What is a globular cluster? An observational perspective

R Gratton, A Bragaglia, E Carretta, V D'Orazi… - The Astronomy and …, 2019 - Springer
Globular clusters are large and dense agglomerate of stars. At variance with smaller clusters
of stars, they exhibit signs of some chemical evolution. At least for this reason, they are …

Tracing the formation of the Milky Way through ultra metal-poor stars

F Sestito, N Longeard, NF Martin… - Monthly Notices of …, 2019 - academic.oup.com
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 …

Confronting fuzzy dark matter with the rotation curves of nearby dwarf irregular galaxies

A Bañares-Hernández, A Castillo, JM Camalich… - Astronomy & …, 2023 - aanda.org
Aims. In this paper, we carry out a phenomenological investigation of the viability of fuzzy
dark matter, which is composed of coherent waves of non-interacting ultralight axions with a …

The outer envelopes of globular clusters. II. NGC 1851, NGC 5824 and NGC 1261

PB Kuzma, GS Da Costa… - Monthly Notices of the …, 2018 - academic.oup.com
We present a second set of results from a wide-field photometric survey of the environs of
Milky Way globular clusters. The clusters studied are NGC 1261, NGC 1851 and NGC 5824 …

The outer halo globular cluster system of M31–III. Relationship to the stellar halo

AD Mackey, AMN Ferguson, AP Huxor… - Monthly Notices of …, 2019 - academic.oup.com
We utilize the final catalogue from the Pan-Andromeda Archaeological Survey to investigate
the links between the globular cluster system and field halo in M31 at projected radii R proj …

The tidal tails of Milky Way globular clusters

AE Piatti, JA Carballo-Bello - Astronomy & Astrophysics, 2020 - aanda.org
We report on the search for overall kinematical or structural conditions that have allowed
some Milky Way globular clusters to develop tidal tails. For this purpose, we built a …

Dynamics in the outskirts of four Milky Way globular clusters: it's the tides that dominate

Z Wan, AD Arnold, WH Oliver, GF Lewis… - Monthly Notices of …, 2023 - academic.oup.com
We present the results of a spectroscopic survey of the outskirts of four globular–1261, NGC
4590, NGC 1904, and NGC 1851–covering targets within 1° from the cluster centres, with …

Searching for the extra-tidal stars of globular clusters using high-dimensional analysis and a core particle spray code

SM Grondin, JJ Webb, NWC Leigh… - Monthly Notices of …, 2023 - academic.oup.com
Three-body interactions can eject stars from the core of a globular cluster, causing them to
enter the Galactic halo as extra-tidal stars. While finding extra-tidal stars is imperative for …

The outer envelopes of globular clusters–I. NGC 7089 (M2)

PB Kuzma, GS Da Costa, AD Mackey… - Monthly Notices of the …, 2016 - academic.oup.com
We present the results of a wide-field imaging survey of the periphery of the Milky Way
globular cluster NGC 7089 (M2). Data were obtained with MegaCam on the Magellan Clay …

The Dark Energy Survey view of the Sagittarius stream: discovery of two faint stellar system candidates

E Luque, A Pieres, B Santiago, B Yanny… - Monthly Notices of …, 2017 - academic.oup.com
We report the discovery of two new candidate stellar systems in the constellation of Cetus
using the data from the first two years of the Dark Energy Survey (DES). The objects, DES …