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Stellar ages and masses in the solar neighbourhood: Bayesian analysis using spectroscopy and Gaia DR1 parallaxes

Lin, Jinying (Jane); Dotter, Aaron; Ting, Yuan-Sen; Asplund, Martin

Description

We present a Bayesian implementation of isochrone fitting in deriving stellar ages and masses, incorporating absolute K magnitude (MK) derived from 2MASS photometry and Gaia DR1 parallax and differentiation between initial bulk metallicity and present-day surface metallicity, with allowance for incorporating further constraints (e.g. asteroseismology) when available. As a test, we re-computed stellar ages and masses of ∼4000 stars in the solar neighbourhood from six well-studied literature...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
URI: http://hdl.handle.net/1885/197329
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/sty709
Access Rights: Open Access

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