The Astrophysics and Cosmology Group

Black Holes


Uri Keshet

Stellar trajectories around SgA*, the central black hole of the Milky Way

Black holes play a dual role in physics, both as astronomical objects routinely discovered nowadays in binaries and in galactic centers, and as basic elements in quantum gravity. The presence of a supermassive black hole in the center of our own galaxy is evident from the trajectories of stars around a small region known as SgA* (see movie). We study black holes such as the one hiding in SgA*, and their dense stellar environment.

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