Topic: The buildup of the first dust at z>6
Abstract: A combination of JWST and ALMA observations have effectively set boundary conditions on when the Universe goes from dust free to absolutely full of dust. At z>12, UV slopes in the SEDs of galaxies are consistent with dust free solutions, while simple scaling relations demonstrate that these galaxies must grow into the ALMA detections at z~6 that show dust to stellar ratios comparable to the Milky Way. In this talk, I will develop a theoretical model for the buildup of the first dust in massive galaxies at z>6. I will place this model into observational context, and relate this, alongside degeneracies with star formation burstiness and nebular continuum emission, to the reddening of the UV slopes of the first galaxies.
