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Baryon Content of Massive Galaxy Clusters at z=0-0.6
Yen-Ting Lin, S. Adam Stanford, Peter R. M. Eisenhardt +3
We study the relationship between two major baryonic components in galaxy clusters, namely the stars in galaxies, and the ionized gas in the intracluster medium (ICM), using 94 clu…
Dark Matter Halo Profiles of Massive Clusters: Theory vs. Observations
Suman Bhattacharya, Salman Habib, Katrin Heitmann +1
Dark matter-dominated cluster-scale halos act as an important cosmological probe and provide a key testing ground for structure formation theory. Focusing on their mass profiles, w…
The 400d Galaxy Cluster Survey weak lensing programme: II: Weak lensing study of seven clusters with MMT/Megacam
Holger Israel, Thomas Erben, Thomas H. Reiprich +3
Evolution in the mass function of galaxy clusters sensitively traces both the expansion history of the Universe and cosmological structure formation. Robust cluster mass determinat…
X-Ray surface brightness and gas density fluctuations in the Coma cluster
E. Churazov, A. Vikhlinin, I. Zhuravleva +6
X-ray surface brightness fluctuations in the core ( kpc) region of the Coma cluster observed with XMM-Newton and Chandra are analyzed using a 2D power spectrum appr…
Average Heating Rate of Hot Atmospheres in Distant Clusters by Radio AGN: Evidence for Continuous AGN Heating
C. -J. Ma, B. R. McNamara, P. E. J. Nulsen +2
We examine atmospheric heating by radio active galactic nuclei (AGN) in distant X-ray clusters by cross correlating clusters selected from the 400 Square Degree (400SD) X-ray Clust…
Evidence for Rapid Redshift Evolution of Strong Cluster Cooling Flows
R. Samuele, B. R. McNamara, A. Vikhlinin +1
We present equivalent widths of the [OII] and Ha nebular emission lines for 77 brightest cluster galaxies (BCGs) selected from the 160 Square Degree X-ray survey. We find n…