381 citations · 3.8k across the 83 of their papers we have counts for
9 papers · 1 filter
Untangling Magellanic Streams
Dennis Zaritsky, Vedant Chandra, Charlie Conroy +3
The Magellanic Stream (MS) has long been known to contain multiple H I strands and corresponding stellar populations are beginning to be discovered. Combining a sample of 17 stars…
: Hamiltonian Perturbation Theory for Stellar Streams in Flexible Potentials with Differentiable Simulations
Jacob Nibauer, Ana Bonaca, David N. Spergel +4
Stellar streams retain a memory of their gravitational interactions with small-scale perturbations. While perturbative models for streams have been formulated in action-angle coord…
The Milky Way Radial Metallicity Gradient as an Equilibrium Phenomenon: Why Old Stars are Metal-Rich
James W. Johnson, David H. Weinberg, Guillermo A. Blanc +12
Metallicities of both gas and stars decline toward large radii in spiral galaxies, a trend known as the radial metallicity gradient. We quantify the evolution of the metallicity gr…
The Rapid Formation of the Metal Poor Milky Way
Turner Woody, Charlie Conroy, Phillip Cargile +6
Our understanding of the assembly timeline of the Milky Way has been transforming along with the dramatic increase in astrometric and spectroscopic data available over the past sev…
Segue 2 Recently Collided with the Cetus-Palca Stream: New Opportunities to Constrain Dark Matter in an Ultra-Faint Dwarf
Hayden R. Foote, Gurtina Besla, Nicolás Garavito-Camargo +7
Stellar streams in the Milky Way are promising detectors of low-mass dark matter (DM) subhalos predicted by CDM. Passing subhalos induce perturbations in streams that indicate t…
Our Halo of Ice and Fire: Strong Kinematic Asymmetries in the Galactic Halo
Jiwon Jesse Han, Charlie Conroy, Dennis Zaritsky +4
The kinematics of the stellar halo hold important clues to the assembly history and mass distribution of the Galaxy. In this study, we map the kinematics of stars across the Galact…