87 citations · 303 across the 18 of their papers we have counts for
9 papers · 1 filter
Secular Attrition of Classical Bulges by Stellar Bars
Rachel Lee McClure, Tobias Géron, Elena D'Onghia +5
Classical bulges and stellar bars are common features in disk galaxies and serve as key tracers of galactic evolution. Angular momentum exchange at bar resonances drives secular mo…
Mapping the Milky Way in 5-D with 170 Million Stars
Joshua S. Speagle, Catherine Zucker, Ana Bonaca +18
We present "augustus", a catalog of distance, extinction, and stellar parameter estimates to 170 million stars from and with dr…
Rising from the Ashes II: The Bar-driven Abundance Bimodality of the Milky Way
Angus Beane, James Johnson, Vadim Semenov +3
The Milky Way hosts at least two modes in its present day distribution of Fe and alpha-elements. The exact cause of this bimodality is disputed, but one class of explanations invol…
The Impact of Classical Bulges on Stellar Bars and Box-Peanut-X-Features in Disk Galaxies
Rachel Lee McClure, Angus Beane, Elena D'Onghia +2
Galactic bars and their associated resonances play a significant role in shaping galaxy evolution. Resulting resonance-driven structures, like the vertically extended Boxy/Peanut X…
Rising from the Ashes: A Metallicity-Dependent Star Formation Gap Splits the Milky Way's alpha-Sequences
Angus Beane
The elemental abundance distribution of stars encodes the history of the gas-phase abundance in the Milky Way. Without a large, unbiased sample of highly precise stellar ages, the…
How Nested Bars Enhance, Modulate, and are Destroyed by Gas Inflows
Zhi Li, Min Du, Victor P. Debattista +7
Gas flows in the presence of two independently-rotating nested bars remain not fully understood, which is likely to play an important role in fueling the central black hole. We use…
Stellar Bars in Isolated Gas-Rich Spiral Galaxies Do Not Slow Down
Angus Beane, Lars Hernquist, Elena D'Onghia +6
Elongated bar-like features are ubiquitous in galaxies, occurring at the centers of approximately two-thirds of spiral disks in the nearby Universe. Due to gravitational interactio…
Characterizing the 3D Kinematics of Young Stars in the Radcliffe Wave
Alan J. Tu, Catherine Zucker, Joshua S. Speagle +5
We present an analysis of the kinematics of the Radcliffe Wave, a 2.7-kpc-long sinusoidal band of molecular clouds in the solar neighborhood recently detected via 3D dust mapping.…
The Implications of Local Fluctuations in the Galactic Midplane for Dynamical Analysis in the Gaia Era
Angus Beane, Robyn E. Sanderson, Melissa K. Ness +6
Orbital properties of stars, computed from their six-dimensional phase space measurements and an assumed Galactic potential, are used to understand the structure and evolution of t…