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Young accreted globular clusters in the outer halo of M31

Mackey, Alasdair; Huxor, A; Ferguson, A. M. N.; Irwin, M. J.; Veljanoski, J.; McConnachie, Alan W; Ibata, Rodrigo A; Lewis, Geraint Francis; Tanvir, Nial R

Description

We report on observations of two newly discovered globular clusters in the outskirts of M31 made using the Gemini Multi-Object Spectrograph (GMOS) instrument on Gemini North. These objects, PAndAS-7 (PA-7) and PAndAS-8 (PA-8), lie at a galactocentric radius of 87 kpc and are projected, with separation 19 kpc, on to a field halo substructure known as the South-West Cloud. We measure radial velocities for the two clusters which confirm that they are almost certainly physically associated with...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
URI: http://hdl.handle.net/1885/70889
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/sts336

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