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My main area of research is Cosmology. In particular, I’m studying how the next generation of large radio telescopes, such as MeerKAT in South Africa and the future SKA will be able to answer fundamental questions in Cosmology, from the nature of dark energy or the physics of the primordial Universe to the process of Reionization when the first stars and galaxies of the Universe were born. This research involves both analytical models and large scale numerical simulations as well as a good understanding of the telescopes setup. The huge volumes of data that will be provided by these experiments also allow for unique and exciting ways to develop novel statistical analysis techniques.
Experiments in which I’m currently involved: MeerKAT, SKA, PAPER, LOFAR, ASKAP, APERTIF, EUCLID.
My main areas of research has been on the late stages of stellar structure and evolution, in particular Asymptotic Giant Branch stars, and stellar oscillations, both linear analysis and nonlinear simulation. I have also dabbled a bit in observational cosmology.
The generation and evolution of cosmological perturbations that lead to large-scale structure, to gravitational waves and to magnetic fields in the Universe. Dark energy and modified gravity models for the late-time acceleration of the Universe and their observable predictions. Using observations, including radio telescopes like MeerKAT and SKA, to test models of the Universe.
I am currently a Professor in astrophysics at The University of Oxford. I am heavily involved in developing the science case for the next generation of radio telescopes such as the Low Frequency Array (LOFAR) and the Square Kilometer Array. I also lead one of the six public surveys to be conducted on the new VISTA near-infrared telescope.