The Siena Galaxy Atlas (SGA-2020) delivers multicolor images and model fits for a diameter-limited sample of large galaxies in Legacy Survey imaging, which consists of deep grz optical imaging and unWISE W1-W4 mid-infrared imaging.
We gratefully acknowledge funding support for this work from the National Science Foundation under grants AST-1616414 and AST-1909374, and the U.S. Department of Energy, Office of Science, Office of High Energy Physics under Award Number DE-SC0020086.