JADES: Insights on the low-mass end of the mass--metallicity--star-formation rate relation at $3 < z < 10$ from deep JWST/NIRSpec spectroscopy

Mirko Curti, Roberto Maiolino, Emma Curtis-Lake, Jacopo Chevallard, Stefano Carniani, Francesco D'Eugenio, Tobias J. Looser, Jan Scholtz, Stephane Charlot, Alex Cameron, Hannah Übler, Joris Witstok, Kristian Boyett, Isaac Laseter, Lester Sandles, Santiago Arribas, Andrew Bunker, Giovanna Giardino, Michael V. Maseda, Tim RawleBruno Rodríguez Del Pino, Renske Smit, Chris J. Willott, Daniel J. Eisenstein, Ryan Hausen, Benjamin Johnson, Marcia Rieke, Brant Robertson, Sandro Tacchella, Christina C. Williams, Christopher Willmer, William M. Baker, Rachana Bhatawdekar, Eiichi Egami, Jakob M. Helton, Zhiyuan Ji, Nimisha Kumari, Michele Perna, Irene Shivaei, Fengwu Sun

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Abstract

We analyse the gas-phase metallicity properties of a sample of low stellar mass (log M*/M_sun 6, with galaxies significantly less enriched (with a median offset in log(O/H) of ~ 0.5 dex, significant at ~ 5 sigma) than predicted given their M* and SFR. These observations are consistent with an enhanced stochasticity in the star-formation history, and/or with an increased efficiency in metal removals by outflows, prompting us to reconsider the nature of the relationship between M*, O/H, and SFR in the early Universe.
Original languageEnglish
JournalAstronomy & Astrophysics
Publication statusAccepted/In press - 16 Jan 2024

Keywords

  • astro-ph.GA

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