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Circumstellar Dust Around AGB Stars and Implications for Infrared Emission from Galaxies
Alexa Villaume, Charlie Conroy, Benjamin Johnson
Stellar population synthesis (SPS) models are used to infer many galactic properties including star formation histories, metallicities, and stellar and dust masses. However, most S…
The Local Group as a time machine: studying the high-redshift Universe with nearby galaxies
Michael Boylan-Kolchin, Daniel R. Weisz, Benjamin D. Johnson +3
We infer the UV luminosities of Local Group galaxies at early cosmic times ( and ) by combining stellar population synthesis modeling with star formation histor…
The High-Mass Stellar Initial Mass Function in M31 Clusters
Daniel R. Weisz, L. Clifton Johnson, Daniel Foreman-Mackey +16
We have undertaken the largest systematic study of the high-mass stellar initial mass function (IMF) to date using the optical color-magnitude diagrams (CMDs) of 85 resolved, young…