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Mass-metallicity relation for local star-forming galaxies
Wu, YZ; Zhang SN(张双南); Zhang, SN; Zhao, YH; Zhang, W
AbstractWe investigate the evolution of the mass-metallicity (M-Z) relation with a large sample of 53 444 star-forming galaxies (SFGs) at 0.04 < z < 0.12, selected from the catalogue of Max-Planck-Institute for Astrophysics-John Hopkins University (MPA-JHU) emission-line measurements for the Sloan Digital Sky Survey Data Release 7. Regarding the sample of SFGs, we correct the observational bias and raise the aperture covering fractions to check the reliability of the metallicity evolution. (i) We show that the redshift evolution of the log (Ha) and log(([O III])) luminosities is displayed in our sample. (ii) We find the metallicity evolution of similar to 0.15 dex at log(M*/M-circle dot) similar to 9.3 in SFGs at 0.04 < z < 0.12. (iii) After applying the luminosity thresholds of log (L-H alpha) > 41.0 and log(L-[OIII]) > 39.7, we find that the metallicity evolution is shown well, and that the evolution of the star formation rate (SFR) is still shown well under the latter luminosity threshold, but the evolution is not observed under the former. (iv) The evolution of the M-Z relation seems to disappear at about log(M*/M-circle dot) > 10.0 after applying the luminosity threshold of log (LHa) > 41.0 or log(L-[O III]) > 39.7. (v) We find alpha = 0.09 and alpha = 0.07 in the equation, mu = logM* - alpha log(SFR), for log (L-H alpha) > 41.0 and log(L-[O III]) > 39.7 samples, respectively, and these imply that the evolution of theM-Z relation might have a weaker dependence on the SFR in our sample.
Keywordgalaxies: abundances galaxies: evolution galaxies: statistics
Indexed BySCI ; ADS
WOS IDWOS:000373583900048
ADS Bibcode2016MNRAS.457.2929W
ADS URLhttps://ui.adsabs.harvard.edu/abs/2016MNRAS.457.2929W
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2016MNRAS.457.2929W/citations
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Cited Times:12 [ADS]
Document Type期刊论文
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GB/T 7714
Wu, YZ,Zhang SN,Zhang, SN,et al. Mass-metallicity relation for local star-forming galaxies[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,457(3):2929-2935.
APA Wu, YZ,张双南,Zhang, SN,Zhao, YH,&Zhang, W.(2016).Mass-metallicity relation for local star-forming galaxies.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,457(3),2929-2935.
MLA Wu, YZ,et al."Mass-metallicity relation for local star-forming galaxies".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 457.3(2016):2929-2935.
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