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Metallicity gradient of the thick disc progenitor at high redshift

Kawata, Daisuke; Prieto, Carlos Allende; Brook, Chris B.; Casagrande, Luca; Ciuca, Ioana; Gibson, Brad K.; Grand, Robert J. J.; Hayden, Michael R.; Hunt, Jason A. S.


We have developed a novel Markov Chain Monte Carlo chemical 'painting' technique to explore possible radial and vertical metallicity gradients for the thick disc progenitor. In our analysis, we match an N-body simulation to the data from the Apache Point Observatory Galactic Evolution Experiment survey.We assume that the thick disc has a constant scaleheight and has completed its formation at an early epoch, after which time radial mixing of its stars has taken place. Under these assumptions,...[Show more]

CollectionsANU Research Publications
Date published: 2017-09-25
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/MNRAS/STX2464
Access Rights: Open Access


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