My research focuses on the connection between galaxies and their dark-matter haloes, using data from large photometric, spectroscopic and radio surveys. I work with HI interferometry, stellar and ionised-gas kinematics, weak gravitational lensing and related probes to study how halo structure varies across galaxy populations and redshifts. A central theme is developing Bayesian methods that handle these datasets within a consistent statistical framework while clarifying the strengths and limitations of different dynamical tracers. I am also interested in how large-scale structure—particularly anisotropic environments—shapes galaxy and halo properties, and in using constrained simulations to interpret these relationships. In parallel, I explore non-parametric, data-driven ways of describing halo profiles, including approaches based on symbolic regression.
Lensing of space time around a black hole. At Oxford we study black holes observationally and theoretically on all size and time scales - it is some of our core work.
Credit: ALAIN RIAZUELO, IAP/UPMC/CNRS. CLICK HERE TO VIEW MORE IMAGES.
Dr Tariq Yasin
Postdoctoral Research Assistant