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Physics & Astronomy Colloquium
March 8, 2017 @ 4:00 pm - 5:00 pm
Speaker: Kelsey Johnson (UVa)
Title: How were the most ancient objects in the universe formed?
Abstract: Ancient remnants from the early universe surround our galaxy. These relics, know as “globular clusters” have the potential to provide insight into the prevailing physical conditions during an epoch that cannot be directly observed. While some progress has been made, and we now know globular clusters can still be formed during extreme episodes of star formation in the relatively nearby universe, the actual physical conditions that give rise to globular clusters has vexed both observers and theorists for decades. With the new capabilities of the Atacama Large Millimeter Array (ALMA) we have the ability to probe the birth environments that gave rise to these ancient objects for the first time. This talk will give an overview of progress that has been made, and highlight the importance of using chemistry to help us understand physical conditions in the interstellar medium.
The colloquia will be preceded by light refreshments in GL227 from 3:45 – 4:00p.m.