NIRSpec View of the Appearance and Evolution of Balmer Breaks and the Transition from Bursty to Smooth Star Formation Histories from Deep Within the Epoch of Reionization to Cosmic Noon
Danial Langeroodi, Jens Hjorth
arXiv:2404.13045v1 Announce Type: new
Abstract: Theoretical models and observational evidence suggest that high-redshift galaxies grow under the bursty mode of star formation, with large temporal star formation rate (SFR) fluctuations around some mean value. From an observational perspective, it has not been clear at which redshift and stellar population characteristics the transition from bursty to smooth star formation occurs. Here, we investigate these using a uniformly reduced sample of NIRSpec prism spectra of 631 galaxies at $3 6$, suggesting that we might be observing the peak of star formation burstiness at these redshifts. The $z arXiv:2404.13045v1 Announce Type: new
Abstract: Theoretical models and observational evidence suggest that high-redshift galaxies grow under the bursty mode of star formation, with large temporal star formation rate (SFR) fluctuations around some mean value. From an observational perspective, it has not been clear at which redshift and stellar population characteristics the transition from bursty to smooth star formation occurs. Here, we investigate these using a uniformly reduced sample of NIRSpec prism spectra of 631 galaxies at $3 6$, suggesting that we might be observing the peak of star formation burstiness at these redshifts. The $z

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