2009/03/24 by N. Vale Asari, G. Stasinska, G. Stasińska +5 · 2 citations
Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy formation and evolution #Metallicity #Physics #Relation (database) #Stellar, planetary, and galactic studies #astro-ph.GA
paper · pdf · doi:10.1111/j.1745-3933.2009.00664.x
Accepted for publication in MNRAS
arxiv created 2009/03/24 · openalex publication_date 2009/04/21 · openalex created_date 2016/06/24 · arxiv updated 2019/08/15 · openalex updated_date 2026/08/05
Abstract 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 1010M⊙ is mainly driven by the history of star formation and not by inflows or outflows.