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Galactic chemical evolution

Lee, Hyun Chul; Fenner, Yeshe; Kawata, Daisuke; Renda, Agostino; Fenner, Yeshe; Lee, Hyun Chul; Kawata, Daisuke; Renda, Agostino; Lee, Hyun Chul; Kawata, Daisuke; Renda, Agostino; Fenner, Yeshe; Mollá, Mercedes; Cavichia, Oscar; Costa, Roberto Dell’Aglio Dias da; Gibson, Brad K.; Díaz, Ángeles I.

Authors

Hyun Chul Lee

Yeshe Fenner

Daisuke Kawata

Agostino Renda

Yeshe Fenner

Hyun Chul Lee

Daisuke Kawata

Agostino Renda

Hyun Chul Lee

Daisuke Kawata

Agostino Renda

Yeshe Fenner

Mercedes Mollá

Oscar Cavichia

Roberto Dell’Aglio Dias da Costa

Ángeles I. Díaz



Abstract

We analyze the evolution of oxygen abundance radial gradients resulting from our chemical evolution models calculated with different prescriptions for the star formation rate (SFR) and for the gas infall rate, in order to assess their respective roles in shaping gradients. We also compare with cosmological simulations and confront all with recent observational datasets, in particular with abundances inferred from planetary nebulae. We demonstrate the critical importance in isolating the specific radial range over which a gradient is measured, in order for their temporal evolution to be useful indicators of disk growth with redshift.

Journal Highlights on Spanish astrophysics IX
Publisher Sociedad Española de Astronomía
Book Title Highlights of Spanish astrophysics IX
APA6 Citation Mollá, M., Cavichia, O., Costa, R. D. D. D., Gibson, B. K., & Díaz, Á. I. (in press). Galactic chemical evolution. In Highlights of Spanish astrophysics IXSociedad Española de Astronomía
Keywords Star formation
Publisher URL http://www.sea-astronomia.es/drupal/sites/default/files/archivos/proceedings12/plenarias
Related Public URLs https://www.sea-astronomia.es/publicaciones/proceeding
Copyright Statement ©2017 The authors

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