The Contribution of In-situ and Ex-situ Star Formation in Early-Type Galaxies: MaNGA versus IllustrisTNG

Carlo Cannarozzo, Alexie Leauthaud, Grecco A. Oyarzún +6

We compare stellar mass surface density, metallicity, age, and line-of-sight velocity dispersion profiles in massive ($M_{\ast }\ge 10^{10.5}{\mathrm{M}}_{\odot }$) present-day early-type g…