EVENTS

Low-mass low-metallicity (LMLZ) galaxies are central to a wide variety of astrophysics including the nature of dark matter, cosmic reionization, and understanding the origins of exotic transients. Our knowledge of LMLZ galaxies is primarily achnored in resolved star observations of Milky Way (MW) satellite galaxies. Here, I will describe several efforts to systematically expand the frontier of LMLZ galaxies beyond the MW halo. I will highlight new results from my ongoing HST Treasury survey of M31 satellite galaxies. I will preview new data from the JWST Early Release Science Program for Resolved Stellar Populations, which is laying the foundation for JWST studies of galaxies throughout the Local Volume. Finally, I will describe the Ultraviolet Explorer (UVEX) a MIDEX mission undergoing Phase A concept study that will enable a wide variety of science including uncovering and and characterizing millions of LMLZ galaxies within ~100 Mpc using UV imaging and spectroscopy.

Speaker: Dan Weisz (UC Berkeley)

All 2022 Fall Colloquium talks are held on Wednesday at 3:00 PM.  You may join the virtual colloquium at the links listed below. 

• Facebook Link: https://www.facebook.com/STScILiveScienceEvents
• Live Captioning Link: https://www.streamtext.net/player?event=STSI-ColloqiumSeries

Please direct questions or comments to contact above. The Fall Colloquium Committee members are: JHU Members: Kevin Schlaufman, Co-Chair, Ethan Vishniac, Arshia Jacob and STScI Members: Joel Green, Co-chair, Armin Rest, Co-chair and Andreea Petric.