Abstract We present Dark Energy Spectroscopic Instrument (DESI) observations of the inner
halo of M31, which reveal the kinematics of a recent merger—a galactic immigration event …

Observational studies are finding stars believed to be relics of the earliest stages of
hierarchical mass assembly of the Milky Way (ie proto-galaxy). In this work, we contextualize …

We present detailed chemical abundance measurements for 45 globular clusters (GCs)
associated with galaxies in (and, in one case, beyond) the Local Group. The measurements …

Manganese abundances are sensitive probes of the progenitors of Type Ia supernovae
(SNe Ia). In this work, we present a catalog of manganese abundances in dwarf spheroidal …

We present deep spectroscopy from Keck/DEIMOS of Andromeda I, III, V, VII, and X, all of
which are dwarf spheroidal satellites of M31. The sample includes 256 spectroscopic …

The chemical abundances of a galaxy's metal-poor stellar population can be used to
investigate the earliest stages of its formation and chemical evolution. The Magellanic …

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 enrichment …

We present the first measurements of [Fe/H] and a Fe[] abundances, obtained using spectral
synthesis modeling, for red giant branch stars in M31ʼs giant stellar stream (GSS). The …

We measured [Fe/H] and [α/Fe] using spectral synthesis of low-resolution stellar
spectroscopy for 70 individual red-giant-branch stars across four fields spanning the outer …

The stellar halos of galaxies, primarily formed through the accretion and merger of smaller
objects, are an important tool for understanding the hierarchical mass assembly of galaxies …