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Galactic chemical evolution

Mollá, Mercedes; Cavichia, Oscar; Costa, Roberto Dell’Aglio Dias da; Gibson, Brad K.; Díaz, Ángeles I.

Authors

Oscar Cavichia

Roberto Dell’Aglio Dias da Costa

Ángeles I. Díaz

Mercedes Mollá

Yeshe Fenner

Agostino Renda

Daisuke Kawata

Hyun Chul Lee

Yeshe Fenner

Agostino Renda

Daisuke Kawata

Hyun Chul Lee

Yeshe Fenner

Agostino Renda

Daisuke Kawata

Hyun Chul Lee

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 Article Type Conference Paper
Book Type Book Chapter
Journal Highlights on Spanish astrophysics IX
Print ISSN 1448-6083
Publisher Sociedad Española de Astronomía
Peer Reviewed Not Peer Reviewed
Volume 20
Issue 4
Pages 401-415
Book Title Highlights of Spanish astrophysics IX
ISBN 9788461789313
DOI https://doi.org/10.1071/AS03052
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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