261 citations · 1.6k across the 18 of their papers we have counts for
18 papers
The Immitigable Nature of Assembly Bias: The Impact of Halo Definition on Assembly Bias
Antonia S. Villarreal, Andrew R. Zentner, Yao-Yuan Mao +6
Dark matter halo clustering depends not only on halo mass, but also on other properties such as concentration and shape. This phenomenon is known broadly as assembly bias. We explo…
The Sagittarius Impact on Light and Dark Structure in the Milky Way
Chris W. Purcell
It is increasingly apparent that common merger events play a large role in the evolution of disk galaxies at all cosmic times, from the wet accretion of gas-filled dwarf galaxies d…
Lyman-alpha Forest Constraints on Decaying Dark Matter
Mei-Yu Wang, Rupert A. C. Croft, Annika H. G. Peter +2
We present an analysis of high-resolution N-body simulations of decaying dark matter cosmologies focusing on the statistical properties of the transmitted Lyman-alpha forest flux i…
Bailing Out the Milky Way: Variation in the Properties of Massive Dwarfs Among Galaxy-Sized Systems
Chris W. Purcell, Andrew R. Zentner
Recent kinematical constraints on the internal densities of the Milky Way's dwarf satellites have revealed a discrepancy with the subhalo populations of simulated Galaxy-scale halo…
Vertical density waves in the Milky Way disc induced by the Sagittarius Dwarf Galaxy
Facundo A. Gómez, Ivan Minchev, Brian W. O'Shea +3
Recently, Widrow and collaborators announced the discovery of vertical density waves in the Milky Way disk. Here we investigate a scenario where these waves were induced by the Sag…
Outer-Disk Populations in NGC 7793: Evidence for Stellar Radial Migration
David J. Radburn-Smith, Rok Roskar, Victor P. Debattista +8
We analyzed the radial surface brightness profile of the spiral galaxy NGC 7793 using HST/ACS images from the GHOSTS survey and a new HST/WFC3 image across the disk break. We used…