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  1. Reading the CARDs: The Imprint of Accretion History in the Chemical Abundances of the Milky Way's Stellar Halo

    Publication
    In the era of large-scale spectroscopic surveys in the Local Group, we can explore using chemical abundances of halo stars to study the star formation and chemical …

  2. Multiple phase spirals suggest multiple origins in Gaia DR3

    Publication
    Gaia Data Release 2 revealed that the Milky Way contains significant indications of departures from equilibrium in the form of asymmetric features in the phase space density of …

  3. Snails across Scales: Local and Global Phase-mixing Structures as Probes of the Past and Future Milky Way

    Publication
    Signatures of vertical disequilibrium have been observed across the Milky Way's (MW's) disk. These signatures manifest locally as unmixed phase spirals in z–vz space ("snails …

  4. Similarities behind the high- and low-α disc: small intrinsic abundance scatter and migrating stars

    Publication
    The detailed age-chemical abundance relations of stars measure time-dependent chemical evolution. These trends offer strong empirical constraints on nucleosynthetic processes, as well as the homogeneity of …

  5. The Hough Stream Spotter: A New Method for Detecting Linear Structure in Resolved Stars and Application to the Stellar Halo of M31

    Publication
    Stellar streams from globular clusters (GCs) offer constraints on the nature of dark matter and have been used to explore the dark matter halo structure and substructure of …

  6. Tracing Birth Properties of Stars with Abundance Clustering

    Publication
    To understand the formation and evolution of the Milky Way disk, we must connect its current properties to its past. We explore hydrodynamical cosmological simulations to investigate how …

  7. Migration and Mixing in the Galactic Disc from Encounters between Sagittarius and the Milky Way

    Publication
    Stars born on near-circular orbits in spiral galaxies can subsequently migrate to different orbits due to interactions with non-axisymmetric disturbances within the disc such as bars …

  8. The Clustering of Orbital Poles Induced by the LMC: Hints for the Origin of Planes of Satellites

    Publication
    A significant fraction of Milky Way (MW) satellites exhibit phase-space properties consistent with a coherent orbital plane. Using tailored N-body simulations of a spherical MW halo …

  9. Quantifying the Impact of the Large Magellanic Cloud on the Structure of the Milky Way's Dark Matter Halo Using Basis Function Expansions

    Publication
    Indications of disequilibrium throughout the Milky Way (MW) highlight the need for compact, flexible, non-parametric descriptions of phase–space distributions of galaxies. We present a new representation …

  10. Resolving local and global kinematic signatures of satellite mergers with billion particle simulations

    Publication
    In this work, we present two new ∼109 particle self-consistent simulations of the merger of a Sagittarius-like dwarf galaxy with a Milky Way (MW)-like disc …

  11. A Holistic Review of a Galactic Interaction

    Publication
    Our situation as occupants of the Milky Way (MW) Galaxy, bombarded by the Sagittarius dwarf galaxy, provides an intimate view of physical processes that can lead to the …

  12. 8 in 10 Stars in the Milky Way Bulge Experience Stellar Encounters Within 1000 AU in a Gigayear

    Publication
    The Galactic bulge is a tumultuous dense region of space, packed with stars separated by far smaller distances than those in the Solar neighborhood. A quantification of the …

  13. A dynamical systems description of privilege, power and leadership in academia

    Publication
    As the diversity of people in higher education grows, Universities are struggling to provide inclusive environments that nurture the spirit of free inquiry in the presence of these …

  14. In the Galactic disk, stellar [Fe/H] and age predict orbits and precise [X/Fe]

    Publication
    We explore the structure of the element abundance--age--orbit distribution of the stars in the Milky Way's low-α disk, by (re-)deriving precise [Fe/H …

  15. Detecting Thin Stellar Streams in External Galaxies: Resolved Stars & Integrated Light

    Publication

  16. Detecting Thin Stellar Streams in External Galaxies: Resolved Stars & Integrated Light

    Publication
    The morphology of thin stellar streams can be used to test the nature of dark matter. It is therefore crucial to extend searches for globular cluster streams to …

  17. The Galactic Midplane Is Not a Plane: Implications for Dynamical Analysis with Gaia Data and Beyond

    Publication
    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 the Galaxy …