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 …

The Gaia-ESO Public Spectroscopic Survey: Implementation, data products, open cluster survey, science, and legacy

S Randich, G Gilmore, L Magrini, GG Sacco… - Astronomy & …, 2022 - aanda.org
Context. In the last 15 years different ground-based spectroscopic surveys have been
started (and completed) with the general aim of delivering stellar parameters and elemental …

A Gaia DR2 view of the open cluster population in the Milky Way

T Cantat-Gaudin, C Jordi, A Vallenari… - Astronomy & …, 2018 - aanda.org
Context. Open clusters are convenient probes of the structure and history of the Galactic
disk. They are also fundamental to stellar evolution studies. The second Gaia data release …

[HTML][HTML] Gaia Data Release 2. Observational Hertzsprung-Russell diagrams

G Collaboration, C Babusiaux… - Astronomy and …, 2018 - pure.mpg.de
Abstract Context. Gaia Data Release 2 provides high-precision astrometry and three-band
photometry for about 1.3 billion sources over the full sky. The precision, accuracy, and …

[HTML][HTML] Gaia data release 2-observational Hertzsprung-Russell diagrams

C Babusiaux, F Van Leeuwen, MA Barstow… - Astronomy & …, 2018 - aanda.org
Context. Gaia Data Release 2 provides high-precision astrometry and three-band
photometry for about 1.3 billion sources over the full sky. The precision, accuracy, and …

Clusters and mirages: cataloguing stellar aggregates in the Milky Way

T Cantat-Gaudin, F Anders - Astronomy & Astrophysics, 2020 - aanda.org
Context. Many of the open clusters listed in modern catalogues were initially reported by
visual astronomers as apparent overdensities of bright stars. As observational techniques …

Painting a portrait of the Galactic disc with its stellar clusters

T Cantat-Gaudin, F Anders, A Castro-Ginard… - Astronomy & …, 2020 - aanda.org
Context. The large astrometric and photometric survey performed by the Gaia mission allows
for a panoptic view of the Galactic disc and its stellar cluster population. Hundreds of stellar …

Newly detected open clusters in the Galactic disk using Gaia EDR3

CJ Hao, Y Xu, ZY Wu, ZH Lin, DJ Liu, YJ Li - Astronomy & Astrophysics, 2022 - aanda.org
The astrometric satellite Gaia recently released part of its third data set, which provides a
good opportunity to hunt for more open clusters in the Milky Way. In this work, we conduct a …

The Gaia-ESO survey: the non-universality of the age–chemical-clocks–metallicity relations in the Galactic disc

G Casali, L Spina, L Magrini, AI Karakas… - Astronomy & …, 2020 - aanda.org
Context. In the era of large spectroscopic surveys, massive databases of high-quality spectra
coupled with the products of the Gaia satellite provide tools to outline a new picture of our …

The Gaia–ESO Survey: Membership probabilities for stars in 63 open and 7 globular clusters from 3D kinematics

RJ Jackson, RD Jeffries, NJ Wright… - Monthly Notices of …, 2022 - academic.oup.com
Spectroscopy from the final internal data release of the Gaia–ESO Survey (GES) has been
combined with Gaia EDR3 to assign membership probabilities to targets observed towards …