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 …

Mean proper motions, space orbits, and velocity dispersion profiles of Galactic globular clusters derived from Gaia DR2 data

H Baumgardt, M Hilker, A Sollima… - Monthly Notices of the …, 2019 - academic.oup.com
We have derived the mean proper motions and space velocities of 154 Galactic globular
clusters and the velocity dispersion profiles of 141 globular clusters based on a combination …

Gaia Data Release 3-The Galaxy in your preferred colours: Synthetic photometry from Gaia low-resolution spectra

P Montegriffo, M Bellazzini, F De Angeli… - Astronomy & …, 2023 - aanda.org
Gaia Data Release 3 provides novel flux-calibrated low-resolution spectrophotometry for≃
220 million sources in the wavelength range 330 nm≤ λ≤ 1050 nm (XP spectra). Synthetic …

Photometry and astrometry with JWST – I. NIRCam point spread functions and the first JWST colour–magnitude diagrams of a globular cluster

D Nardiello, LR Bedin, A Burgasser… - Monthly Notices of …, 2022 - academic.oup.com
ABSTRACT As the James Webb Space Telescope (JWST) has become fully operational,
early release data are now available to begin building the tools and calibrations for …

A stellar census in globular clusters with MUSE: Binaries in NGC 3201

B Giesers, S Kamann, S Dreizler, TO Husser… - Astronomy & …, 2019 - aanda.org
We utilise multi-epoch MUSE spectroscopy to study binary stars in the core of the Galactic
globular cluster NGC 3201. Our sample consists of 3553 stars with 54 883 spectra in total …

The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. XXIII. Proper-motion Catalogs and Internal Kinematics

M Libralato, A Bellini, E Vesperini, G Piotto… - The Astrophysical …, 2022 - iopscience.iop.org
A number of studies based on the data collected by the Hubble Space Telescope (HST) GO-
13297 program" HST Legacy Survey of Galactic Globular Clusters: Shedding UV Light on …

Hubble Space Telescope survey of Magellanic Cloud star clusters-Photometry and astrometry of 113 clusters and early results

AP Milone, G Cordoni, AF Marino, F D'Antona… - Astronomy & …, 2023 - aanda.org
In the past few years, we have undertaken an extensive investigation of star clusters and
their stellar populations in the Large and Small Magellanic Clouds (LMC and SMC) based …

Constraining the original composition of the gas forming first-generation stars in globular clusters

MV Legnardi, AP Milone, L Armillotta… - Monthly Notices of …, 2022 - academic.oup.com
Disentangling distinct stellar populations along the red-giant branches (RGBs) of globular
clusters (GCs) is possible by using the pseudo-two-colour diagram dubbed chromosome …

Differential reddening in the direction of 56 Galactic globular clusters

MV Legnardi, AP Milone, G Cordoni… - Monthly Notices of …, 2023 - academic.oup.com
The presence of differential reddening in the direction of Galactic globular clusters (GCs)
has proven to be a serious limitation in the traditional colour–magnitude diagram (CMD) …

Photometry and astrometry with JWST – III. A NIRCam-Gaia DR3 analysis of the open cluster NGC 2506

D Nardiello, LR Bedin, M Griggio… - Monthly Notices of …, 2023 - academic.oup.com
In the third paper of this series aimed at developing the tools for analysing resolved stellar
populations using the cameras on board of the James Webb Space Telescope (JWST), we …