Globular cluster (GC) systems have now been studied in galaxies ranging from dwarfs to
giants and spanning the full Hubble sequence of morphological types. Imaging and …

The Milky Way's dwarf spheroidal satellites include the nearest, smallest and least luminous
galaxies known. They also exhibit the largest discrepancies between dynamical and …

We present a model for the concurrent formation of globular clusters (GCs) and
supermassive stars (SMSs,≳ 103 M⊙) to address the origin of the HeCNONaMgAl …

Abstract The Pan-Andromeda Archaeological Survey is a survey of> 400 square degrees
centered on the Andromeda (M31) and Triangulum (M33) galaxies that has provided the …

We present five new satellites of the Milky Way discovered in Sloan Digital Sky Survey
(SDSS) imaging data, four of which were followed up with either the Subaru or the Isaac …

We present a synthesis of recent photometric and kinematic data for several of the most dark
matter dominated galaxies, the dwarf spheroidal Galactic satellites, and compare them to …

We quantify the detectability of stellar Milky Way satellites in the Sloan Digital Sky Survey
(SDSS) Data Release 5. We show that the effective search volumes for the recently …

ABSTRACT A growing number of low luminosity and low surface brightness astronomical
objects challenge traditional notions of both galaxies and star clusters. To address this …

Using a variety of stellar tracers–blue horizontal branch stars, main-sequence turn-off stars
and red giants–we follow the path of the Sagittarius (Sgr) stream across the sky in Sloan …

We use Gaia DR2 astrometric and photometric data, published radial velocities and mesa
models to infer distances, orbits, surface gravities, and effective temperatures for all ultra …