activity
19992010
most citedThe Dissection of Abell 2744: A Rich Cluster Growing Through Major and Minor Mergers

189 citations · 753 across the 15 of their papers we have counts for

collaborators

14 papers

astro-ph.CO2010★ 189 cited

The Dissection of Abell 2744: A Rich Cluster Growing Through Major and Minor Mergers

Matt S. Owers, Scott W. Randall, Paul E. J. Nulsen +3

New Chandra X-ray data and extensive optical spectroscopy, obtained with AAOmega on the 3.9 m Anglo-Australian Telescope, are used to study the complex merger taking place in the g…

astro-ph2006★ 24 cited

Chandra Observation of Abell 2065: An Unequal Mass Merger?

Marios Chatzikos, Craig L. Sarazin, Joshua C. Kempner

We present an analysis of a 41 ks Chandra observation of the merging cluster Abell 2065 with the ACIS-I detector. Previous observations with ROSAT and ASCA provided evidence for an…

astro-ph2005★ 62 cited

AGN feedback and gas mixing in the core of NGC 4636

E. O'Sullivan, J. M. Vrtilek, J. C. Kempner

Chandra observations of NGC 4636 show disturbances in the galaxy X-ray halo, including arm-like high surface brightness features (tentatively identified as AGN driven shocks) and a…

astro-ph2005★ 46 cited

AWM 4 - an isothermal cluster observed with XMM-Newton

E. O'Sullivan, J. M. Vrtilek, J. C. Kempner +2

We present analysis of an XMM observation of the poor cluster AWM 4. The cluster is relaxed and its X-ray halo is regular with no apparent substructure. Azimuthally averaged radial…

astro-ph2004★ 50 cited

Chandra and XMM-Newton Observations of the Double Cluster Abell 1758

Laurence P. David, Joshua Kempner

Abell 1758 was classified as a single rich cluster of galaxies by Abell, but a ROSAT observation showed that this system consists of two distinct clusters (A1758N and A1758S) separ…

astro-ph2003

Chandra Observation of the Core of Abell 576

Joshua C. Kempner, Laurence P. David

We present data from a Chandra observation of the nearby cluster of galaxies Abell 576. The core of the cluster shows a significant departure from dynamical equilibrium. We show th…