623 citations · 3k across the 51 of their papers we have counts for
9 papers · 1 filter
The masses of Local Group dwarf spheroidal galaxies: The death of the universal mass profile
Michelle L. M. Collins, Scott C. Chapman, R. M. Rich +12
We investigate the claim that all dwarf spheroidal galaxies (dSphs) reside within halos that share a common, universal mass profile as has been derived for dSphs of the Galaxy. By…
A kinematic study of the Andromeda dwarf spheroidal system
Michelle L. M. Collins, Scott C. Chapman, R. Michael Rich +12
We present a homogeneous kinematic analysis of red giant branch stars within 18 of the 28 Andromeda dwarf spheroidal (dSph) galaxies, obtained using the Keck I LRIS and Keck II DEI…
Threshing in Action - The tidal disruption of a dwarf galaxy by the Hydra I Cluster
Andreas Koch, Andreas Burkert, R. Michael Rich +4
We report on the discovery of strong tidal features around a dwarf spheroidal galaxy in the Hydra I galaxy cluster, indicating its ongoing tidal disruption. This very low surface b…
A tidally distorted dwarf galaxy near NGC 4449
R. M. Rich, M. L. M. Collins, C. M. Black +4
NGC 4449 is a nearby Magellanic irregular starburst galaxy with a B-band absolute magnitude of -18 and a prominent, massive, intermediate-age nucleus at a distance from Earth of 3.…
Andromeda and its satellites - a kinematic perspective
Michelle L. M. Collins, R. Michael Rich, Scott C. Chapman
Using spectroscopic data taken with Keck II DEIMOS by the Z-PAndAS team in the Andromeda-Triangulum region, I present a comparison of the disc and satellite systems of Andromeda wi…
The scatter about the "Universal" dwarf spheroidal mass profile: A kinematic study of the M31 satellites, And V and And VI
M. L. M. Collins, S. C. Chapman, R. M. Rich +9
While the satellites of the Milky Way (MW) have been shown to be largely consistent in terms of their mass contained within one half--light radius (M_{half}) with a "Universal" mas…