Can I read Explaining the Scatter in the Galaxy Mass-metallicity Relation with Gas Flows on EtoBox?

Explaining the Scatter in the Galaxy Mass-metallicity Relation with Gas Flows by van Loon, Maria L.; Mitchell, Peter D.; Schaye, Joop is a scholarly article available to read on EtoBox.

What is Explaining the Scatter in the Galaxy Mass-metallicity Relation with Gas Flows about?

The physical origin of the scatter in the relation between galaxy stellar mass and the metallicity of the interstellar medium, i.e. the Mass-Metallicity Relation (MZR), reflects the relative importance of key processes in galaxy evolution. The \eagle cosmological hydrodynamical simulation is used to investigate the correlations between the residuals of the MZR and the residuals of the relations between stellar mass and, respectively, specific inflow, outflow and star formation rate as well as the gas fraction for central galaxies. At low redshift, all these residuals are found to be anti-correlated with the residuals of the MZR for $M_\star/\mathrm{M}_\odot \lesssim 10^{10}$. The correlations between the residuals of the MZR and the residuals of the other relations with mass are interrelated, but we find that gas fraction, specific inflow rate and specific outflow rate all have at least some independent influence on the scatter of the MZR. We find that, while for $M_\star/\mathrm{M}_\odot > 10^{10.4}$ the specific mass of the nuclear black hole is most important, for $M_\star/\mathrm{M}_\odot \lesssim 10^{10.3}$ gas fraction and specific inflow rate are the variables that correlate

Author

van Loon, Maria L.; Mitchell, Peter D.; Schaye, Joop

Published

2021

Language

EN