92 citations · 918 across the 34 of their papers we have counts for
4 papers · 2 filters
Stream Fanning and Bifurcations: Observable Signatures of Resonances in Stellar Stream Morphology
Tomer D. Yavetz, Kathryn V. Johnston, Sarah Pearson +2
Recent observations have revealed a trove of unexpected morphological features in many of the Milky Way's stellar streams. Explanations for such features include time-dependent def…
New Velocity Measurements of NGC 5128 Globular Clusters out to 130 kpc: Outer Halo Kinematics, Substructure and Dynamics
A. K. Hughes, D. J. Sand, A. Seth +11
We present new radial velocity measurements from the Magellan and the Anglo-Australian Telescopes for 174 previously known and 122 newly confirmed globular clusters (GCs) around NG…
Dynamically constraining the length of the Milky Way bar
Madeline Lucey, Sarah Pearson, Jason A. S. Hunt +5
We present a novel method for constraining the length of the Galactic bar using 6D phase space information to directly integrate orbits. We define a pseudo-length for the Galactic…
Mapping Dark Matter with Extragalactic Stellar Streams: the Case of Centaurus A
Sarah Pearson, Adrian M. Price-Whelan, David W. Hogg +4
In the coming decade, thousands of stellar streams will be observed in the halos of external galaxies. What fundamental discoveries will we make about dark matter from these stream…