Welcome to my web page. I am currently a University Research Fellow funded by the Royal Society, and Professor in Astrophysics at UCL in the Mullard Space Science Laboratory. My primary research interests are in dark energy, weak gravitational lensing and applications of astrostatistical and Bayesian methods to cosmology and large scale structure measurements.

I currently co-lead the Euclid Weak Lensing Science Working Group, and also lead the CFHTLenS cosmology working group.

Surveys I am involved in:

Software I have contributed to:

Crowdsourcing experiments that I have run: