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Galactic cartography with SkyMapper - I. Population substructure and the stellar number density of the inner halo

Wan, Zhen; Kafle, P. R.; Lewis, Geraint; Mackey, Dougal; Sharma, Sanjib; Ibata, Rodrigo A.

Description

The stars within our Galactic halo presents a snapshot of its ongoing growth and evolution, probing galaxy formation directly. Here, we present our first analysis of the stellar halo from detailed maps of Blue Horizontal Branch (BHB) stars drawn from the SkyMapper Southern Sky Survey. To isolate candidate BHB stars from the overall population, we develop a machine-learning approach through the application of an Artificial Neural Network (ANN), resulting in a relatively pure sample of target...[Show more]

CollectionsANU Research Publications
Date published: 2018-07-18
Type: Journal article
URI: http://hdl.handle.net/1885/229991
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/sty1880
Access Rights: Open Access

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