activity
20222026
most citedHubble Space Telescope survey of Magellanic Cloud star clusters. Photometry and astrometry of 113 clusters and early results

66 citations · 302 across the 32 of their papers we have counts for

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Showing astro-ph.GAShow all

21 papers · 1 filter

astro-ph.GA2026

Tracing M22's origins: Spatial and chemical constraints on its formation history

Emanuele Dondoglio, Antonino P. Milone, Randa Asa'd +9

Globular clusters (GCs) are well known to host stellar populations characterized by light-element variations. A subset of Galactic GCs, beyond such 'canonical' populations, contain…

astro-ph.GA2026

EWOCS-IX: JWST/NIRCam observations of Westerlund 2 - Identification of candidate substellar members

V. Almendros-Abad, M. G. Guarcello, K. Muzic +26

[Abridged] Investigating substellar populations in young massive clusters offers crucial insights into the formation of brown dwarfs (BDs) and the role of environmental conditions…

astro-ph.GA2026

Multiple populations along the asymptotic giant branch: a Gaia+APOGEE study of 22 Galactic globular clusters

Emanuele Dondoglio, A. P. Milone, A. F. Marino +9

We present an investigation of multiple stellar populations along the asymptotic giant branch (AGB) in 22 globular clusters (GCs), exploiting APOGEE spectroscopy combined with AGB…

astro-ph.GA2026

Hubble Space Telescope survey of Magellanic Cloud star clusters. Binaries, mass functions, blue stragglers, and structural parameters

F. Muratore, M. V. Legnardi, A. P. Milone +7

Binary stars are key tracers of the dynamical evolution of star clusters and provide important constraints on stellar populations and mass functions. The Magellanic Clouds host clu…

astro-ph.GA2026

Globular Clusters in the Time of the JWST. I. Survey Design and First Results on Multiple Populations and Beyond

A. P. Milone, A. F. Marino, G. Cordoni +25

Globular clusters (GCs) host multiple stellar populations with distinct chemical compositions, but their properties among very low-mass stars remain poorly constrained. The James W…

astro-ph.GA2025★ 3 cited

Exploring the ultra-faint dwarf Bootes I using JWST and HST: Metallicity distribution and binaries

F. Muratore, M. V. Legnardi, A. P. Milone +8

Ultra-faint dwarf galaxies (UFDs) are among the oldest and most metal-poor stellar systems in the Universe. Their metallicity distribution encodes the fossil record of the earliest…

astro-ph.GA2025

Tracing ωCentauri's origins: Spatial and chemical signatures of its formation history

E. Dondoglio, A. P. Milone, A. F. Marino +8

ω}Centauri (ωCen) is the most enigmatic Galactic globular cluster (GC), with unmatched chemical complexity. We combine photometric and spectroscopic catalogs to identify its distin…

astro-ph.GA2025★ 3 cited

The Small Magellanic Cloud through the lens of the James Webb Space Telescope : binaries and mass function within the galaxy outskirts

M. V. Legnardi, F. Muratore, A. P. Milone +8

The stellar initial mass function (IMF) and the fraction of binary systems are fundamental ingredients that govern the formation and evolution of galaxies. Whether the IMF is unive…

astro-ph.GA2025★ 1 cited

A joint JWST and HST view of Omega Centauri: Multiple stellar populations and their kinematics

T. Ziliotto, A. P. Milone, G. Cordoni +5

We combine F115W and F277W images collected with the Near Infrared Camera of the James Webb Space Telescope (JWST) with multi-band, multi-epoch Hubble Space Telescope (HST) observa…

astro-ph.GA2025

Linking Photometry and spectroscopy: profiling multiple populations in globular clusters

E. Dondoglio, A. F. Marino, A. P. Milone +14

Our understanding of multiple populations in globular clusters (GCs) largely comes from photometry and spectroscopy: appropriate photometric diagrams can disentangle first and seco…

astro-ph.GA2025★ 9 cited

Exploring the formation environment of multiple stellar populations in Globular Clusters through binary systems

E. Bortolan, J. Bruce, A. P. Milone +9

Globular Clusters (GCs) are known to host distinct stellar populations, characterized by different chemical compositions. Despite extensive research, the origin of these population…

astro-ph.GA2025

New perspective on the multiple population phenomenon in Galactic globular clusters from a wide-field photometric survey

S. Jang, A. P. Milone, A. F. Marino +10

Wide-field photometry of Galactic globular clusters (GCs) has been investigated to overcome limitations from the small field of view of the Hubble Space Telescope in the study of m…

astro-ph.GA2025★ 3 cited

Exploring Multiple Stellar Populations in Globular Clusters with Euclid: A Theoretical Overview and Insights from NGC 6397

A. P. Milone, G. Cordoni, A. F. Marino +8

We investigate the behavior of multiple stellar populations in globular clusters (GCs) using photometric diagrams constructed with Euclid photometry. By employing synthetic spectra…

astro-ph.GA2024★ 10 cited

Energy equipartition in multiple-population globular clusters

A. R. Livernois, F. I. Aros, E. Vesperini +7

We present the results of Monte Carlo simulations aimed at exploring the evolution towards energy equipartition of first- (1G) and second-generation (2G) stars in multiple-populati…

astro-ph.GA2024★ 1 cited

Internal Dynamics of Multiple Populations in 28 Galactic Globular Clusters: A Wide-Field study with Gaia and the Hubble Space Telescope

Giacomo Cordoni, Luca Casagrande, Antonino Milone +11

We present a detailed analysis of the internal dynamics of multiple stellar populations (MPs) in 28 Galactic Globular Clusters (GCs) across a wide field of view, extending from the…

astro-ph.GA2024★ 2 cited

Exploring Simple-Population and Multiple-Population Globular Clusters in the Outer Galactic Halo using the Hubble Space Telescope

E. P. Lagioia, A. P. Milone, M. V. Legnardi +13

The pseudo two-color diagram, known as chromosome map (ChM), is a valuable tool for identifying globular clusters (GCs) that consist of single or multiple stellar populations (MPs)…

astro-ph.GA2024★ 6 cited

On the original composition of the gas forming first-generation stars in clusters: insights from HST and JWST

M. V. Legnardi, A. P. Milone, G. Cordoni +8

Globular cluster (GC) stars composed of pristine material (first-generation, 1G, stars) are not chemically homogeneous, as they exhibit extended sequences in the "Chromosome Map" (…

astro-ph.GA2023

The metallicity variations along the chromosome maps: The Globular Cluster 47 Tucanae

A. F. Marino, A. P. Milone, E. Dondoglio +11

The "chromosome maps" (ChMs) of globular clusters (GCs) have revealed that these ancient structures are not homogeneous in metallicity in various ways, and in different natures. Th…

astro-ph.GA2023

A deep dive into the Type II Globular Cluster NGC 1851

E. Dondoglio, A. P. Milone, A. F. Marino +13

About one-fifth of the Galactic globular clusters (GCs), dubbed Type II GCs, host distinct stellar populations with different heavy elements abundances. NGC 1851 is one of the most…

astro-ph.GA2023★ 7 cited

Multiple Stellar Populations outside the tidal radius of NGC1851 through Gaia DR3 XP Spectra

Giacomo Cordoni, Anna F. Marino, Antonino P. Milone +6

Ancient Galactic Globular Clusters (GCs) have long fascinated astronomers due to their intriguing multiple stellar populations characterized by variations in light-element abundanc…

astro-ph.GA2023★ 33 cited

Differential reddening in the direction of 56 Galactic globular clusters

M. V. Legnardi, A. P. Milone, G. Cordoni +6

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)…