Measurements of the angular momentum–mass relations in the Simba simulation
Abstract
We present measurements of the specific angular momentum content (𝑗) of galaxies drawn from the Simba
cosmological hydrodynamic simulations. These relations are broadly consistent with a variety of
empirical measurements. We confirm the observational result that the scatter in the stellar 𝑗–𝑀 relation is
driven largely by H I content, and measure the dependence of its scatter on the deviations of galaxies from
other important scaling relations. For a given stellar mass, H i-rich/poor galaxies have more/less-than-average
stellar specific angular momentum.