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Article Dans Une Revue Monthly Notices of the Royal Astronomical Society Année : 2009

The evolution of the mass-metallicity relation in SDSS galaxies uncovered by astropaleontology

Résumé

We have obtained the mass-metallicity (M-Z) relation at different lookback times for the same set of galaxies from the Sloan Digital Sky Survey, using the stellar metallicities estimated with our spectral synthesis code STARLIGHT. We have found that this relation steepens and spans a wider range in both mass and metallicity at higher redshifts. We have modelled the time evolution of stellar metallicity with a closed-box chemical evolution model, for galaxies of different types and masses. Our results suggest that the M-Z relation for galaxies with present-day stellar masses down to 1010Msolar is mainly driven by the history of star formation and not by inflows or outflows.

Dates et versions

hal-03785287 , version 1 (23-09-2022)

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Natalia Vale Asari, Grazyna Stasinska, Roberto Cid Fernandes, Jean Michel Gomes, M. S. Schlickmann, et al.. The evolution of the mass-metallicity relation in SDSS galaxies uncovered by astropaleontology. Monthly Notices of the Royal Astronomical Society, 2009, 396, pp.L71-L75. ⟨10.1111/j.1745-3933.2009.00664.x⟩. ⟨hal-03785287⟩
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