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Related papers: The Youngest Star Clusters in the Large Magellanic…

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In this work we study 35 stellar clusters in the Small Magellanic Cloud (SMC) in order to provide their mean metallicities and ages. We also provide mean metallicities of the fields surrounding the clusters. We used Str\"omgren photometry…

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

This is the second paper in our series about the search for multiple populations in Magellanic Cloud star clusters using the Hubble Space Telescope. Here we report the detection of multiple stellar populations in the colour-magnitude…

We examine the spatial distribution of star clusters in NGC 628 using the statistical tool INDICATE to quantify clustering tendencies. Our sample, based on HST and JWST observations, is the most complete to date, spanning ages from 1 Myr to…

We present a cluster analysis of the bright main-sequence and faint pre--main-sequence stellar populations of a field ~ 90 x 90 pc centered on the HII region NGC 346/N66 in the Small Magellanic Cloud, from imaging with HST/ACS. We extend…

Cosmology and Nongalactic Astrophysics · Physics 2012-08-03 Dimitrios A. Gouliermis , Stefan Schmeja , Volker Ossenkopf , Ralf S. Klessen , Andrew E. Dolphin

There has been growing evidence that the rich star clusters in the Magellanic Clouds contain significant fractions of rapidly rotating stars. In this work, we aim to constrain these fractions by studying the colour-magnitude diagrams of…

We present spectroscopy of individual stars in 26 Magellanic Cloud (MC) star clusters with the aim of estimating dynamical masses and $V$-band mass-to-light ($M/L_V$) ratios over a wide range in age and metallicity. We obtained 3137…

The age distribution of star clusters in nearby galaxies plays a crucial role in evaluating the lifetimes and disruption mechanisms of the clusters. Two very different results have been found recently for the age distribution chi(t) of…

Astrophysics of Galaxies · Physics 2010-04-15 Rupali Chandar , Bradley C. Whitmore , S. Michael Fall

Surface brightness profiles for 23 M31 star clusters were measured using images from the Wide Field Planetary Camera 2 on the Hubble Space Telescope, and fit to two types of models to determine the clusters' structural properties. The…

Astrophysics of Galaxies · Physics 2011-01-07 P. Barmby , S. Perina , M. Bellazzini , J. G. Cohen , P. W. Hodge , J. P. Huchra , M. Kissler-Patig , T. H. Puzia , J. Strader

One of the most unexpected results in the field of stellar populations of the last few years, is the discovery that some Magellanic-Cloud globular clusters younger than ~400 Myr, exhibit bimodal main sequences (MSs) in their color-magnitude…

Solar and Stellar Astrophysics · Physics 2017-01-11 A. P. Milone , A. F. Marino , F. D'Antona , L. R. Bedin , G. Piotto , H. Jerjen , J. Anderson , A. Dotter , M. Di Criscienzo , E. P. Lagioia

We combine archival images for the nearby galaxy M33 (Triangulum Galaxy) from the ultraviolet (UV) to the infrared (IR) to derive ages, masses, and extinctions for the young star cluster population, and compare our physical parameters with…

Astrophysics of Galaxies · Physics 2021-12-22 Caitlin Moeller , Daniela Calzetti

The spatial distribution of sources populating different regions of the colour-magnitude diagram (I-J, I) extracted from the DENIS catalogue towards the Magellanic Clouds (DCMC -- Cioni et al. 2000) reveal significantly different…

Astrophysics · Physics 2007-05-23 Maria-Rosa L. Cioni , Harm J. Habing , Frank P. Israel

Multiple stellar populations (MPs) representing star-to-star light-element abundance variations are common in nearly all ancient Galactic globular clusters. Here we provide the strongest evidence yet that the populous, ~ 1.7 Gyr-old Large…

Astrophysics of Galaxies · Physics 2022-03-14 Shalmalee Kapse , Richard de Grijs , Devika Kamath , Daniel B. Zucker

We present a study of the internal structure of 82 star clusters located at the outer regions of the Large Magellanic Cloud and the Small Magellanic Cloud using data of the VISCACHA Survey. Through the construction of the minimum spanning…

We present our analysis of archival Hubble Space Telescope Wide Field Planetary Camera 2 (WFPC2) observations in F450W (~B) and F555W (~V) of the intermediate- age populous star clusters NGC 121, NGC 339, NGC 361, NGC 416, and Kron 3 in the…

Astrophysics · Physics 2009-10-30 Kenneth J. Mighell , Ata Sarajedini , Rica S. French

We have used Washington photometry for 90 star cluster candidates of small angular size -typically ~ 11" in radius- distributed within nine selected regions in the inner disc of the Large Magellanic Cloud (LMC) to disentangle whether they…

Astrophysics of Galaxies · Physics 2015-06-19 Andres E. Piatti

We present a study correlating the spatial locations of young star clusters with those of molecular clouds in NGC~5194, in order to investigate the timescale over which clusters separate from their birth clouds. The star cluster catalogues…

The YMCA (Yes, Magellanic Clouds Again) and STEP ({The SMC in Time: Evolution of a Prototype interacting late-type dwarf galaxy) projects are deep g,i photometric surveys carried out with the VLT Survey Telescope (VST) and devoted to study…

Astrophysics of Galaxies · Physics 2020-11-11 M. Gatto , V. Ripepi , M. Bellazzini , M. Cignoni , M. -R. L. Cioni , M. Dall'Ora , G. Longo , M. Marconi , P. Schipani , M. Tosi

High spatial resolution imaging with the Hubble Space Telescope allowed us to resolve the compact HII, region N81 lying in the Small Magellanic Cloud (SMC). We show the presence of a tight cluster of newborn massive stars embedded in this…

Astrophysics · Physics 2007-05-23 M. Heydari-Malayeri , M. R. Rosa , H. Zinnecker , L. Deharveng , V. Charmandaris

A comparative analysis of Washington color-magnitude diagrams (CMDs) for 14 star clusters and respective surrounding fields in the Large Magellanic Cloud (LMC) outer disk is presented. Each CCD frame including field and respective cluster…

Astrophysics · Physics 2009-10-31 J. F. C. Santos , A. E. Piatti , J. J. Claria , E. Bica , D. Geisler , H. Dottori