X-ray Properties of Planck SZ Clusters - ias.u-psud.fr · January 11, 2011 Planck 2011 conference...
Transcript of X-ray Properties of Planck SZ Clusters - ias.u-psud.fr · January 11, 2011 Planck 2011 conference...
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January 11, 2011 Monique ARNAUDPlanck 2011 conference
X-ray Properties
of Planck SZ
Clusters
Monique ARNAUD (CEA Saclay)
on behalf of The Planck Collaboration
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January 11, 2011 Monique ARNAUDPlanck 2011 conference
Introduction
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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
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January 11, 2011 Monique ARNAUDPlanck 2011 conference
X-ray prediction versus SZ data
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January 11, 2011 Monique ARNAUDPlanck 2011 conference
X-ray prediction versus SZ data
missing hot baryons ?
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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 ?
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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
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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
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January 11, 2011 Monique ARNAUDPlanck 2011 conference
Planck view of
the ‘missing’ hot baryons
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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
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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
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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
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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
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January 11, 2011 Monique ARNAUDPlanck 2011 conference
What new clusters Planck is
detecting?
Preview from
XMM validation follow-up
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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
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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
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January 11, 2011 Monique ARNAUDPlanck 2011 conference
Flatter density profile on average
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January 11, 2011 Monique ARNAUDPlanck 2011 conference
Flatter density profile on average
And X-ray underluminous for their mass
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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
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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
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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