Multiple stellar populations in globular clusters

N Bastian, C Lardo - Annual review of Astronomy and …, 2018 - annualreviews.org
Globular clusters (GCs) exhibit star-to-star variations in specific elements (eg, He, C, N, O,
Na, Al) that bear the hallmark of high-temperature H-burning. These abundance variations …

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 …

Accurate distances to Galactic globular clusters through a combination of Gaia EDR3, HST, and literature data

H Baumgardt, E Vasiliev - Monthly Notices of the Royal …, 2021 - academic.oup.com
We have derived accurate distances to Galactic globular clusters by combining data from the
Gaia Early Data Release 3 (EDR3) with distances based on Hubble Space Telescope (HST) …

Gaia data release 2-catalogue validation

F Arenou, X Luri, C Babusiaux, C Fabricius… - Astronomy & …, 2018 - aanda.org
Context. The second Gaia data release (DR2) contains very precise astrometric and
photometric properties for more than one billion sources, astrophysical parameters for …

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 …

A catalogue of masses, structural parameters, and velocity dispersion profiles of 112 Milky Way globular clusters

H Baumgardt, M Hilker - Monthly Notices of the Royal …, 2018 - academic.oup.com
We have determined masses, stellar mass functions, and structural parameters of 112 Milky
Way globular clusters by fitting a large set of N-body simulations to their velocity dispersion …

The Hubble Space Telescope UV Legacy Survey of Galactic globular clusters – IX. The Atlas of multiple stellar populations

AP Milone, G Piotto, A Renzini… - Monthly Notices of …, 2017 - academic.oup.com
We use high-precision photometry of red-giant-branch (RGB) stars in 57 Galactic globular
clusters (GCs), mostly from the 'Hubble Space Telescope (HST) UV Legacy Survey of …

Modeling dense star clusters in the milky way and beyond with the CMC cluster catalog

K Kremer, SY Claire, NZ Rui… - The Astrophysical …, 2020 - iopscience.iop.org
We present a set of 148 independent N-body simulations of globular clusters (GCs)
computed using the code CMC (Cluster Monte Carlo). At an age of∼ 10–13 Gyr, the …

An empirical model of the Gaia DR3 selection function

T Cantat-Gaudin, M Fouesneau, HW Rix… - Astronomy & …, 2023 - aanda.org
Interpreting and modelling astronomical catalogues requires an understanding of the
catalogues' completeness or selection function: what properties determine an object's …

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 …