The Mass-Metallicity relation in galaxies of different morphological types

arxiv: 0904.2202 · v1 · pith:GTN6UQ3Qnew · submitted 2009-04-14 · 🌌 astro-ph.CO

The Mass-Metallicity relation in galaxies of different morphological types

F. Calura (1) , A. Pipino (2) , C. Chiappini (3 , 4) , F. Matteucci (1 , R. Maiolino (5) , N. Menci (5)- ((1) Univ. Trieste , Italy; (2) University of Southern California

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USA; (3) Obs. de Geneve Switzerland; (4) INAF-Oss. di Trieste Italy; (5) INAF-Oss. di Roma Italy)

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keywords relationdifferentgalaxiesmorphologicalredshifttypesevolutionmass-metallicity

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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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The Mass-Metallicity relation in galaxies of different morphological types

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