4. The cluster catalogue 5. Overview of the first results : 13 papers 6. A comprehensive associated simulation programme. Future

ž Obtain a sample of ~ 500 clusters of galaxies out to z~1 ž Well-defined selection effects ž Self-consistent cluster mass measurements ž Cluster counts AND cluster LSS è Standalone cosmological constraints

XXL Ref. Dark Energy Task Force *clusters* Pierre et al 2011

LSS Surveys Roadmap ! spectroscopy BOSS eBOSS imaging Dark Energy Survey HETDEX Stage III Hyper-Suprime Prime Focus Spectro. XMM-XXL Stage IV D.E. Spectro. Instr. EUCLID Large Synoptic Survey Telescope WFIRST -AFTA 2014 2016 2018 2020 2022 2024 2026 2028 2030 2032 High degree of complementary between missions I. Shipsey Image: Ian Shipsey

ž Cluster physics ~ 500 clusters • Scaling relations • Baryon budget • Galaxies in clusters ž AGN physics ~ 25,000 AGNs • AGN evolution • AGNs in LSS • Search for exotic and very distant objects

XXL standard processing 1: F. Pacaud Processing for the diffuse background: S. Snowden

XXL-N 25 deg 2 EXPO map Moon In CFHTLS-W1 2h23 -5d00 (extension of the XMM-LSS field)

XXL-N XXL north 13 pointings (+2 thanks to mosaic mode) Observed Good Usable Lost BKG map BKG map 1 deg 1 deg

XXL-S 25 deg 2 23h30 -55d00 within the SPT 100 deg2 Deep Field EXPO map

XXL south 1 deg 7 pointings (+1 with mosaic) Observed Good Usable Lost BKG map

z = 0.053 z = 1.22

I 3.6 µ m 4.5 µ m

~ surface brightness limited

Class 1 sample Core radius (arsec) Not a flux limit ! Flux (cts/s) Pacaud et al 2006

ž Deep multi-band imaging • CFHTLS • DECam (Lidman et al) • HSC ž Extensive spectroscopic follow-up • ESO LP – NTT & VLT (Adami et al) • WHT (Poggianti et al) • AAOmega (Lidman et al) • Associated with GAMA and VIPERS

ž Full IR coverage • Spitzer • WIRCAM @ CFHT • VISTA ž On-going radio surveys • GMRT (Raychaudury et al) • VLA, ATCA (Smolcic et al) • SPT, ACT ž Existing public surveys • SDSS, Galex, . . .

Selction: C1+C2 flux in r=1’ (>3 10 -14 )

Brightest 100 cluster sample Self-consistent analyses WMAP9 cosmology assumed

Slope 2.66 +/- 0.15 E(z) 1.46+/-0.80 !CAVEAT! Compatible with self-similar evolution

38 XXL clusters with CFHT-Lens

Self-similarity 40% offset ? 38 XXL clusters with CFHT-Lens

No evolution for F(L x ) !

} OWLS models

Using } lensing OWLS models masses

. XXL 100 sample

XMM photon map Optical galaxy density contours Image size 20’x13’

• First XXL results • 13 papers • General presentation • The 100 brightest clusters + science • A few interesting clusters • The 1000 brightest AGNs • VLA and ATCA catalogues • ESA-ESO-A&A press release on December 15th

• General catalogues (Milano) • X-ray • Optical • Radio http://cosmosdb.iasf-milano.inaf.it/XXL/ • Dedicated cluster database (Lyon) • X-ray parameters • X-ray, optical, IR images • Detail of the redshift measurements • Follow-up information http://xmm-lss.in2p3.fr:8080/xxldb/ index.html

~ 500 clusters ~ 10 000 AGNs (5 10 -15 erg/s/cm 2 , completeness limit) > 25 000 AGNs in total

ž Reprocessing of the X-ray data – with overlap ž Cosmology with the full cluster sample (2016) Simultaneous fit of: • Cosmology • Selection effects • Cluster physics evolution (scaling relations – baryon fraction) ž Use numerical simulations to refine the selection function: • OWLS (McCarthty et al) • Aardvark (Evrard et al) • Horizon (Devriendt et al) • DEUS (Alimi et al) ž And, of course, AGN LSS and AGN science ž Final multi- λ catalogues => Legacy

OWLS simulations (X-ray flux) 10ks XMM photon image McCarthy, Le Brun, 2014 Faccioli, Sauvageot et al in

15 December 2015 ESA-ESO A&A press-release 13 papers Stay tuned!