262 citations · 1.9k across the 44 of their papers we have counts for
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The AIMSS Project III: The Stellar Populations of Compact Stellar Systems
Joachim Janz, Mark A. Norris, Duncan A. Forbes +11
In recent years, a growing zoo of compact stellar systems (CSSs) have been found whose physical properties (mass, size, velocity dispersion) place them between classical globular c…
NGC 3628-UCD1: A possible Cen Analog Embedded in a Stellar Stream
Zachary G. Jennings, Aaron J. Romanowsky, Jean P. Brodie +6
Using Subaru/Suprime-Cam wide-field imaging and both Keck/ESI and LBT/MODS spectroscopy, we identify and characterize a compact star cluster, which we term NGC 3628-UCD1, embedded…
ECO and RESOLVE: Galaxy Disk Growth in Environmental Context
Amanda J. Moffett, Sheila J. Kannappan, Andreas A. Berlind +5
We study the relationships between galaxy environments and galaxy properties related to disk (re)growth, considering two highly complete samples that are approximately baryonic mas…
RESOLVE Survey Photometry and Volume-limited Calibration of the Photometric Gas Fractions Technique
Kathleen D. Eckert, Sheila J. Kannappan, David V. Stark +4
We present custom-processed UV, optical, and near-IR photometry for the RESOLVE survey, a volume-limited census of stellar, gas, and dynamical mass within two subvolumes of the nea…
Hiding in plain sight: record-breaking compact stellar systems in the Sloan Digital Sky Survey
Michael A. Sandoval, Richard P. Vo, Aaron J. Romanowsky +10
Motivated by the recent, serendipitous discovery of the densest known galaxy, M60-UCD1, we present two initial findings from a follow-up search, using the Sloan Digital Sky Survey,…
Understanding the central kinematics of globular clusters with simulated integrated-light IFU observations
Paolo Bianchini, Mark A. Norris, Glenn van de Ven +1
The detection of intermediate mass black holes in the centres of globular clusters is highly controversial, as complementary observational methods often deliver significantly diffe…
An Extended Star Formation History in an Ultra Compact Dwarf
Mark A. Norris, Carlos G. Escudero, Favio R. Faifer +3
There has been significant controversy over the mechanisms responsible for forming compact stellar systems like ultra compact dwarfs (UCDs), with suggestions that UCDs are simply t…
A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system
Vincenzo Pota, Jean P. Brodie, Terry Bridges +20
We present new wide-field photometry and spectroscopy of the globular clusters (GCs) around NGC 4649 (M60), the third brightest galaxy in the Virgo cluster. Imaging of NGC 4649 was…
How elevated is the dynamical-to-stellar mass ratio of the ultra-compact dwarf S999?
Joachim Janz, Duncan A. Forbes, Mark A. Norris +4
Here we present new Keck ESI high-resolution spectroscopy and deep archival HST/ACS imaging for S999, an ultra-compact dwarf in the vicinity of M87, which was claimed to have an ex…
Searching for intermediate mass black holes: understanding the data first
Paolo Bianchini, Mark Norris, Glenn van de Ven +1
The detection of intermediate mass black holes (IMBHs) in globular clusters has been hotly debated, with different observational methods delivering different outcomes for the same…