Tracing the Evolution of Dust Mass Since Cosmic Noon with LMT/TolTEC

Galaxies at cosmic noon (z~2-3) have star formation rates up to 100 times higher and compact morphologies 3-10 times denser than galaxies in the local Universe, yet the fraction of star formation obscured by dust (f_obscured) appears surprisingly constant from 0.5<z<2.5. This lack of evolution in f_obscured can be attributed to some combination of evolution (or lack thereof) in dust mass, geometry, and composition. To unravel this mystery, we present a preliminary analysis measuring the dust masses of star-forming galaxies at 0.5<z<2.5 in the 3D-HST survey using millimeter observations from the LMT/TolTEC Ultra-Deep Galaxy Survey. We test our stacking analysis code on simulations to quantify source confusion limits as a function of depth. Together with the TolTEC survey data, these measurements will provide a statistical understanding of how dust mass evolves over cosmic time.