About Me

I am an Assistant Professor at the Department of Astronomy and Astrophysics (A&A) at University of Chicago, and a senior member of the Kavli Institute of Cosmological Physics (KICP). I co-lead the Survey Science Group at KICP.

I am an observational cosmologist and a survey scientist. My science interest is to use large optical survey data to study the evolution of the recent Universe through a technique called weak gravitational lensing. I am in particular interested in extracting information from small scales and high-order statistics. I'm also interested in combining the information from weak gravitational lensing with other measurements such as large-scale structure and the cosmic microwave background, to learn about cosmology as well as galaxy evolution and new physics. I am currently involved in the Dark Energy Survey and the Vera C. Rubin Observatory's Legacy Survey of Space and Time.

I received my undergrad degree at the the Physics Department at National Taiwan University. I finished my PhD in Physics at Stanford in 2013. My thesis was on Systematic Effects in Weak Lensing Measurements for Future Optical Surveys under Prof. Steve Kahn and Prof. Rafe Schindler. After PhD I was a postdoctoral researcher at the Institute of Astronomy at ETH Zurich 2013-2016, in the Cosmology group lead by Prof. Alexandre Refregier. And in 2016-2018 I was a KICP fellow.

My name is a creative translation from my parents, where the Chinese characters are 張=Chang and 芷維=Chihway.

I'm genuinly interested in pretty things --- science, art, nature and the simplicity of life.