Galactic Chemical Evolution
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.
Cite
@article{arxiv.1611.09553,
title = {Galactic Chemical Evolution},
author = {M. Mollá and O. Cavichia and R. da Costa and B. K. Gibson and A. I. Díaz},
journal= {arXiv preprint arXiv:1611.09553},
year = {2016}
}
Comments
12 pages, 6 figures, to be published in Highlights on Spanish Astrophysics IX, Proceedings of the XII Scientific Meeting of the Spanish Astronomical Society held on July 18-22, 2016, in Bilbao, Spain. F. Figueras, A. S\'anchez-Lavega, S. P\'erez-Hoyos, A. Alonso, S. Arribas, C. Hern\'andez Monteagudo (eds.)