Alan R. Duffy

The physics driving the cosmic star formation history (2009)

Schaye, Joop, Vecchia, Claudio Dalla, Booth, C. M., Wiersma, Robert P. C., Theuns, Tom, Haas, Marcel R., ...

We investigate the physics driving the cosmic star formation (SF) history using the more than fifty large, cosmological, hydrodynamical simulations that together comprise the OverWhelmingly Large...

Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology (2008)

Duffy, Alan R., Schaye, Joop, Kay, Scott T., Vecchia, Claudio Dalla

We use a combination of three large N-body simulations to investigate the dependence of dark matter halo concentrations on halo mass and redshift in the WMAP year 5 cosmology. The median relation...

Galaxy redshift surveys selected by neutral hydrogen using FAST (2007)

Duffy, Alan R., Battye, Richard A., Davies, Rod D., Moss, Adam, Wilkinson, Peter N.

We discuss the possibility of performing a substantial spectroscopic galaxy redshift survey selected via the 21cm emission from neutral hydrogen using the Five-hundred metre Aperture Spherical...