Smith, Graham P., Ebeling, Harald, Limousin, Marceau, Kneib, Jean-Paul, Swinbank, A. M., Ma, Cheng-Jiun, ...
We present Advanced Camera for Surveys observations of MACSJ1149.5+2223, an X-ray luminous galaxy cluster at z=0.544 discovered by the Massive Cluster Survey. The data reveal at least seven...
Sand, David J., Treu, Tommaso, Ellis, Richard S., Smith, Graham P., Kneib, Jean-Paul
We utilize existing data for the galaxy clusters MS 2137–23 and Abell 383 to present improved measures of the distribution of dark and baryonic material in the clusters' central regions. Our...
A deep large binocular telescope view of the Canes Venatici I dwarf galaxy (2008)
Martin, Nicolas F., Coleman, Matthew G., Rix, Hans-Walter, Bell, Eric F., Sand, David J., ...
A deep Large Binocular Telescope view of the Canes Venatici I dwarf galaxy (2008)
Martin, Nicolas F., Coleman, Matthew G., Rix, Hans-Walter, Bell, Eric F., Sand, David J., ...
We present the first deep color-magnitude diagram of the Canes Venatici I (CVn I) dwarf galaxy from observations with the wide-field Large Binocular Camera on the Large Binocular Telescope. Reaching...
A deep Large Binocular Telescope view of the Canes Venatici I dwarf galaxy (2007)
Martin, Nicolas F., Coleman, Matthew G., Rix, Hans-Walter, Bell, Eric F., Sand, David J., ...
We present the first deep color-magnitude diagram of the Canes Venatici I (CVnI) dwarf galaxy from observations with the wide field Large Binocular Camera on the Large Binocular Telescope. Reaching...
The Elongated Structure of the Hercules dSph from Deep LBT Imaging (2007)
Coleman, Matthew G., Martin, Nicolas F., Rix, Hans-Walter, Sand, David J., Bell, Eric F., ...
We present a deep, wide-field photometric survey of the newly-discovered Hercules dwarf spheroidal galaxy, based on data from the Large Binocular Telescope. Images in B, V and r were obtained with...
Coleman, Matthew G., Martin, Nicolas F., Rix, Hans-Walter, Sand, David J., Bell, Eric F., ...
We present a deep, wide-field photometric survey of the newly discovered Hercules dwarf spheroidal galaxy (dSph), based on data from the Large Binocular Telescope. Images in B, V, and r were obtained...
Optical and Infrared Non-detection of the z=10 Galaxy Behind Abell 1835 (2006)
Smith, Graham P., Sand, David J., Egami, Eiichi, Stern, Daniel, Eisenhardt, Peter R.
Gravitational lensing by massive galaxy clusters is a powerful tool for the discovery and study of high redshift galaxies, including those at z>=6 likely responsible for cosmic re-ionization. Pello...
A unique small-scale gravitational arc in Abell 1201 (2003)
Edge, Alastair C., Smith, Graham P., Sand, David J., Treu, Tommaso, Ebeling, Harald, Allen, Steven W., ...
We present a snapshot Hubble Space Telescope (HST) image of the galaxy cluster A1201 (z=0.169), revealing a tangential arc 2arcsec from the brightest cluster galaxy (BCG). Keck-ESI spectroscopy...
The Dark Matter Distribution in the Central Regions of Galaxy Clusters: Implications for CDM (2003)
Sand, David J., Treu, Tommaso, Smith, Graham P., Ellis, Richard S.
We have undertaken a spectroscopic survey of gravitational arcs in a carefully chosen sample of six clusters each containing a dominant brightest cluster galaxy. We use these systems to study the...
Sand, David J., Treu, Tommaso, Ellis, Richard S.
We present new spectroscopic observations of the gravitational arcs and the brightest cluster galaxy (BCG) in the cluster MS2137-23 (z=0.313) obtained with the Echelle Spectrograph and Imager on the...