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We present a new study of the spatial distribution and ages of the star clusters in the Small Magellanic Cloud (SMC). To detect and estimate the ages of the star clusters we rely on the new fully-automated method developed by Bitsakis et…

We report results on the internal dynamical evolution of old star clusters located in the outer regions of the Small Magellanic Cloud (SMC). Because the SMC has been imprinted with evidence of tidal interaction with the Large Magellanic…

Astrophysics of Galaxies · Physics 2025-01-23 Andrés E. Piatti

Observations of rich LMC and SMC clusters reveal an increasing spread in core radius with age. This trend likely represents real physical evolution in these systems. Old Magellanic Cloud clusters appear either extended or compact. Similar…

Astrophysics · Physics 2007-05-23 A. D. Mackey , G. F. Gilmore

In the Large Magellanic Cloud (LMC), there have been very few clusters observed with ages between 4 and 11 Gyr. This phenomenon is sometimes referred to as the `LMC age gap'. We constructed a model of the cluster age distribution aimed at…

Astrophysics of Galaxies · Physics 2026-05-12 Jonathan H. Klos , Andrés E. Piatti

Globular star clusters that formed at the same cosmic time may have evolved rather differently from a dynamical point of view (because that evolution depends on the internal environment) through a variety of processes that tend…

We present an analysis of the spatial distribution of various stellar populations within the Large and Small Magellanic Clouds. We use optically selected stellar samples with mean ages between ~9 and ~1000 Myr, and existing stellar cluster…

Astrophysics · Physics 2015-12-24 N. Bastian , M. Gieles , B. Ercolano , R. Gutermuth

Recent studies have shown that the observed main-sequence turn-off (MSTO) in colour-magnitude diagrams of intermediate age (1-2 Gyr) clusters in the LMC are broader than would be nominally expected for a simple stellar population. This has…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Nate Bastian , Esteban Silva-Villa

Recent discoveries have put the picture of stellar clusters being simple stellar populations into question. In particular, the color-magnitude diagrams of intermediate age (1-2 Gyr) massive clusters in the Large Magellanic Cloud (LMC) show…

Astrophysics of Galaxies · Physics 2015-06-23 Florian Niederhofer , Michael Hilker , Nate Bastian , Esteban Silva-Villa

We model the dynamical interaction between the Small and Large Magellanic Clouds and their corresponding stellar cluster populations. Our goal is to explore whether the lack of old clusters ($\gtrsim 7$ Gyr) in the Small Magellanic Cloud…

Astrophysics of Galaxies · Physics 2015-06-16 Daniel D. Carpintero , Facundo A. Gómez , Andrés E. Piatti

We present an analysis of the spatial distribution of various stellar populations within the Large Magellanic Cloud. We combine mid-infrared selected young stellar objects, optically selected samples with mean ages between ~9 and ~1000 Myr,…

Astrophysics · Physics 2015-12-24 Nate Bastian , Mark Gieles , Barbara Ercolano , Rob Gutermuth

This study presents a comprehensive analysis of the youngest stellar clusters in the Large Magellanic Cloud (LMC), utilising a multi-wavelength approach. We analyse data spanning from infrared to ultraviolet wavelengths, with the goal of…

Astrophysics of Galaxies · Physics 2025-03-13 Ricardo Chávez , Rosa Amelia González-Lópezlira , Gustavo Bruzual

Whether or not the rich star cluster population in the Large Magellanic Cloud (LMC) is affected by significant disruption during the first few x 10^8 yr of its evolution is an open question and the subject of significant current debate.…

Astrophysics of Galaxies · Physics 2015-06-16 Richard de Grijs , Simon P. Goodwin , Peter Anders

We present age measurements for 195 star clusters in the Small Magellanic Cloud based on comparison of integrated colors measured from the Magellanic Clouds Photometric Survey with models of simple stellar populations. We find that the…

Astrophysics · Physics 2008-11-26 Marc Rafelski , Dennis Zaritsky

The characteristics of the cluster systems of the Magellanic Clouds, as inferred from integrated properties, are compared with those from individual cluster studies and from the field population. The agreement is generally satisfactory…

Astrophysics · Physics 2007-05-23 G. S. Da Costa

The evolution of star clusters in the Magellanic Clouds has been the subject of significant recent controversy, particularly regarding the importance and length of the earliest, largely mass-independent disruption phase (referred to as…

Astrophysics · Physics 2009-11-13 Richard de Grijs , Simon P. Goodwin

We present results of age determination based on the standard procedure of isochrone fitting for about 600 star clusters younger than about 1.2 Gyr from the central parts of the LMC. Comparison of age distributions of star clusters from the…

Astrophysics · Physics 2007-05-23 G. Pietrzynski , A. Udalski

Despite their close proximity, the complex interplay between the two Magellanic Clouds, the Milky Way, and the resulting tidal features, is still poorly understood. Recent studies have shown that the Large Magellanic Cloud (LMC) has a very…

The Magellanic Clouds host a large population of massive (> 10^4 Msun) star clusters with ages ranging from a few Myr to 12 Gyr. In nearly all cases, close inspection of their CMDs reveals features that deviate from expectations of a…

Astrophysics of Galaxies · Physics 2017-11-06 I. Cabrera-Ziri , S. Martocchia , K. Hollyhead , N. Bastian

The color-magnitude diagrams of many Magellanic Cloud clusters (with ages up to 2 billion years) display extended turnoff regions where the stars leave the main sequence, suggesting the presence of multiple stellar populations with ages…

Solar and Stellar Astrophysics · Physics 2017-07-26 Francesca D'Antona , Antonino P. Milone , Marco Tailo , Paolo Ventura , Enrico Vesperini , Marcella Di Criscienzo

Recent studies have shown that an extended main-sequence turn-off is a common feature among intermediate-age clusters (1--3 Gyr) in the Magellanic Clouds. Multiple-generation star formation and stellar rotation or interacting binaries have…

Astrophysics of Galaxies · Physics 2017-03-22 Bi-Qing For , Kenji Bekki
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