10 citations · 14 across the 4 of their papers we have counts for
10 papers
A Keck/Deimos Survey of Red Giant Branch Stars in the Outskirts of M31
Annette Ferguson, Scott Chapman, Rodrigo Ibata +3
We are using the DEIMOS multi-object spectrograph on the Keck II 10m telescope to conduct a spectroscopic survey of red giant branch stars in the outskirts of M31. To date, velocit…
Detecting compact dark matter in galaxy clusters via gravitational microlensing: A2218 & A370
Artem Tuntsov, Geraint Lewis, Rodrigo Ibata +1
After decades of searching, the true nature of dark matter still eludes us. One potential probe of the form of dark matter in galaxy clusters is to search for microlensing variabil…
Measuring transverse velocities in gravitationally lensed extragalactic systems using an annual parallax effect
Artem V. Tuntsov, Mark A. Walker, Geraint F. Lewis
A parallax method to determine transverse velocity in a gravitationally lensed system is described. Using the annual motion of the Earth around the Sun allows us to probe the local…
The Structure of High Redshift Galactic Halos
Sara L. Ellison, Rodrigo Ibata, Max Pettini +4
Observations of multiple or lensed QSOs at high redshift can be used to probe transverse structure in intervening absorption systems. Here we present results obtained from STIS spe…
A best fit evolution scenario for the SCUBA galaxies
S. C. Chapman, G. F. Lewis, G. Helou
We explore the evolution of the SCUBA sub-mm galaxy population using Monte Carlo simulations to generate synthetic sub-mm/radio color magnitude diagrams. To represent the local dis…
High-Redshift Gravitationally Lensed Galaxies and Tunable Filter Imaging
Paul C. Hewett, Stephen J. Warren, Jon P. Willis +2
Most surveys for multiply-imaged gravitational lenses, outside of rich galaxy clusters, are based on sifting through large samples of distant sources to identify the rare examples…