Week of Events
Sunday, March 8, 2026
No events on this day.
Monday, March 9, 2026
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Tuesday, March 10, 2026
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Wednesday, March 11, 2026
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Thursday, March 12, 2026
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Friday, March 13, 2026
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March 13, 2026 -CGCA Seminar – León Salas
CGCA Seminar – León Salas
Black Holes: Bridging Simulations and Observations
León Salas
University of Wisconsin-Milwaukee
In recent years, General Relativistic Magnetohydrodynamic (GRMHD) simulations, combined with multiwavelength observations have provided critical insights into the nature of radiation from accreting black holes. These simulations have revealed a particularly interesting magnetically arrested disk (MAD) regime whereby the accretion is choked by strong magnetic fields. The higher magnetic flux characteristic of the MAD regime leads to new dynamics, including interchange-type accretion modes and flux eruptions. Polarization measurements by the Event Horizon Telescope (EHT) from the supermassive black holes M87* and Sagittarius A* (Sgr A*) favor MAD states. However, nearly all MAD models exhibit greater 230 GHz flux variability than seen in historical observations of Sgr A*.
Saturday, March 14, 2026
No events on this day.