2.5k citations · 25.3k across the 281 of their papers we have counts for
6 papers · 2 filters
Chemical evolution of the inner 2 degrees of the Milky Way bulge: [alpha/Fe] trends and metallicity gradients
N. Ryde, M. Schultheis, V. Grieco +3
The structure, formation, and evolution of the Milky Way bulge is a matter of debate. Important diagnostics for discriminating between bulge models include alpha-abundance trends w…
Triangulum II: a very metal-poor and dynamically hot stellar system
Nicolas F. Martin, Rodrigo A. Ibata, Michelle L. M. Collins +7
We present a study of the recently discovered compact stellar system Triangulum II. From observations conducted with the DEIMOS spectrograph on Keck II, we obtained spectra for 13…
Proper motions in Terzan 5: membership of the multi-iron sub-populations and first constrain to the orbit
Davide Massari, E. Dalessandro, F. R. Ferraro +6
By exploiting two sets of high-resolution images obtained with HST ACS/WFC over a baseline of ~10 years we have measured relative proper motions of ~70,000 stars in the stellar sys…
A Detection of Gas Associated with the M 31 Stellar Stream
Andreas Koch, Charles W. Danforth, R. Michael Rich +2
Detailed studies of stellar populations in the halos of the Milky Way and the Andromeda (M 31) galaxies have shown increasing numbers of tidal streams and dwarf galaxies, attesting…
Massive Stars in the W33 Giant Molecular Complex
Maria Messineo, J. Simon Clark, Donald F. Figer +9
Rich in HII regions, giant molecular clouds are natural laboratories to study massive stars and sequential star formation. The Galactic star forming complex W33 is located at l=~12…
Kinematics of the X-shaped Milky Way Bulge: Expectations from a Self-consistent N-body Model
Yujing Qin, Juntai Shen, Zhao-Yu Li +5
We explore the kinematics (both the radial velocity and the proper motion) of the vertical X-shaped feature in the Milky Way with an N-body bar/bulge model. From the solar perspect…