Galaxy groups in the COSMOS Alexis Finoguenov Max-Planck Institut fuer extraterrestrische Physik L....

Galaxy groups in the COSMOS Galaxy groups in the COSMOS

Alexis FinoguenovAlexis FinoguenovMax-Planck Institut fuer extraterrestrische PhysikL. Guzzo,L. Guzzo, G. Hasinger, N. Scoville, A. Leauthaud, J.P. G. Hasinger, N. Scoville, A. Leauthaud, J.P.

Kneib, H. Boehringer, Kneib, H. Boehringer, & COSMOS collaboration& COSMOS collaboration

Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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XMM

COSMOS

Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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COSMOS

420 photo-z structures:z=0.1z=0.3z=0.5z=0.7z=1

PHOTOZ

Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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X-ray cluster catalog

Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Redshift distribution

Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Log(N)-log(S)

Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Luminosity Function

z<0.6z>0.60<z<1.3

BCS (Ebeling et al. 1998)

Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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COSMOS: X-ray selected clusters with weak lensing detection

Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Stacked lensing signal

Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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M(lensing)-T relation

11 most luminousclusters at z~0.2Bardeau et al.

mergers

•Merger clusters scatter more from the M-T relation• Luminosity selection is contaminated by the low-mass clusters

Stackedanalysis

Vikhlinin et al. 2005

AF et al. 2001

Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Alexis Finoguenov X-ray Scaling relation with lensing mass estimates

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Conclusions

• COSMOS survey explores the new regime of cluster fluxes

• logN-logS is found to be similar yet somewhat higher then the predictions form the previous surveys

• No evolution of the X-ray luminosity function is detected at probed luminosities

• Lensing mass estimates extend to down to group regime

Roberto AbrahamMasaru AjikiJustin AlpertHerve AusselJosh BarnesMarcella BrusaDaniela CalzettiPeter CapakJohn CarlstromChris CarilliAndrea CimattiAndrea ComastriMarcella CorolloEmannuel DaddiRichard EllisMartin ElvisAmr El ZantShawn EwaldMike FallAlexis Finoguenov

Alberto FranceschiniMauro GiavaliscoRichard GriffithsGigi GuzzoGunther HasingerChris ImpeyJean-Paul KneibKarel NelJin KodaAnton KoekemoerAlexie LeauthaudOlivier LeFevreIngo LehmannSimon LillyThorsten LiskerCharles LiuRichard MasseyHenry McCrackenYannick MellierSatoshi MiyazakiBahram MobasherTakashi Murayama

Colin NormanAlexandre RefregierAlvio RenziniJason RhodesMike RichDave SandersShunji SasakiDave SchminovichEva SchinnererNick ScovilleMarco ScodeggioKartik ShethPatrick ShopbellJames TaylorDave ThompsonNeil TysonMeg UrryYoshi TaniguchiLudovic Van WaerbekePaolo VettolaniSimon WhiteLin Yan

COSMOS -- team & collaborators