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  1. Applying the Metallicity-dependent Binary Fraction to Double White Dwarf Formation: Implications for LISA

    Publication
    Short-period double white dwarf (DWD) binaries will be the most prolific source of gravitational waves (GWs) for the Laser Interferometer Space Antenna (LISA). DWDs with GW frequencies …

  2. Streams on FIRE: Populations of Detectable Stellar Streams in the Milky Way and FIRE

    Publication
    We present the first detailed study comparing the populations of stellar streams in cosmological simulations to observed Milky Way dwarf galaxy streams. In particular, we compare streams identified …

  3. 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 …

  4. On the stability of tidal streams in action space

    Publication
    In the Gaia era it is increasingly apparent that traditional static, parameterized models are insufficient to describe the mass distribution of our complex, dynamically evolving Milky Way (MW …

  5. The In Situ Origins of Dwarf Stellar Outskirts in FIRE-2

    Publication
    Extended, old, and round stellar halos appear to be ubiquitous around high-mass dwarf galaxies (108.5 < M⋆/M⊙ < 109.6) in the observed universe. However, it is …

  6. The relationship between age, metallicity, and abundances for disk stars in a simulated Milky Way galaxy

    Publication
    Observations of the Milky Way's low-α disk show that at fixed metallicity, [Fe/H], several element abundance, [X/Fe], correlate with age, with unique slopes and …

  7. The Galaxy Progenitors of Stellar Streams around Milky Way-mass Galaxies in the FIRE Cosmological Simulations

    Publication
    Stellar streams record the accretion history of their host galaxy. We present a set of simulated streams from disrupted dwarf galaxies in 13 cosmological simulations of Milky Way …

  8. Beyond Gaia: Asteroseismic Distances of M Giants Using Ground-based Transient Surveys

    Publication
    Evolved stars near the tip of the red giant branch (TRGB) show solar-like oscillations with periods spanning hours to months and amplitudes ranging from ∼1 mmag to …

  9. Cataloging Accreted Stars within Gaia DR2 using Deep Learning

    Publication
    The goal of this study is to present the development of a machine learning based approach that utilizes phase space alone to separate the Gaia DR2 stars into …

  10. Astrometry with the Wide-Field InfraRed Space Telescope

    Publication
    The Wide-Field Infrared Space Telescope (WFIRST) will be capable of delivering precise astrometry for faint sources over the enormous field of view of its main camera, the …

  11. 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 …

  12. Astrophysical Tests of Dark Matter with Maunakea Spectroscopic Explorer

    Publication
    We discuss how astrophysical observations with the Maunakea Spectroscopic Explorer (MSE), a high-multiplexity (about 4300 fibers), wide field-of-view (1.5 square degree), large telescope aperture …

  13. Astro2020 Science White Paper: Science at the edges: internal kinematics of globular clusters' external fields

    Publication
    The outer regions of globular clusters can enable us to answer many fundamental questions concerning issues ranging from the formation and evolution of clusters and their multiple stellar …