期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 434, 期 1, 页码 451-470出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stt1031
关键词
galaxies: abundances; galaxies: evolution; galaxies: fundamental parameters; galaxies: star formation; galaxies: statistics
资金
- STFC (UK)
- ARC (Australia)
- AAO
- Alfred P. Sloan Foundation
- National Science Foundation
- US Department of Energy
- National Aeronautics and Space Administration
- Japanese Monbukagakusho
- Max Planck Society
- Higher Education Funding Council for England
- ARC
- STFC [ST/I000976/1, ST/I505905/1, ST/K00090X/1, ST/I003088/1, ST/G001987/1, ST/J002291/1, ST/K000845/1, ST/K003577/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H00131X/1, ST/K003577/1, ST/J002291/1, ST/H008578/1, ST/K000845/1, ST/I505905/1, ST/K00090X/1, ST/G001987/1, ST/I003088/1, ST/I000976/1] Funding Source: researchfish
A 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 approximate to 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 similar to 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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