Negative age gradients and flat [Fe/H] gradients in high-redshift quiescent galaxies from NIRSpec-MSA spectroscopy suggest cores formed and quenched earlier than outskirts.
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Clues to inside-out quenching in quiescent galaxies at $1.2\lesssim z\lesssim2.2$: Age, Fe-, and Mg-abundance gradients from JWST-SUSPENSE
Negative age gradients and flat [Fe/H] gradients in high-redshift quiescent galaxies from NIRSpec-MSA spectroscopy suggest cores formed and quenched earlier than outskirts.