preprintAstronomy and AstrophysicsMar 31, 2025DIAMOND OA

JADES: Differing assembly histories of galaxies

TJTobias J. LooserFDFrancesco D’EugenioRMR. MaiolinoSTSandro TacchellaMCMirko Curti
Indexed inarxivcrossrefdatacitedoaj

Abstract

We used deep NIRSpec spectroscopic data from the JADES survey to derive the star formation histories (SFHs) of a sample of 200 galaxies at 0.6 < z < 11 that span stellar masses from 10 6 to 10 9.5 M ⊙ . We found that galaxies at high redshift, galaxies above the main sequence (MS), and low-mass galaxies tend to host younger stellar populations than their lower-redshift, below the MS, and more massive counterparts. Interestingly, the correlation between age, stellar mass M * , and star formation rate (SFR) existed even earlier than cosmic noon, out to the earliest cosmic epochs. However, these trends have a large scatter. There are also examples of young stellar populations below the MS, which indicates…

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Topics & keywords

Topics
Keywords
  • Physics
  • Astrophysics
  • Galaxy
  • Redshift
  • Star formation
  • Stellar mass
  • Billion years
  • COSMIC cancer database
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