691 citations · 14.9k across the 240 of their papers we have counts for
6 papers · 2 filters
Kim 3: an Ultra-faint Star Cluster in the Constellation of Centaurus
Dongwon Kim, Helmut Jerjen, Dougal Mackey +2
We report the discovery of an ultra-faint star cluster in the constellation of Centaurus. This new stellar system, Kim 3, features a half light radius of $r_{h}=2.29^{+1.28}_{-0.52…
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. V. Constraints on Formation Scenarios
A. Renzini, F. D'Antona, S. Cassisi +16
We build on the evidence provided by our Legacy Survey of Galactic globular clusters (GC) to submit to a crucial test four scenarios currently entertained for the formation of mult…
Measuring the vertical age structure of the Galactic disc using asteroseismology and SAGA
L. Casagrande, V. Silva Aguirre, K. J. Schlesinger +10
The existence of a vertical age gradient in the Milky Way disc has been indirectly known for long. Here, we measure it directly for the first time with seismic ages, using red gian…
The Hubble Space Telescope UV Legacy Survey of galactic globular clusters. VI. The internal kinematics of the multiple stellar populations in NGC 2808
A. Bellini, E. Vesperini, G. Piotto +9
Numerous observational studies have revealed the ubiquitous presence of multiple stellar populations in globular clusters and cast many hard challenges for the study of the formati…
A Hero's Dark Horse: Discovery of an Ultra-Faint Milky Way Satellite in Pegasus
Dongwon Kim, Helmut Jerjen, Dougal Mackey +2
We report the discovery of an ultra-faint Milky Way satellite galaxy in the constellation of Pegasus. The concentration of stars was detected by applying our overdensity detection…
Discovery of a Faint Outer Halo Milky Way Star Cluster in the Southern Sky
Dongwon Kim, Helmut Jerjen, Antonino P. Milone +2
We report the discovery of a new, low luminosity star cluster in the outer halo of the Milky Way. High quality photometry is presented, from which a color-magnitude diagram is…