January 11, 2011 Monique ARNAUDPlanck 2011 conference

X-ray Properties

of Planck SZ

Clusters

Monique ARNAUD (CEA Saclay)

on behalf of The Planck Collaboration

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Introduction

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Cluster IC

CMB

Probing the same component

Xne

2

vol

(T)dv

i y nelos

Tdl

Coma ROSAT

Relation between X and SZ properties

expected

January 11, 2011 Monique ARNAUDPlanck 2011 conference

X-ray prediction versus SZ data

January 11, 2011 Monique ARNAUDPlanck 2011 conference

X-ray prediction versus SZ data

missing hot baryons ?

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Andersson et al. 2009

WMAP

REXCESS

SPT

Melin et al. 2010

X-ray prediction versus SZ data

Or not missing hot baryons ?

January 11, 2011 Monique ARNAUDPlanck 2011 conference

REXCESS

XMM

Universal pressure profile

Predicting the SZ signal

i y nelos

Tdl ⇒ Pressure is the fundamental quantity

Arnaud et al 2010

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Tight YSZ –Yx relation

depends on Tmw/TX

YSZ - Lx relation with more scatter

Depends on density distribution

YSZ (P neT)dVYX MgasTX

Arnaud et al 2010

LX ne2 (T)dV

Predicting the SZ signal

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Planck view of

the ‘missing’ hot baryons

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Three complementary studies

1882 X-ray selected clusters

with homogenised L500, z

MXCX (Piffaretti et al 2010)

Extraction and bining of Planck signal

Planck selected clusters

High quality SZ signal

Planck consortium 2011f

Planck consortium 2011g Planck consortium 2011e

Known clusters

with good XMM

archival data

Newly confirmed

with XMM

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Statistical analysis of MCXC+

X-ray prediction and SZ data fully consistent

See J.B Melin talk for more about relation scatter and evolution

The YSZ - LX relation

January 11, 2011 Monique ARNAUDPlanck 2011 conference

X-ray prediction and SZ data fully consistent

ESZ – XMM archive sample

See E. Pointecouteau talk for more about various relation calibration and

scatter measurement

The YSZ - YX relation

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Planck - XMM validation follow up sample

X-ray prediction and SZ data

consistent

Slight Malmquits bias

NO MISSING HOT BARYONS

January 11, 2011 Monique ARNAUDPlanck 2011 conference

What new clusters Planck is

detecting?

Preview from

XMM validation follow-up

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Pratt et al, 2009

Da Silva et al, 2009

YSZ expected low scatter mass proxy

XMM REXCESS

LX high scatter mass proxy

SZ surveys expected to provide close to unbiaised mass selected samples

Some expected differences

January 11, 2011 Monique ARNAUDPlanck 2011 conference

XMM confirmed Planck candidates

Pre-view from XMM validation follow up

REXCESS gallery

Pratt et al, 2009

More disturbed morphology

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Flatter density profile on average

January 11, 2011 Monique ARNAUDPlanck 2011 conference

Flatter density profile on average

And X-ray underluminous for their mass

January 11, 2011 Monique ARNAUDPlanck 2011 conference

New Planck clusters versus RASS survey

Completing RASS surveys

above z~0.3

• more sensitive than Reflex/Noras

• Complete MACS limited by sky coverage and BCS

• Find new massive disturbed clusters below RASS flux limit

January 11, 2011 Monique ARNAUDPlanck 2011 conference

zopt=0.45/0.46±0.02/0.45; zX =0.45 (A) A:kT ~3.6 keV 500=2.2’

Physics : sum of indv SZ signal ?; boosted by merger shocks? Contribution of

filaments ? ⇒ require deeper XMM observation

Cosmology: how many ? must we take SC in the ‘selection’ function?

First super-cluster(s) blinded detected in SZ

PLANCK XMM-NEWTON

January 11, 2011 Monique ARNAUDPlanck 2011 conference

From Planck SZ results, on selected local sub­sample of 62 ESZ clusters with high­

quality XMM­Newton archival data and using the compilation of about 1800 X­ray

clusters

⇒ excellent agreement between observed SZ quantities and X­ray­based

predictions.

⇒ robustness and consistency of our overall view of Intra­Cluster Medium

properties.

⇒ close the long standing open question of the ‘missing’ hot baryons

From XMM validation follow-up of Planck cluster candidate

⇒ Planck may be detecting a population of dynamically perturbed clusters

under­represented in X­ray surveys

More on SZ-X ray scaling properties in next talks (scatter, evolution..)

Much deeper X-ray, optical (lensing) and SZ follow-up of Planck SZ clusters ..

Conclusions