Astrophysics Seminar: Marla Geha: "The SAGA Survey: Exploring Satellite Galaxies Around 101 Milky Way-Analog Systems"

The Milky Way's satellite galaxies provide critical clues to how low mass galaxies form and the nature of dark matter.   Yet the Milky Way itself is a single realization of a Milky Way-mass galaxy halo.    I will present the main findings of the Satellites Around Galactic Analogs (SAGA) Survey, a spectroscopic survey characterizing satellite galaxies around Milky Way-mass galaxies.    The SAGA Survey includes 378 satellites identified across 101 systems.    I will discuss SAGA Survey results on the quenched fraction of satellites, luminosity functions, radial distributions, star-formation properties and more.

Speaker: Marla Geha, Professor, Yale University 

Host: Claude-Andre Faucher-Giguere

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