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Galactic chemical evolution: Stellar yields and the initial mass function

Gavilań, Marta; Mollá, Mercedes; Cavichia, Oscar; Gavilán, Marta; Gibson, Brad K.

Authors

Marta Gavilań

Mercedes Mollá

Oscar Cavichia

Marta Gavilán

Abstract

We present a set of 144 Galactic chemical evolution models applied to a Milky Way analogue, computed using four sets of low+intermediate star nucleosynthetic yields, six massive star yield compilations, and six functional forms for the initial mass function. A comparison is made between a grid of multiphase chemical evolution models computed with these yield combinations and empirical data drawn from the Milky Way's disc, including the solar neighbourhood. By means of a χ2 methodology, applied to the results of these multiphase models, the best combination of stellar yields and initial mass function capable of reproducing these observations is identified.

Publication Date Aug 21, 2015
Journal Monthly notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Oxford University Press (OUP)
Peer Reviewed Peer Reviewed
Volume 451
Issue 4
Pages 3693-3708
Institution Citation Mollá, M., Cavichia, O., Gavilán, M., & Gibson, B. K. (2015). Galactic chemical evolution: Stellar yields and the initial mass function. Monthly notices, containing papers, abstracts of papers, and reports of the proceedings of the Society, 451(4), 3693-3708. https://doi.org/10.1093/mnras/stv1102
DOI https://doi.org/10.1093/mnras/stv1102
Keywords Stars: abundances, Stars: mass-loss, Galaxy: abundances, Galaxy: disc, Galaxy: evolution
Publisher URL http://mnras.oxfordjournals.org/content/451/4/3693
Copyright Statement © 2015 The Authors
Additional Information This article has been accepted for publication in Monthly notices of the Royal Astronomical Society ©: 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

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