Sub one per cent mass fractions of young stars in red massive galaxies

@article{SalvadorRusinol2020SubOP,
  title={Sub one per cent mass fractions of young stars in red massive galaxies},
  author={N. Salvador-Rusinol and A. Vazdekis and Francesco La Barbera and M. Beasley and I. Ferreras and A. Negri and Claudio Dalla Vecchia},
  journal={Nature Astronomy},
  year={2020},
  volume={4},
  pages={252-259}
}
  • N. Salvador-Rusinol, A. Vazdekis, +4 authors Claudio Dalla Vecchia
  • Published 2020
  • Physics
  • Nature Astronomy
  • Early-type galaxies are considered to be the end products of massive galaxy formation 1 . Optical spectroscopic studies reveal that massive early-type galaxies formed the bulk of their stars over short timescales ( $$\lesssim$$ ≲ 1 Gyr) and at high redshift ( z   $$\gtrsim$$ ≳  2), followed by passive evolution to the present 2 . However, their optical spectra are unable to constrain small episodes of recent star formation, since they are dominated by old stars. Fortunately, this problem can be… CONTINUE READING

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