Galaxy Cannibals: The Evolution of Massive Galaxies Through Cosmic Time

Dr. Rachel Bezanson (University of Pittsburgh)

Massive galaxies reside in the densest and oldest regions of the Universe, yet we are only beginning to understand their formation history. Once thought to be relics of a much earlier time, the most massive local galaxies are red and dead elliptical galaxies, with little ongoing star formation or organized rotation. In the last decade, observations of their assumed progenitors have demonstrated that the evolutionary histories of massive galaxies have been far from static. Instead, billions of years ago, massive galaxies looked completely different – only changing and growing by interacting with, tearing apart, and eventually devouring their neighbors! We will discuss on-going observational studies of the structure, dynamics, and compositions of massive galaxies in the very distant Universe, and outline prospects for further understanding of the history of these intriguing objects with next generation observatories and instruments.

Doors open at 7pm. Presentations start at 8pm in Murch Auditorium.

Please note that Museum exhibits and galleries are closed during this event.