Past Event Category: Colloquium
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Nov 5Astronomy Colloquium: Sarah Millholland
4421 Sterling Hall
Institution: MIT Title: Migration, Tides, and the Diversity of Extrasolar Worlds Abstract: Many exoplanetary systems contain planets orbiting close to their host stars, with orbital periods of only days to weeks. These planets experience strong tidal forces that can reshape both their orbits and their interiors. Energy dissipation by time-dependent tidal deformations can drive orbital …
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Oct 29Astronomy Colloquium: Lewis McCallum
4421 Sterling Hall
Institution: Harvard-CfA Title: TBD Abstract: TBD Host: Bob Benjamin Tea and cookies begin at 3:15 PM. Zoom link found here.
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Oct 22Astronomy Colloquium: Stella Ocker
4421 Sterling Hall
Institution: Brinson Prize Postdoctoral Fellow, Caltech Title: Probing Cosmic Plasmas from Sub-AU to Gigaparsec Scales Abstract: Most of the ordinary matter in the universe takes the form of diffuse ionized gas, or plasma. Characterizing the full distribution of this plasma is critical to understanding how the universe forms its main structures. In this talk, I …
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Oct 15Astronomy Colloquium: Eric van Clepper
4421 Sterling Hall
Institution: WiCOR, UW–Madison Title: Modeling the Chemical and Dynamic Feedback Mechanisms of Planet Formation Abstract: Planets form in protoplanetary disks, inheriting the composition of the solids and gas present at their formation location. These PPDs, however, are constantly evolving, with dust growth, fragmentation, and pebble drift driving chemical evolution in the gas. While these effects …
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Oct 8Astronomy Colloquium: Julianne Dalcanton
4421 Sterling Hall
Institution: Director, Center for Computational Astrophysics/Flatiron Institute Title: Abstract: Host: Michael Maseda Tea and cookies begin at 3:15 PM. Zoom link found here.
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Oct 1Astronomy Colloquium: Daniel Proga
4421 Sterling Hall
Institution: University of Nevada-Las Vegas Title: Multiphase Supersonic Outflows in Active Galactic Nuclei Abstract: Large-scale mass outflows from Active Galactic Nuclei (AGN) naturally connect a galaxy to its central black hole and enable an AGN feedback mechanism. However, quantifying the feedback efficiency is challenging because it involves considering multidimensional fluid dynamics, radiative processes, magnetic processes, …
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Sep 24Astronomy Colloquium: Lia Medeiros
4421 Sterling Hall
Institution: UW-Milwaukee Title: Black Hole Images: What they’ve taught us so far and how we can improve them Abstract: Horizon-scale observations of accreting supermassive black holes with the Event Horizon Telescope (EHT) have opened a new window onto strong-field gravity and black-hole accretion. The EHT’s 2022 observations of Sagittarius A* (Sgr A), the black hole …
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Sep 17Astronomy Colloquium: Daniel Lin
4421 Sterling Hall
Institution: Jansky postdoctoral fellow, NRAO Title: Tracking the Grist and Flakes of Planetesimals with Dust Polarization Abstract: How planetesimals form and evolve in circumstellar disks is one of the most important questions in astrophysics. In this talk, I will demonstrate that polarization is a unique tool for studying the properties of dust grains throughout the …
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Sep 10Astronomy Colloquium: Show and Tell
4421 Sterling Hall
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Sep 3Astronomy Colloquium: Show and Tell
4421 Sterling Hall