Summary
Keywords
Full Transcript
How did galaxies form, and how did the elements come to be? We can use galactic archaeology to answer these questions, looking at the chemical abundances of stars to determine the galaxy's history. Presentation: 00:57; speaker Q&A: 23:38; panel Q&A: 25:52 Date: August 9, 2019 Lecturer: Gina Duggan Title: Galactic Archaeology: Digging Through the Remnants of Galaxies Abstract: The Universe contains over 200 billion galaxies and how these galaxies are created, grow, change, and die impacts all other areas of astronomy. However, a galaxy changes so slowly that we will never observe them change in our lifetime. How can we possibly study how galaxies evolve when we cannot watch any of this occur? Galactic Archaeology! I will explain how “digging” through the chemicals contained in young and old stars currently alive in a galaxy enables you to picture how that galaxy has grown since its birth. We will also discuss the topic of my thesis: how Galactic Archaeology can even be used to inform what astrophysical source creates heavy elements, such as gold. Echo360 Two-Pane Video Stream: https://echo360.org/section/df8345ec-7d0c-4dc3-b450-65a423c24650/public Photos: https://www.flickr.com/photos/143414768@N07/albums/72157710358530897
Continue this lesson in the app
Install CourseHive on Android or iOS to keep learning while you move.
