The University of Arizona
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Plane Curves in the Sky

Mathematical Physics and Probability Seminar

Plane Curves in the Sky
Series: Mathematical Physics and Probability Seminar
Location: ONLINE
Presenter: Sam Gralla, University of Arizona

General relativity implies that images of black holes will contain narrow rings of light with a precisely predicted, nearly circular shape.  Motivated by the prospect of comparing (future) radio-interferometric observations with fundamental theory, we have studied the geometry of plane curves in terms of their interferometric observable, the "projected position function".  This has led to some fun connections with classical results and curves (Cauchy surface area theorem, Reuleaux triangle, Cartesian oval).

(https://utah.zoom.us/j/96895584107)