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Astronomy Events

Fall 2022

The Southern Stellar Stream Spectroscopic Survey: Overview and Latest Science Result
August 29, 2022 11:30 am – 12:30 pm (CDT) MIST M102
The Southern Stellar Stream Spectroscopic Survey: Overview and Latest Science Result

Speaker: Ting Li (University of Toronto)Host: Justin Spilker

The Southern Stellar Stream Spectroscopic Survey (S5) is an ongoing spectroscopic program that maps the newly discovered stellar streams with the fiber-fed AAOmega spectrograph on the Anglo-Australian Telescope (AAT). S5 is the first systematic program pursuing a complete census of known streams in the Southern Hemisphere, providing a uniquely powerful sample for understanding the building blocks of the Milky Way's stellar halo, the progenitors [...]
Exploring the Production of High-Energy Photons with Reionization Analogue Galaxies
September 12, 2022 11:30 am – 12:30 pm (CDT) MIST M102
Exploring the Production of High-Energy Photons with Reionization Analogue Galaxies

Speaker: Grace Olivier (Texas A&M University)Host: Justin Spilker

Currently, the observational and theoretical toolbox cannot discern between accretion onto black holes or hot massive stars as the source of ionizing photons for this cosmic reionization. The key to understanding the physical processes responsible for reionizing the universe are the nearby galaxies that are analogues to galaxies during the [...]
Luminous Merger Between Two Star-forming Galaxies 1.7Gyr After the Big Bang
September 12, 2022 11:30 am – 12:30 pm (CDT) MIST M102
Luminous Merger Between Two Star-forming Galaxies 1.7Gyr After the Big Bang

Speaker: Kate Pitchford (Texas A&M University)Host: Justin Spilker

The bulk of stellar and black hole mass buildup in galaxies occurs in the high-redshift Universe in short, intense bursts of star formation and black hole accretion. However, the exact role of these two processes in assembling galaxies, as well as how much they affect one another, remains unclear. It [...]
Early JWST Results on Distant Galaxies and the Lensed Star Earendel
September 19, 2022 11:30 am (CDT) MIST M102
Early JWST Results on Distant Galaxies and the Lensed Star Earendel

Speaker: Dan Coe (Space Telescope Science Institute)Host: Justin Spilker

JWST is beginning to transform our understanding of the early universe. Over 100 papers on the arXiv have analyzed JWST data of galaxies. Some early tantalizing results have been puzzling, including claims of disks at z > 4, extremely dusty galaxies out to z > 5, impossibly massive galaxies at [...]
Too Big to Fail? 6D Stellar Streams in the Milky Way and Cosmological Simulations
September 26, 2022 11:30 am – 12:30 pm (CDT) MIST M102
Too Big to Fail? 6D Stellar Streams in the Milky Way and Cosmological Simulations

Speaker: Nora Shipp (Massachusetts Institute of Technology)Host: Justin Spilker

Recent large photometric, astrometric, and spectroscopic surveys have enabled the first systematic observations of Milky Way stellar streams in 6D. At the same time, cutting edge cosmological simulations are now at resolutions that allow for the study of dwarf galaxy streams around Milky Way-like hosts. In this talk, I will present the [...]
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October 3, 2022 11:30 am – 12:30 pm (CDT) MIST M102
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Speaker: Ezequiel Treister (The Pontifical Catholic University of Chile)Host: Justin Spilker

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October 17, 2022 11:30 am – 12:30 pm (CDT) MIST M102
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Speaker: Megan Reiter (Rice University)Host: Grace Olivier

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October 24, 2022 11:30 am – 12:30 pm (CDT) MIST M102
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Speaker: Matthew Kerr (Naval Research Laboratory)Host: Justin Spilker

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October 31, 2022 11:30 am – 12:30 pm (CDT)
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Speaker: Sinclaire Manning (University of Massachusetts Amherst)Host: Justin Spilker

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November 14, 2022 11:30 am – 12:30 pm (CDT) MIST M102
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Speaker: Erika Holmbeck (Carnegie Observatories)Host: Justin Spilker

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November 21, 2022 11:30 am – 12:30 pm (CDT) MIST M102
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Speaker: Coral Wheeler (California State Polytechnic University, Pomona)Host: Justin Spilker

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December 5, 2022 11:30 am – 12:30 pm (CDT) MIST M102
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Speaker: Tom Holoien (Carnegie Observatories)Host: Justin Spilker

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