The evolution of the mass-metallicity relation in SDSS galaxies uncovered by astropaleontology
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
19/10/2012
19/10/2012
2009
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| Resumo |
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 10(10) M(circle dot) is mainly driven by the history of star formation and not by inflows or outflows. CNPq CAPES FAPESP France-Brazil CAPES-COFECUB program Observatoire de Paris |
| Identificador |
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, v.396, n.1, p.L71-L75, 2009 0035-8711 http://producao.usp.br/handle/BDPI/27185 10.1111/j.1745-3933.2009.00664.x |
| Idioma(s) |
eng |
| Publicador |
WILEY-BLACKWELL PUBLISHING, INC |
| Relação |
Monthly Notices of the Royal Astronomical Society |
| Direitos |
restrictedAccess Copyright WILEY-BLACKWELL PUBLISHING, INC |
| Palavras-Chave | #galaxies: evolution #galaxies: statistics #galaxies: stellar content #DIGITAL SKY SURVEY #STAR-FORMING GALAXIES #SEMIEMPIRICAL ANALYSIS #STELLAR #ORIGIN #AGES #GAS #Astronomy & Astrophysics |
| Tipo |
article original article publishedVersion |
