In the ΛCDM paradigm, the Galactic stellar halo is predicted to harbor the accreted debris of
smaller systems. To identify these systems, the H3 Spectroscopic Survey, combined with …

Modern theories of galaxy formation predict that the Galactic stellar halo was hierarchically
assembled from the accretion and disruption of smaller systems. This hierarchical assembly …

Galactic haloes in a Λ-CDM universe are predicted to host today a swarm of debris resulting
from cannibalized dwarf galaxies. The chemodynamical information recorded in their stellar …

The Galactic stellar halo is predicted to have formed at least partially from the tidal disruption
of accreted dwarf galaxies. This assembly history should be detectable in the orbital and …

Stellar halos may hold some of the best preserved fossils of the formation history of galaxies.
They are a natural product of the merging processes that probably take place during the …

Modern Galactic surveys have revealed an ancient merger that dominates the stellar halo of
our galaxy (Gaia–Sausage–Enceladus, GSE). Using chemical abundances and kinematics …

We have begun a survey of the structure of the Milky Way halo, as well as the halos of other
Local Group galaxies, as traced by their constituent giant stars. These giant stars are …

We present evidence for the contribution of high-mass globular clusters to the stellar halo of
the Galaxy. Using SDSS-II/SEGUE spectra of over 1900 G-and K-type halo giants, we …

Aims. We determine the mass distribution of stars, gas, and dark matter in M 33 to test
cosmological models of galaxy formation and evolution. Methods. We map the neutral …

We present and analyze the positions, distances, and radial velocities for over 4000 blue
horizontal-branch (BHB) stars in the Milky Way's halo, drawn from SDSS DR8. We search for …