Galactic chemical evolution: Stellar yields and the initial mass function

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

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.

Citation

Mollá, M., Cavichia, O., Gavilán, M., & Gibson, B. K. (2015). Galactic chemical evolution: Stellar yields and the initial mass function. Monthly notices of the Royal Astronomical Society, 451(4), 3693-3708. https://doi.org/10.1093/mnras/stv1102

• Acceptance Date: May 13, 2015
• Online Publication Date: Jun 29, 2015
• Publication Date: Aug 21, 2015
• Deposit Date: Nov 11, 2015
• Publicly Available Date: Nov 23, 2017
• Journal: Monthly notices of the Royal Astronomical Society
• Print ISSN: 0035-8711
• Electronic ISSN: 1365-2966
• Publisher: Oxford University Press
• Peer Reviewed: Peer Reviewed
• Volume: 451
• Issue: 4
• Pages: 3693-3708
• DOI: https://doi.org/10.1093/mnras/stv1102
• Keywords: Stars: abundances; Stars: mass-loss; Galaxy: abundances; Galaxy: disc; Galaxy: evolution
• Public URL: https://hull-repository.worktribe.com/output/381098
• Publisher URL: http://mnras.oxfordjournals.org/content/451/4/3693
• 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.
• Contract Date: Nov 23, 2017