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Related papers: Tight LMC massive star clusters R 127 and R 128

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Massive clusters are more often found in actively star forming galaxies than in quiescent ones, similar to the Milky Way. We have carried out an extensive survey of obscured Milky Way clusters to determine whether our Galaxy is still…

Astrophysics · Physics 2009-11-11 J. Borissova , V. D. Ivanov , D. Minniti , D. Geisler

The giant HII region W31 hosts the populous star cluster W31-CL and others projected on or in the surroundings. The most intriguing object is the stellar cluster SGR1806-20, which appears to be related to a Luminous Blue Variable (LBV) - a…

Solar and Stellar Astrophysics · Physics 2020-01-08 Marina Bianchin , Eliade F. Lima , Eduardo Bica , Rogemar A. Riffel , Charles Bonatto , Roberto K. Saito

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

We present FORS2@VLT follow-up photometry of YMCA-1, a recently discovered stellar system located 13\degr~from the Large Magellanic Cloud (LMC) center. The deep color-magnitude diagram (CMD) reveals a well-defined main sequence (MS) and a…

We report new photometry of populous intermediate-age clusters in the SMC using the {\sl Hubble Space Telescope}. In contrast to the accepted picture, these clusters appear to have formed in two brief intervals, one $8\pm 2$ Gyr ago, and a…

Astrophysics · Physics 2009-10-31 R. Michael Rich , Michael Shara , S. Michael Fall , David Zurek

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…

In this study, we report conclusive evidence for an ancient star cluster that has been accreted by the Large Magellanic Cloud (LMC). By leveraging observations from the Hubble Space Telescope (HST), we investigate the chrono-dynamical…

At the distance of NGC 5128 (3.6 \pm 0.2 Mpc) it is possible to resolve globular clusters with high resolution imaging from the ground, thus allowing the globular cluster candidate selection primarily through their morphological properties.…

Astrophysics · Physics 2009-11-06 Marina Rejkuba

We have used deep ACS/WFC images of M33 to check nature of extended objects detected by the ground based survey of Zloczewski et al. (2008). A total of 24 candidates turned out to be genuine compact stellar clusters. In addition we detected…

Solar and Stellar Astrophysics · Physics 2009-03-24 K. Zloczewski , J. Kaluzny

We studied in detail the binary cluster candidates SL 538 and NGC 2006 in the Large Magellanic Cloud (LMC). This cluster pair is located in the northwestern part of the large OB association LH 77 in supergiant shell LMC 4. A third star…

Astrophysics · Physics 2007-05-23 Andrea Dieball , Eva K. Grebel

We have undertaken a detailed analysis of HST/WFPC2 and STIS imaging observations, and of supplementary wide-field ground-based observations obtained with the NTT of two young ~10-25 Myr) compact star clusters in the LMC, NGC 1805 and NGC…

Astrophysics · Physics 2009-11-07 R. de Grijs , R. A. Johnson , G. F. Gilmore , C. M. Frayn

[Abridged]: We present a database of structural and dynamical properties for 153 spatially resolved star clusters (50 "young massive clusters" and 103 old globulars) in the Milky Way, the Large and Small Magellanic Clouds, and the Fornax…

Astrophysics · Physics 2010-04-06 Dean E. McLaughlin , Roeland P. van der Marel

We present deep J,H,Ks photometry and accurate Color Magnitude Diagrams down to K ~18.5, for a sample of 13 globular clusters in the Large Magellanic Cloud. This data set combined with the previous sample of 6 clusters published by our…

Astrophysics · Physics 2008-11-26 A. Mucciarelli , L. Origlia , F. R. Ferraro , C. Maraston , V. Testa

Interstellar C IV absorption line studies of the hot gaseous halo of the Large Magellanic Cloud (LMC) have been hindered by non-ideal selections of early-type probe stars in regions where C+3 can be produced locally via photoionization,…

The most massive stars known to date are R 136 a1, a2, a3, and c within the central cluster R 136a of the Tarantula nebula in the Large Magellanic Cloud (LMC), with reported masses in excess of 150-200$M_\odot$. However, the mass estimation…

Solar and Stellar Astrophysics · Physics 2023-11-01 T. Shenar , H. Sana , P. A. Crowther , K. A. Bostroem , L. Mahy , F. Najarro , L. Oskinova , A. A. C. Sander

We analyse deep images from the VISTA survey of the Magellanic Clouds in the YJKs filters, covering 14 sqrdeg (10 tiles), split into 120 subregions, and comprising the main body and Wing of the Small Magellanic Cloud (SMC). We apply a…

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 present a new analysis of the properties of the young massive star clusters, which demonstrates that these objects are plausible progenitors of old globular clusters (GCs). The method is based on the tight relationship for old GCs…

Astrophysics · Physics 2009-11-11 R. de Grijs , M. I. Wilkinson , C. N. Tadhunter

The Magellanic Clouds are the most massive and closest satellite galaxies of the Milky Way, with stars covering ages from a few Myr up to 13 Gyr. This makes them important for validating integrated light methods to study stellar populations…

The cluster R136 in the LMC contains a population of stars in excess of 100 M$_\odot$, including R136a1, the most massive star known. Very Massive Stars (VMSs) play an influential role in feedback processes and may potentially produce…

Solar and Stellar Astrophysics · Physics 2025-08-20 Z. Keszthelyi , S. A. Brands , A. de Koter , N. Langer , J. Puls