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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 710151.0, MPI für Astronomie / Publikationen_mpia
Accretion in action: phase space coherence of stellar debris and globular clusters in Andromeda's South-West Cloud*
Authors:Mackey, A. D.; Lewis, G. F.; Collins, M. L. M.; Bate, N. F.; Ibata, R. A.; Martin, N. F.; Chapman, S.; Conn, A.; Elahi, P.; Ferguson, A. M. N.; Huxor, A.; Irwin, M.; McConnachie, A.; McMonigal, B.; Peñarrubia, J.; Veljanoski, J.
Date of Publication (YYYY-MM-DD):2014
Title of Journal:Monthly Notices of the Royal Astronomical Society
Issue / Number:1
Start Page:L89
End Page:L93
Audience:Not Specified
Abstract / Description:A central tenet of the current cosmological paradigm is that galaxies grow over time through the accretion of smaller systems. Here, we present new kinematic measurements near the centre of one of the densest pronounced substructures, the South-West Cloud, in the outer halo of our nearest giant neighbour, the Andromeda galaxy. These observations reveal that the kinematic properties of this region of the South-West Cloud are consistent with those of PA-8, a globular cluster previously shown to be co-spatial with the stellar substructure. In this sense, the situation is reminiscent of the handful of globular clusters that sit near the heart of the Sagittarius dwarf galaxy, a system that is currently being accreted into the Milky Way, confirming that accretion deposits not only stars but also globular clusters into the haloes of large galaxies.
Free Keywords:galaxies: evolution; galaxies: haloes; galaxies: individual: M31; galaxies: kinematics and dynamics; galaxies: star clusters: general
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0035-8711 %R 10.1093/mnrasl/slu139
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