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A peculiar faint satellite in the remote outer halo of M31

Mackey, Alasdair; Huxor, A; Martin, N F; Ferguson, A. M. N.; Dotter, Aaron; McConnachie, Alan W; Ibata, Rodrigo A; Irwin, M. J.; Lewis, Geraint Francis; Sakari, C M; Tanvir, Nial R; Venn, Kim


We present Hubble Space Telescope imaging of a newly discovered faint stellar system, PAndAS-48, in the outskirts of the M31 halo. Our photometry reveals this object to be comprised of an ancient and very metal-poor stellar population with age ≳ 10 Gyr

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Astrophysical Journal Letters
DOI: 10.1088/2041-8205/770/2/L17
Access Rights: Open Access


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