Events at Physics

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Events on Thursday, December 5th, 2019

Cosmology Journal Club
Time: 12:00 pm - 1:00 pm
Place: 5242 Chamberlin Hall
Abstract: Please visit the following link for more details:
Feel free to bring your lunch!
If you have questions or comments about this journal club, would like to propose a topic or volunteer to introduce a paper, please email Ross Cawthon ( and Santanu Das (
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PGSC Professional Development Seminar
Physicists at Google
Time: 2:30 pm - 3:30 pm
Place: 5310 Chamberlin Hall
Speaker: Homer Wolfmeister, Google
Abstract: Running a planet-scale computer requires innovation for delivering storage, data processing, and ML computation at scale. Homer will describe some of Google’s present challenges, and how teams at the Madison office have contributed unique solutions to meet those challenges. He’ll also cover what it’s like to interview for Google, and how research experience in research Physics is valued and applicable to a wide variety of ongoing work at Google.
Host: Rob Morgan, graduate student
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Astronomy Colloquium
Journey: Jets & Outflows Revealing the Nature and Evolution of Massive YSO's"
Time: 3:00 pm - 5:00 pm
Place: 4421 Sterling Hall, Coffee and cookies 3:30 PM, Talk begins 3:45 PM
Speaker: Esteban Araya, Western Illinois
Abstract: High-mass stars are responsible for some of the most spectacular astronomical objects such as supernova remnants and stellar mass black holes. High-mass stars form in giant molecular clouds, generate copious amounts of ionizing photons responsible for the development of HII regions, and drive ionized jets and massive molecular outflows that contribute to the dissipation of their natal clouds. Highlights of a multi-scale effort by our group to investigate jets and outflows in high-mass star forming regions will be presented. A central component of our work has been student involvement in the search and characterization of atomic and molecular tracers of jets, outflows and the expansion of ionized gas at microwave frequencies. In particular, we are studying molecular masers as tracers of dynamic phenomena in high-mass star forming regions, including long-term variability and periodic flares, which could be indicative of episodic accretion events in young binary systems.
Host: Ed Churwell, Emeritus professor
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