MNRAS-2013-Lara-López-451-70.pdf (16.74 MB)
Galaxy And Mass Assembly (GAMA): a deeper view of the mass, metallicity and SFR relationships
journal contribution
posted on 2023-06-08, 18:05 authored by M A Lara-Lopez, A M Hopkins, A R Lopez-Sanchez, S Brough, M L P Gunawardhana, M Colless, A S G Robotham, A E Bauer, J Bland-Hawthorn, M Cluver, S Driver, C Foster, L S Kelvin, J Liske, Jonathan LovedayJonathan Loveday, M S Owers, T J Ponman, R G Sharp, O Steele, E N Taylor, D ThomasA full appreciation of the role played by gas metallicity (Z), star formation rate (SFR) and stellar mass (M*) is fundamental to understanding how galaxies form and evolve. The connections between these three parameters at different redshifts significantly affect galaxy evolution, and thus provide important constraints for galaxy evolution models. Using data from the Sloan Digital Sky Survey–Data Release 7 (SDSS–DR7) and the Galaxy and Mass Assembly (GAMA) surveys, we study the relationships and dependences between SFR, Z and M*, as well as the Fundamental Plane for star-forming galaxies. We combine both surveys using volume-limited samples up to a redshift of z ˜ 0.36. The GAMA and SDSS surveys complement each other when analysing the relationships between SFR, M* and Z. We present evidence for SFR and metallicity evolution to z ~ 0.2. We study the dependences between SFR, M*, Z and specific SFR (SSFR) on the M*–Z, M*–SFR, M*–SSFR, Z–SFR and Z–SSFR relations, finding strong correlations between all. Based on those dependences, we propose a simple model that allows us to explain the different behaviour observed between low- and high-mass galaxies. Finally, our analysis allows us to confirm the existence of a Fundamental Plane, for which M* = f(Z, SFR) in star-forming galaxies.
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Publication status
- Published
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- Published version
Journal
Monthly Notices of the Royal Astronomical SocietyISSN
0035-8711Publisher
Oxford University PressExternal DOI
Issue
1Volume
434Page range
451-470Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2014-08-13First Open Access (FOA) Date
2014-08-13First Compliant Deposit (FCD) Date
2014-08-13Usage metrics
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