371 citations · 715 across the 5 of their papers we have counts for
7 papers
The Hercules stream as seen by APOGEE-2 South
Jason A. S. Hunt, Jo Bovy, Angeles Pérez-Villegas +15
The Hercules stream is a group of co-moving stars in the Solar neighbourhood, which can potentially be explained as a signature of either the outer Lindblad resonance (OLR) of a fa…
The Initial Mass Function of the Inner Galaxy Measured From OGLE-III Microlensing Timescales
Christopher Wegg, Ortwin Gerhard, Matthieu Portail
We use the timescale distribution of ~3000 microlensing events measured by the OGLE-III survey, together with accurate new made-to-measure dynamical models of the Galactic bulge/ba…
Gas dynamics in the Milky Way: a low pattern speed model
Zhi Li, Ortwin Gerhard, Juntai Shen +2
We present gas flow models for the Milky Way based on high-resolution grid-based hydrodynamical simulations. The basic galactic potential we use is from a N-body model constrained…
The Structure of the Milky Way's Bar Outside the Bulge
Christopher Wegg, Ortwin Gerhard, Matthieu Portail
While it is incontrovertible that the inner Galaxy contains a bar, its structure near the Galactic plane has remained uncertain, where extinction from intervening dust is greatest.…
Peanuts, brezels and bananas: food for thought on the orbital structure of the Galactic bulge
M. Portail, C. Wegg, O. Gerhard
Recent observations have discovered the presence of a Box/Peanut or X-shape structure in the Galactic bulge. Such Box/Peanut structures are common in external disc galaxies, and ar…
Made-to-Measure models of the Galactic Box/Peanut bulge: stellar and total mass in the bulge region
M. Portail, C. Wegg, O. Gerhard +1
We construct dynamical models of the Milky Way's Box/Peanut (B/P) bulge, using the recently measured 3D density of Red Clump Giants (RCGs) as well as kinematic data from the BRAVA…