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http://hdl.handle.net/20.500.12386/24663
Titolo: | Coevolution of metallicity and star formation in galaxies to z ≃ 3.7 - I. A Fundamental Plane | Autori: | HUNT, Leslie Kipp Dayal, Pratika MAGRINI, LAURA Ferrara, Andrea |
Data pubblicazione: | 2016 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 463 | Fascicolo: | 2 | Da pagina:: | 2002 | Abstract: | With the aim of understanding the coevolution of star formation rate (SFR), stellar mass (M<SUB>*</SUB>), and oxygen abundance (O/H) in galaxies up to redshift z ≃ 3.7, we have compiled the largest available data set for studying Metallicity Evolution and Galaxy Assembly (MEGA); it comprises ∼1000 galaxies with a common O/H calibration and spans almost two orders of magnitude in metallicity, a factor of ∼10<SUP>6</SUP> in SFR, and a factor of ∼10<SUP>5</SUP> in stellar mass. From a principal component analysis, we find that the three-dimensional parameter space reduces to a Fundamental Plane in metallicity (FPZ) given by 12 + log (O/H) = -0.14 log (SFR) + 0.37 log (M<SUB>*</SUB>) + 4.82. The mean O/H FPZ residuals are small (0.16 dex) and consistent with trends found in smaller galaxy samples with more limited ranges in M<SUB>*</SUB>, SFR, and O/H. Importantly, the FPZ is found to be approximately redshift invariant within the uncertainties. In a companion paper, these results are interpreted with an updated version of the model presented by Dayal, Ferrara & Dunlop. | URI: | http://hdl.handle.net/20.500.12386/24663 | URL: | https://academic.oup.com/mnras/article/463/2/2002/2892244 | ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stw1993 | Bibcode ADS: | 2016MNRAS.463.2002H | Fulltext: | open |
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