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

Published online by Cambridge University Press:  08 August 2017

Mercedes Mollá
Affiliation:
CIEMAT, Avda. Complutense 40, 28040 Madrid, Spain email: [email protected]
Oscar Cavichia
Affiliation:
Instituto de Física e Química, Universidade Federal de Itajubá, Av. BPS, 1303, 37500-903, Itajubá-MG, Brazil
Roberto D. D. Costa
Affiliation:
Instituto de Astronomia, Geofisica e Ciências Atmosféricas, Universidade de Sâo Paulo, 05508-900, Sâo Paulo-SP, Brazil
Walter J. Maciel
Affiliation:
Instituto de Astronomia, Geofisica e Ciências Atmosféricas, Universidade de Sâo Paulo, 05508-900, Sâo Paulo-SP, Brazil
Brad Gibson
Affiliation:
E.A Milne Centre for Astrophysics, University of Hull, HU6 7RX, United Kingdom
Angeles I Díaz
Affiliation:
Universidad Autónoma de Madrid, 28049, Madrid, Spain Astro-UAM, Unidad Asociada CSIC, Universidad Autónoma de Madrid,28049, Madrid, Spain
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Abstract

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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.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2017 

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