Aging of galaxies along the morphological sequence, marked by bulge growth and disk quenching

HIGHLIGHTS

SUMMARY

    The star formation rate (SFR) of a galaxy is linked to its morphology (Kennicutt 1998): elliptical and lenticular galaxies are generally quiescent and composed of old stars, whereas spiral galaxies show significant star formation in their disks, characterized by young stellar populations and HII regions delineating A170, page 1 of 24 their spiral arms. Studies based on bulge and disk decomposition of galaxies at redshifts from 0 to ~2.5 show the role of bulge growth (Lang et_al 2014; Bluck et_al 2014, 2022; Bremer et_al 2018; Dimauro et_al 2022) and disk reddening (Bremer et_al . . .

     

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