| Stream Fanning and Bifurcations: Observing Fundamental Dynamics in Stellar Stream Morphology |
| Tomer Yavetz, Institute for Advanced Studies |
| Event Type: Astro Seminar |
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| Time: 2:00 PM - 3:00 PM |
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| Location: 726 Broadway, 940, CCPP Seminar |
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| Abstract: Non-spherical gravitational potentials host a subset of resonantly-trapped orbit families surrounding special, closed orbits. The transitions between these orbit families, or separatrices, mark abrupt discontinuities in the orbital structure of the potential. I will show how the morphology of stellar streams can be used to identify and locate these separatrices, and discuss a few examples of observed streams with peculiar morphologies that may indicate the existence of a nearby dynamical resonance. Link to the Event Video |