181 citations · 1.1k across the 15 of their papers we have counts for
15 papers
The large-scale structure of the halo of the Andromeda galaxy II. Hierarchical structure in the Pan-Andromeda Archaeological Survey
Alan W. McConnachie, Rodrigo Ibata, Nicolas Martin +29
The Pan-Andromeda Archaeological Survey is a survey of square degrees centered on the Andromeda (M31) and Triangulum (M33) galaxies that has provided the most extensive pano…
Tracing the stellar component of low surface brightness Milky Way Dwarf Galaxies to their outskirts I: Sextans
L. Cicuendez, G. Battaglia, M. Irwin +12
We present results from deep and very spatially extended CTIO/DECam and photometry (reaching out to 2 mag below the oldest MSTO and covering 20 deg) aroun…
The PAndAS view of the Andromeda satellite system - II. Detailed properties of 23 M31 dwarf spheroidal galaxies
Nicolas F. Martin, Rodrigo A. Ibata, Geraint F. Lewis +15
We present a comprehensive analysis of the structural properties and luminosities of the 23 dwarf spheroidal galaxies that fall within the footprint of the Pan-Andromeda Archaeolog…
Major Substructure in the M31 Outer Halo: Distances and Metallicities along the Giant Stellar Stream
Anthony R. Conn, Brendan McMonigal, Nicholas F. Bate +9
We present a renewed look at M31's Giant Stellar Stream along with the nearby structures Stream C and Stream D, exploiting a new algorithm capable of fitting to the red giant branc…
NGC 147, NGC 185 and CassII: a genetic approach to orbital properties, star formation and tidal debris
Veronica Arias, Magda Guglielmo, Nuwanthika Fernando +9
NGC147, NGC185 and CassiopeiaII (CassII) have similar positions in the sky, distances and measured line of sight velocities. This proximity in phase space suggests that these three…
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…
Selecting Sagittarius: Identification and Chemical Characterization of the Sagittarius Stream
E. A. Hyde, S. Keller, D. B. Zucker +11
Wrapping around the Milky Way, the Sagittarius stream is the dominant substructure in the halo. Our statistical selection method has allowed us to identify 106 highly likely member…
Accretion in action: phase space coherence of stellar debris and globular clusters in Andromeda's South-West Cloud
Dougal Mackey, Geraint Lewis, Michelle Collins +13
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…
Sailing under the Magellanic Clouds: A DECam View of the Carina Dwarf
B. McMonigal, N. F. Bate, G. F. Lewis +7
We present deep optical photometry from the DECam imager on the 4m Blanco telescope of over 12 deg around the Carina dwarf spheroidal, with complete coverage out to 1 degree an…
The PAndAS Field of Streams: stellar structures in the Milky Way halo toward Andromeda and Triangulum
Nicolas F. Martin, Rodrigo A. Ibata, R. Michael Rich +16
We reveal the highly structured nature of the Milky Way stellar halo within the footprint of the PAndAS photometric survey from blue main sequence and main sequence turn-off stars.…
A thousand shadows of Andromeda: rotating planes of satellites in the Millennium-II cosmological simulation
Rodrigo A. Ibata, Neil G. Ibata, Geraint F. Lewis +5
In a recent contribution, Bahl \& Baumgardt investigated the incidence of planar alignments of satellite galaxies in the Millennium-II simulation, and concluded that vast thin plan…
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…
The Three-Dimensional Structure of the M31 Satellite System; Strong Evidence for an Inhomogeneous Distribution of Satellites
Anthony R. Conn, Geraint F. Lewis, Rodrigo A. Ibata +9
We undertake an investigation into the spatial structure of the M31 satellite system utilizing the distance distributions presented in a previous publication. These distances make…
A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude (Part II); Distances to the Satellites of M31
Anthony R. Conn, Rodrigo A. Ibata, Geraint F. Lewis +10
In `A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude (PART I),' a new technique was introduced for obtaining distances using the TRGB standard candle. Here we des…
A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude (Part I)
A. R. Conn, G. F. Lewis, R. A. Ibata +8
We present a new approach for identifying the Tip of the Red Giant Branch (TRGB) which, as we show, works robustly even on sparsely populated targets. Moreover, the approach is hig…