Dan Weisz
U. Washington

Dissecting Galaxies One Star at a Time

The Hubble Space Telescope (HST) has revolutionized how we view galaxies. HST's powerful imaging capabilities have resolved individual stars in hundreds of nearby galaxies, enabling us to better understand how galaxies form and evolve, one star at a time. In this talk, I will highlight recent results from large HST surveys of galaxies in local universe including the ACS Nearby Galaxy Survey Treasury (ANGST) and the Panchromatic Hubble Andromeda Treasury (PHAT), which have cataloged multi-color observations of ~150 million resolved stars. I will specifically discuss how we are merging well-characterized stellar physics with these HST-based resolved star observations to measure star formation histories, investigate the stellar initial mass function, spatially map the dust content of galaxies, and study star-gas interactions, all fundamental to improving our understanding of galaxy evolution.