170 citations · 1.1k across the 22 of their papers we have counts for
18 papers · 1 filter
Exploring the Galaxy's halo and very metal-weak thick disk with SkyMapper and Gaia DR2
G. Cordoni, G. S. Da Costa, D. Yong +16
In this work we combine spectroscopic information from the \textit{SkyMapper survey for Extremely Metal-Poor stars} and astrometry from Gaia DR2 to investigate the kinematics of a…
The outer halo globular cluster system of M31 - III. Relationship to the stellar halo
Dougal Mackey, Annette Ferguson, Avon Huxor +10
We utilise the final catalogue from the Pan-Andromeda Archaeological Survey to investigate the links between the globular cluster system and field halo in M31 at projected radii $R…
The Outer Envelopes of Globular Clusters. II. NGC 1851, NGC 5824 and NGC 1261
P. B. Kuzma, G. S. Da Costa, A. D. Mackey
We present a second set of results from a wide-field photometric survey of the environs of Milky Way globular clusters. The clusters studied are NGC 1261, NGC 1851 and NGC 5824: al…
The elusive stellar halo of the Triangulum Galaxy
B. McMonigal, G. F. Lewis, B. J. Brewer +7
The stellar halos of large galaxies represent a vital probe of the processes of galaxy evolution. They are the remnants of the initial bouts of star formation during the collapse o…
The Outer Envelopes of Globular Clusters. I. NGC 7089 (M2)
P. B. Kuzma, G. S. Da Costa, A. D. Mackey +1
We present the results of a wide-field imaging survey of the periphery of the Milky Way globular cluster NGC 7089 (M2). Data were obtained with MegaCam on the Magellan Clay Telesco…
Structural analysis of the Sextans dwarf spheroidal galaxy
T A Roderick, H Jerjen, G S Da Costa +1
We present wide-field and band stellar photometry of the Sextans dwarf spheroidal galaxy and its surrounding area out to four times its half-light radius (pc), b…
Substructure and Tidal Streams in the Andromeda Galaxy and its Satellites
Annette M. N. Ferguson, A. D. Mackey
Tidal streams from existing and destroyed satellite galaxies populate the outer regions of the Andromeda galaxy (M31). This inhomogeneous debris can be studied without many of the…
Major Substructure in the M31 Outer Halo: the East Cloud
B. McMonigal, N. F. Bate, A. R. Conn +8
We present the first detailed analysis of the East Cloud, a highly disrupted diffuse stellar substructure in the outer halo of M31. The core of the substructure lies at a projected…
A 10 kpc stellar substructure at the edge of the Large Magellanic Cloud: perturbed outer disk or evidence for tidal stripping?
Dougal Mackey, Sergey E. Koposov, Denis Erkal +3
We report the discovery of a substantial stellar overdensity in the periphery of the Large Magellanic Cloud (LMC), found using public imaging from the first year of the Dark Energy…
The Globular Cluster System of NGC 6822
J. Veljanoski, A. M. N. Ferguson, A. D. Mackey +11
We present a comprehensive analysis of the globular cluster (GC) system of the Local Group dwarf irregular galaxy NGC 6822. Our study is based on homogeneous optical and near-IR ph…
Stellar Substructures around the Hercules Dwarf Spheroidal Galaxy
T. A. Roderick, H. Jerjen, A. D. Mackey +1
We present deep -band DECam stellar photometry of the Hercules Milky Way satellite galaxy, and its surrounding field, out to a radial distance of 5.4 times the tidal radius. W…
The outer halo globular cluster system of M31 - I. The final PAndAS catalogue
A. P. Huxor, A. D. Mackey, A. M. N. Ferguson +8
We report the discovery of 59 globular clusters (GCs) and two candidate GCs in a search of the halo of M31, primarily via visual inspection of CHFT/MegaCam imagery from the Pan-And…
Major Substructure in the M31 Outer Halo: the South-West Cloud
N. F. Bate, A. R. Conn, B. McMonigal +11
We undertake the first detailed analysis of the stellar population and spatial properties of a diffuse substructure in the outer halo of M31. The South-West Cloud lies at a project…
Kinematics of Outer Halo Globular Clusters in M31
J. Veljanoski, A. M. N. Ferguson, A. D. Mackey +12
We present the first kinematic analysis of the far outer halo globular cluster (GC) population in the Local Group galaxy M31. Our sample contains 53 objects with projected radii of…
Young accreted globular clusters in the outer halo of M31
A. D. Mackey, A. P. Huxor, A. M. N. Ferguson +6
We report on Gemini/GMOS observations of two newly discovered globular clusters in the outskirts of M31. These objects, PAndAS-7 and PAndAS-8, lie at a galactocentric radius of ~87…
The structure of star clusters in the outer halo of M31
N. R. Tanvir, A. D. Mackey, A. M. N. Ferguson +11
We present a structural analysis of halo star clusters in M31 based on deep Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) imaging. The clusters in our sample span…
N-body Models of Extended Clusters
Jarrod R. Hurley, A. Dougal Mackey
We use direct N-body simulations to investigate the evolution of star clusters with large size-scales with the particular goal of understanding the so-called extended clusters obse…
Evidence for an accretion origin for the outer halo globular cluster system of M31
Dougal Mackey, Avon Huxor, Annette Ferguson +6
We use a sample of newly-discovered globular clusters from the Pan-Andromeda Archaeological Survey (PAndAS) in combination with previously-catalogued objects to map the spatial dis…