230 citations · 348 across the 4 of their papers we have counts for
6 papers · 1 filter
The nucleus of the Sagittarius dSph galaxy and M54: a window on the process of galaxy nucleation
M. Bellazzini, R. A. Ibata, S. C. Chapman +6
We present the results of a thorough study of the nucleus of the Sgr dwarf spheroidal galaxy and of the bright globular cluster M54 that resides within the same nucleus (Sgr,N). We…
Kinematic and Chemical constraints on the formation of M31's inner and outer halo
A. Koch, R. M. Rich, D. B. Reitzel +8
The halo of M31 shows a wealth of substructures that are consistent with satellite accretion. Here we report on kinematic and abundance results from Keck/DEIMOS spectroscopy in the…
Strangers in the night: Discovery of a dwarf spheroidal galaxy on its first Local Group infall
S. C. Chapman, J. Penarrubia, R. Ibata +9
We present spectroscopic observations of the AndXII dwarf spheroidal galaxy using DEIMOS/Keck-II, showing it to be moving rapidly through the Local Group (-556 km/s heliocentric ve…
The tidal trail of NGC205?
A. McConnachie, M. Irwin, G. Lewis +4
Using data taken as part of the Isaac Newton Telescope Wide Field Camera (INT WFC) survey of M31, we have identified an arc-like overdensity of blue, presumably metal-poor, red gia…
Taking measure of the Andromeda halo: a kinematic analysis of the giant stream surrounding M31
R. Ibata, S. Chapman, A. M. N. Ferguson +3
We present a spectroscopic survey of the giant stellar stream found in the halo of the Andromeda galaxy. Taken with the DEIMOS multi-object spectrograph on the Keck2 telescope, the…
The Andromeda Stream
G. F. Lewis, R. A. Ibata, S. C. Chapman +4
The existence of a stream of tidally stripped stars from the Sagittarius Dwarf galaxy demonstrates that the Milky Way is still in the process of accreting mass. More recently, an e…