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Related papers: Interpreting the complex CMDs of the Magellanic Cl…

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This article compares the Ks magnitude distribution of Small Magellanic Cloud asymptotic giant branch stars obtained from the DENIS and 2MASS data with theoretical distributions. Theoretical Ks magnitude distributions have been constructed…

Astrophysics · Physics 2011-07-21 M. -R. L. Cioni , L. Girardi , P. Marigo , H. J. Habing

We report new photometry for the cluster NGC 2121 in the Large Magellanic Cloud, which shows a prominent hydrogen core exhaustion gap at the turnoff, and a descending subgiant branch remniscent of Galactic open clusters. We achieve an…

Astrophysics · Physics 2009-11-06 R. Michael Rich , Michael M. Shara , David Zurek

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

The multiple stellar populations (MPs) of $\sim$11-13 Gyr-old Globular Clusters (GCs) in our Galaxy are characterized by different content of several light elements. These elements describe well-defined patterns like the C-N and the Na-O…

Solar and Stellar Astrophysics · Physics 2018-12-11 E. P. Lagioia , A. P. Milone , A. F. Marino , A. Dotter

The projected distribution of stars in the Small Magellanic Cloud (SMC) from the Magellanic Clouds Photometric Survey is analysed. Stars of different ages are selected via criteria based on V magnitude and V-I colour, and the degree of…

Astrophysics · Physics 2011-07-21 M. Gieles , N. Bastian , B. Ercolano

We present the age distributions for star clusters and individual stars in the Small Magellanic Cloud (SMC) based on data from the Magellanic Clouds Photometric Survey by Zaritsky and collaborators. The age distribution of the SMC clusters…

Astrophysics · Physics 2011-02-11 Rupali Chandar , S. Michael Fall , Bradley C. Whitmore

The pace and pattern of star formation leading to rich young stellar clusters is quite uncertain. In this context, we analyze the spatial distribution of ages within 19 young (median t<3 Myr on the Siess et al. (2000) timescale),…

We use the Wide Field Camera 3 onboard the Hubble Space Telescope to obtain deep, high-resolution photometry of the young (~ 100 Myr) star cluster NGC1850 in the Large Magellanic Cloud. We analyze the cluster colour-magnitude diagram (CMD)…

Solar and Stellar Astrophysics · Physics 2017-01-18 Matteo Correnti , Paul Goudfrooij , Andrea Bellini , Jason S. Kalirai , Thomas H. Puzia

We leverage new high-quality data from Hubble Space Telescope program GO-14164 to explore the variation in horizontal branch morphology among globular clusters in the Large Magellanic Cloud (LMC). Our new observations lead to photometry…

Some of the most massive globular clusters of our Milky Way, such as for example omega-Centauri, show a mixture of stellar populations spanning a few Gyr in age and 1.5 dex in metallicities. In contrast, standard formation scenarios predict…

Astrophysics · Physics 2009-11-11 Mike Fellhauer , Pavel Kroupa , Wyn Evans

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…

Recent high-quality photometry of many star clusters in the Magellanic Clouds with ages of 1$\,-\,$2 Gyr revealed main sequence turnoffs (MSTOs) that are significantly wider than can be accounted for by a simple stellar population (SSP).…

Solar and Stellar Astrophysics · Physics 2015-06-24 Paul Goudfrooij , Leo Girardi , Philip Rosenfield , Alessandro Bressan , Paola Marigo , Matteo Correnti , Thomas H. Puzia

We present intermediate-resolution (R$\sim$1000) spectra in the $\sim$3500-10,000 A range of 14 globular clusters in the magellanic irregular galaxy NGC 4449 acquired with the Multi Object Double Spectrograph on the Large Binocular…

The early evolution of star clusters in the Small Magellanic Cloud (SMC) has been the subject of significant recent controversy, particularly regarding the importance and length of the earliest, largely mass-independent disruption phase…

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

We present a detailed view of cluster formation (CF) to trace the evolution and interaction history of the Magellanic Clouds (MCs) in the last 3.5 Gyr. Using the \textit{Gaia} DR3 data, we parameterized 1710 and 280 star clusters in the…

Astrophysics of Galaxies · Physics 2024-01-11 S. R. Dhanush , A. Subramaniam , Prasanta K. Nayak , S. Subramanian

We present deep Washington photometry of 45 poorly populated star cluster candidates in the Large Magellanic Cloud (LMC). We have performed a systematic study to estimate the parameters of the cluster candidates by matching theoretical…

Astrophysics of Galaxies · Physics 2015-06-23 Samyaday Choudhury , Annapurni Subramaniam , Andrés E. Piatti

We present a survey of 130 Galactic and extragalactic young massive clusters (YMCs, $10^4 < M/\msun < 10^8$, $10 < t/{\rm Myr} < 1000$) with integrated spectroscopy or resolved stellar photometry (40 presented here and 90 from the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 N. Bastian , I. Cabrera-Ziri , B. Davies , S. S. Larsen

We present ESO/VLT FORS2 low resolution spectroscopy of red giant branch stars in three massive, intermediate age ($\sim 1.7-2.3$ Gyr) star clusters in the Large Magellanic Cloud. We measure CH and CN index bands at 4300A, and 3883A, as…

Stars in star clusters are thought to form in a single burst from a common progenitor cloud of molecular gas. However, massive, old globular clusters -- with ages greater than 10 billion years and masses of several hundred thousand solar…

Astrophysics of Galaxies · Physics 2016-02-03 Chengyuan Li , Richard de Grijs , Licai Deng , Aaron M. Geller , Yu Xin , Yi Hu , Claude-Andre Faucher-Giguere

Their ubiquity and extreme densities make star clusters probes of prime importance of galaxy evolution. Old globular clusters keep imprints of the physical conditions of their assembly in the early Universe, and younger stellar objects,…

Astrophysics of Galaxies · Physics 2018-05-02 Florent Renaud