Regular biography
Alessandro Sonnenfeld is an associate professor in the Department of Astronomy at Shanghai Jiao Tong University. His research focuses on galaxy evolution and cosmology, particularly through the use of gravitational lensing to study the distribution of matter in and around galaxies. He aims to contribute to understanding dark matter by combining strong and weak lensing techniques. Sonnenfeld has conducted postdoctoral research at the Kavli Institute for the Physics and the Mathematics of the Universe, the University of California Los Angeles, and Leiden University. He is a member of international collaborations such as KiDS, TDCOSMO, and 4MOST. His work includes developing statistical methods for analyzing lensing data and applying them to upcoming surveys like the Chinese Space Station Telescope.
Scholar-generated biography
Alessandro Sonnenfeld is a researcher at Shanghai Jiao Tong University, specializing in early-type galaxies, gravitational lensing, and Bayesian inference. His work focuses on using gravitational lensing to measure the Hubble constant (H0) with high precision, leveraging time-delay cosmography and strong lensing systems. He has contributed to the H0LiCOW and TDCOSMO projects, which aim to resolve the tension between early- and late-Universe measurements of H0. His research also explores dark matter distribution in massive early-type galaxies and the use of adaptive optics imaging to study lens systems. Sonnenfeld's publications highlight the importance of Bayesian methods in cosmological inference and the role of gravitational lensing in probing dark matter and cosmological parameters.