The Mass-Metallicity relation in galaxies of different morphological types
F. Calura (1), A. Pipino (2), C. Chiappini (3,4), F. Matteucci (1,4),, R. Maiolino (5), N. Menci (5)- ((1) Univ. Trieste, Italy; (2) University of, Southern California, USA; (3) Obs. de Geneve, Switzerland; (4) INAF-Oss. di, Trieste, Italy; (5) INAF-Oss. di Roma, Italy)
TL;DR
This paper investigates how the mass-metallicity relation varies across galaxy types and redshifts using chemical evolution models, revealing that proto-ellipticals dominate the relation at high redshift and exploring hierarchical formation effects.
Contribution
It introduces chemical evolution models for different galaxy types to analyze the MZ relation and its evolution, including preliminary hierarchical formation insights.
Findings
Proto-ellipticals dominate the MZ relation at high redshift
The MZ relation varies with galaxy morphology and redshift
Preliminary hierarchical formation results suggest complex evolution patterns
Abstract
By means of chemical evolution models of different morphological types, we study the mass-metallicity (MZ) relation and its evolution with redshift. Our aim is to understand the role of galaxies of different morphological types in the MZ relation at various redshift. One major result is that at high redshift, the majority of the galaxies falling on the MZ plot are apparently proto-ellipticals. Finally, we show some preliminary results of a study of the MZ relation in a framework of hierarchical galaxy formation.
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