On January 8, 2026, the American Astronomical Society (AAS) announced 23 new Fellows for 2026, including Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) faculty member Claude-André Faucher-Giguère. A major international organization of professional astronomers, astronomy educators, and amateur astronomers, AAS recognized Faucher-Giguère for significant contributions to a wide range of topics in cosmological hydrodynamics and theoretical galaxy formation, including the circumgalactic medium, black hole feedback, and numerical models of star formation and stellar feedback.
Faucher-Giguère is a Professor of Physics and Astronomy in Northwestern’s Weinberg College of Arts and Sciences. In addition to CIERA, Faucher-Giguère is a senior member of the NSF-Simons AI Institute for the Sky (NSF-Simons SkAI).
Faucher-Giguère studies theoretical astrophysics and cosmology, with particular emphasis on galaxy formation and evolution. His research focuses on understanding the multi-scale physical processes that govern galaxy formation in the cosmological context, including star formation, galaxy-black hole co-evolution, galactic dynamics, and connections with the intergalactic medium and cosmology. His multi-pronged approach includes large-scale numerical simulations, analytic modeling, and comparison with observational data.
“It is an honor to receive this recognition from the AAS, especially considering how accomplished the other new Fellows are,” Faucher-Giguère said. “Most of my research has been done in close collaboration with students and other colleagues, so I am also thankful to all my exceptional collaborators for making this possible.”
View the official announcement from the American Astronomical Society.