... A Snapshot Survey of The Most Massive Clusters of Galaxies . 12169 . ... ACS optical/far-red image of the galaxycluster, Abell 2218; note the lensed arcs ... as intense concentrations of mass, galaxyclusters provide highly efficient ...
... Jack O. Burns . Stormy Weather and Cluster Radio Galaxies . ... Testing Minimum Energy with Powerful Radio Sources in Clusters of Galaxies . ... Non-Rich Cluster Radio Galaxies: Optical and Radio Properties and the Power-Size ...
... of a Complete Sample of X-ray Luminous GalaxyClusters from Redshift 0.3 to 0.7 ... A Snapshot Survey of Brightest ClusterGalaxies and Strong Lensing to z = 0.9 . ... can also act as gravitational lenses, in a manner analogous to galaxyclusters ...
... Stars . Star Clusters and Nebulae . Galaxies and Clusters of Galaxies . Quasars and Active Galaxies . Uncataloged Targets . ... For clusters of galaxies, the Abell catalog number, but only if an NGC or IC number is not available (e.g., ABELL2029 ). ...
... Rest Frame Optical Spectroscopy of GalaxyClusters at 1.6 . 12205 . ... far-red image of the galaxycluster, Abell 2218, including an extensive number of ... as intense concentrations of mass, galaxyclusters provide highly efficient ...
... The center of a rich cluster of galaxies is a special position and the galaxies that ... galaxy Perseus A) is the brightest clustergalaxy in the Perseus cluster of galaxies ...
... An Arecibo Search for Broad 21 cm Lines of Atomic Hydrogen in Clusters of Galaxies. ... 3.'3 (~100 kpc) of 21 clusters of galaxies with the Arecibo telescope utilizing the ...
... interactions, mergers and related star formation; galaxy formation and evolution in groups and clusters, and in the field ... RECENT HST PROJECTS: Medium redshift galaxycluster CL0939+4713; IIZw28 and the Cartwheel Galaxy; the globular clusters and ...