641 citations · 2.8k across the 23 of their papers we have counts for
8 papers · 1 filter
The RAVE Survey: Constraining the Local Galactic Escape Speed
M. C. Smith, G. R. Ruchti, A. Helmi +20
We report new constraints on the local escape speed of our Galaxy. Our analysis is based on a sample of high velocity stars from the RAVE survey and two previously published datase…
Old and young bulges in late-type disk galaxies
C. M. Carollo, C. Scarlata, M. Stiavelli +2
ABRIDGED: We use HSTACS and NICMOS imaging to study the structure and colors of a sample of nine late-type spirals. We find: (1) A correlation between bulge and disks scale-lengths…
Complexity on Small Scales II: Metallicities and Ages in the Leo II Dwarf Spheroidal Galaxy
A. Koch, E. K. Grebel, J. T. Kleyna +5
We present metallicities and ages for 52 red giants in the remote Galactic dwarf spheroidal (dSph) galaxy Leo II. These stars cover the entire surface area of Leo II and are radial…
Observed Properties of Dark Matter: dynamical studies of dSph galaxies
G Gilmore, M Wilkinson, J Kleyna +4
The Milky Way satellite dwarf spheroidal (dSph) galaxies are the smallest dark matter dominated systems in the universe. We have underway dynamical studies of the dSph to quantify…
The Origin of the Bifurcation in the Sagittarius Stream
M. Fellhauer, V. Belokurov, N. W. Evans +9
The latest Sloan Digital Sky Survey data reveal a prominent bifurcation in the distribution of debris of the Sagittarius dwarf spheroidal (Sgr) beginning at a right ascension of ro…
An Orphan in the "Field of Streams"
V. Belokurov, N. W. Evans, M. J. Irwin +19
We use Sloan Digital Sky Survey Data Release 5 photometry and spectroscopy to study a tidal stream that extends over 50 degrees in the North Galactic Cap. From the analysis of the…