Dr. Eric Bell

Biography

Eric Bell studies the physics of galaxy formation and growth using large survey datasets in conjunction with rich simulation datasets. His current research interests are focused on understanding the effects of galaxy mergers on disks, bulges, and black holes, and how these mergers affect satellite galaxies and the processes that can cause star formation to slow or stop altogether. Bell is also deeply involved in efforts to improve equity within courses and majors at the University of Michigan. His notable results include research on decoding galactic merger histories of present-day galaxies, utilizing information from satellite mergers. He has developed methods to estimate previously merged galaxies using resolved-star data from nearby galaxies and theoretical simulations. His application of these methods to the Andromeda Galaxy revealed its minor merger history with the massive galaxy M32, which influenced its disk and triggered a starburst. His collaborative work has discovered multiple satellites around the Milky Way that stem from significant mergers, providing observational support for the evolution of non star-forming galaxies, which were thought to have formed in the early universe. Recent research indicates they may still experience star formation based on their central density and black hole prominence.

Research Interests

Courses