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Modeling Tidal Streams in evolving dark matter halos
Jorge Penarrubia, Andrew J. Benson, David Martinez-Delgado +1
We explore whether stellar tidal streams can provide information on the secular, cosmological evolution of the Milky Way's gravitational potential and on the presence of subhalos.…
The Epoch of Reionization
A. J. Benson, Naoshi Sugiyama, Adi Nusser +1
We have modelled the process of reionization of the IGM by photoionization by galaxies, in order to predict the epoch of reionization. We use a sophisticated semi-analytic model to…
Discovery of a very extended X-ray halo around a quiescent spiral galaxy - the "missing link" of galaxy formation
Kristian Pedersen, Jesper Rasmussen, Jesper Sommer-Larsen +3
Hot gaseous haloes surrounding galaxies and extending well beyond the distribution of stars are a ubiquitous prediction of galaxy formation scenarios. The haloes are believed to co…
The broken hierarchy of galaxy formation
R. G. Bower, A. J. Benson, R. Malbon +5
Recent observations of the distant Universe suggest that much of the stellar mass of bright galaxies was already in place at . This presents a challenge for models of galaxy f…
The SCUBA HAlf Degree Extragalactic Survey (SHADES) -- I. Survey motivation, design and data processing
A. M. J. Mortier, S. Serjeant, J. S. Dunlop +2
The SCUBA HAlf Degree Extragalactic Survey (SHADES) is a major blank-field extragalactic sub-mm survey underway at the James Clerk Maxwell telescope.SHADES aims to cover half a squ…