ASX Star Talk: Stellar Fossils of the Early Universe
Hey stargazers! Ever wonder how astronomers study the history of galaxies? If so, join ASX at our Star Talk on Wednesday, October 30, in Lash Miller Chemical Laboratories (LM), Room 161. Professor Jeremy Webb will be illuminating the nature of globular clusters, and how we can use them to better understand galaxies! The free, public lecture itself is from 7:00pm-8:00pm followed, weather permitting, by a free, public telescope viewing atop MP. Everyone is welcome!
Star clusters lie at the cross-roads of star formation, galaxy formation, and galaxy evolution. Stars do not form alone in isolation, but in clustered environments surround by between several tens to several millions of stars. The current star cluster population of a galaxy is made up of newly formed clusters of young stars and old star clusters that formed at the same time as the galaxy itself. These old clusters, often called globular clusters, provide clues as to what a galaxy was like when it first formed and how it has evolved over time. I will discuss what we know about cluster formation and evolution, as well as how we can use clusters as tools to study the galaxy within which they orbit. To help gain an understanding of the present day properties of Galactic clusters, we will also explore what life would be like if our Sun was actually inside a cluster with the help of a virtual reality environment. Not only will the night sky look very different, but the type of science available to astronomers would also change.
Dr. Jeremy J. Webb is an Assistant Professor in U of T's Department of Astronomy & Astrophysics. An NSERC postdoctoral fellow, Prof. Webb is currently conducting research on Dynamical Evolution of Star Clusters, Dark Remnants, Dark Matter Substructure, Stellar Streams, Multiple Populations in Globular Clusters, and N-body Numerical Techniques.
Who can attend: Everyone
Fee: Free
Registration: Not required
Organized by: Astronomy & Space Exploration Society
Location: University of Toronto, Lash Miller Chemical Laboratories, Room 161, 80 St George St, Toronto, ON