I will present the main findings of the third Data Release (DR3) of the Satellites Around Galactic Analogs (SAGA) Survey, a spectroscopic survey characterizing satellite galaxies around Milky Way (MW)-mass galaxies. SAGA DR3 includes 378 satellites identified across 101 MW-mass systems. I will discuss DR3 results on the quenched fraction of satellites, luminosity functions, radial distributions, star-formation properties and more. I will then consider the opportunities and challenges in extending this work in the Rubin/Roman era.

Speaker: Marla Geha (Yale University)

The 2024 Fall Colloquium talks are held on Wednesdays at 3:00 PM. This colloquium is hosted by STScI and will be held as an in-person and virtual event.

You may join in person at STScI’s John N. Bahcall Auditorium or virtually on STScI's Live Science Events Facebook page.

Please direct questions or comments to contact above. The 2024 Fall Colloquium Committee members are: Nestor Espinoza (STScI), Joel Green (STScI), Nick Indriolo (STScI), Elena Manjavacas (STScI), Namrata Roy (JHU), Kevin Schlaufman (JHU), Ethan Vishniac (JHU).