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Monday Science Seminar

November 7 @ 12:00 pm - 1:00 pm

Our in-person speaker will be Carrie Filion from Johns Hopkins University. Please see the title, abstract, and Zoom connection details for the seminar below.
You can either join us in person in the 4th floor conference room or through the zoom link provided below.
Title: “Ultra-Faint Dwarf Galaxies: Exploring Star and Galaxy Formation Long, Long Ago with Galaxies that are Not so Far Away”
Abstract: The ultra-faint dwarf (UFD) galaxy satellites of the Milky Way are ancient, low luminosity, metal-poor dark-matter dominated systems. They appear to be well-preserved fossil relics of star and galaxy formation in the early Universe, and thanks to their close proximity, we can obtain photometric, astrometric, and spectroscopic data for individual stars in many of these systems. With these data, we gain a unique vantage point from which we can explore questions about the early epochs of star and galaxy formation. In this talk, I will first discuss how we can identify the outermost extents of UFD galaxies, and what these outer regions can tell us about their dynamical states and total masses. I will then detail the mystery surrounding the low-mass end of the stellar populations of external galaxies, and explain how constraints from ultra-deep imaging of UFD galaxies can help to solve the mystery. Finally, I will conclude by highlighting some of the exciting science that future instruments and observatories will enable.
Zoom connection details:



November 7
12:00 pm - 1:00 pm
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4530 Sterling Hall
475 N Charter St
Madison, WI 53706 United States
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