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The evolution of the oxygen abundance radial gradient in the Milky Way Galaxy disk

  • Mercedes Mollá (a1), Oscar Cavichia (a2), Roberto D. D. Costa (a3), Walter J. Maciel (a3), Brad Gibson (a4) and Angeles I Díaz (a5) (a6)...

Abstract

We review the state of our chemical evolution models for spiral and low mass galaxies. We analyze the consequences of using different stellar yields, infall rate laws and star formation prescriptions in the time/redshift evolution of the radial distributions of abundances, and other quantities as star formation rate or gas densities, in the Milky Way Galaxy; In particular we will study the evolution of the oxygen abundance radial gradient analyzing its relation with the ratio SFR/infall. We also compare the results with our old chemical evolution models, cosmological simulations and with the existing data, mainly with the planetary nebulae abundances.

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The evolution of the oxygen abundance radial gradient in the Milky Way Galaxy disk

  • Mercedes Mollá (a1), Oscar Cavichia (a2), Roberto D. D. Costa (a3), Walter J. Maciel (a3), Brad Gibson (a4) and Angeles I Díaz (a5) (a6)...

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