简介

Professor Allen's research examines the physics of galaxies and galaxy clusters, examining how they form and evolve with time. He has pioneered the use of galaxy clusters as cosmological probes, investigating the natures of dark matter, the weakly interacting yet dominant matter component of the universe, and dark energy, the driving force behind cosmic acceleration. Intrigued by why the largest galaxies are not as bright as theory had predicted, Allen and collaborators shed new light on connections to their central supermassive black holes and the formation of relativistic jets, which heat the galactic gas and prevent further star formation. Professor Allen has been involved in the construction and utilization of some of the most powerful galaxy cluster catalogs ever made. His research team is carrying out a broad range of multi-wavelength observations, including X-ray, optical, and radio measurements, and deep gravitational lensing studies.