Pengjie Zhang

Dr. Pengjie Zhang is a professor at the Astronomy Department of Shanghai Jiao Tong University. He obtained his B.S. from Peking University in 1997 and Ph.D. from the University of Toronto in 2003. He spent two years at Fermilab as a postdoc before joining the Shanghai Astronomical Observatory of the Chinese Academy of Sciences in 2005. In 2012, he became a distinguished professor at Shanghai Jiao Tong University. His research focuses on the large scale structure of the universe and its applications in fundamental cosmology. He has developed theoretical models of various Sunyaev Zel'dovich effects and contributed to the study of cosmic flows and violations of the Copernican Principle.

Pengjie Zhang is a researcher in cosmology, astrophysics, and astronomy, focusing on observational tests of gravity and large-scale structure of the universe. His work explores the relationship between gravitational lensing and matter overdensity, the influence of baryons on matter clustering, and the Sunyaev-Zel'dovich effect in cosmic microwave background anisotropies. Zhang investigates modified gravity theories, the kinetic Sunyaev-Zel'dovich effect, and weak lensing bispectrum to constrain cosmological parameters. His research also includes the detection of dark matter skewness and the behavior of gravity across different cosmic scales, from the solar system to galaxy clusters. Zhang contributes to experiments like bigBOSS and studies cosmic magnification to map dark matter.