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Related papers: A Catalog of New M33 Star Clusters Based on the HS…

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We present the catalog of star clusters found in the area of about 5.8 square degree in the central regions of the Large Magellanic Cloud. It contains data for 745 clusters. 126 of them are new objects. For each cluster equatorial…

Astrophysics · Physics 2007-05-23 G. Pietrzynski , A. Udalski , M. Kubiak , M. Szymanski , P. Wozniak , K. Zebrun

We present the result of a detailed analysis of HST UV and optical deep images of the massive and young (~1.5 Gyr) stellar cluster NGC 1783 in the Large Magellanic Cloud. This system does not show evidences of multiple populations (MPs)…

Astrophysics of Galaxies · Physics 2022-01-12 M. Cadelano , E. Dalessandro , M. Salaris , N. Bastian , A. Mucciarelli , S. Saracino , S. Martocchia , I. Cabrera-Ziri

We present a HST multiband analysis of the large population of star clusters in the blue compact galaxy (BCG) Mrk 930. We have reconstructed the spectral energy distributions of the star clusters and estimated age, mass, and extinction for…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 A. Adamo , G. Ostlin , E. Zackrisson , P. Papaderos , N. Bergvall , R. M. Rich , G. Micheva

In this third paper of our series, we present CCD spectrophotometry of 78 star clusters that were detected by Chandar, Bianchi, & Ford in the nearby spiral galaxy M33. CCD images of M33 were obtained as a part of the BATC Color Survey of…

Astrophysics · Physics 2009-11-07 Jun Ma , Xu Zhou , Jiansheng Chen , Hong Wu , Zhaoji Jiang , Suijian Xue , Jin Zhu

We exploit the superb resolution of the new HST/ACS mosaic image of M51 to select a large sample of young (< 1 Gyr) star clusters in the spiral disk, based on their sizes. The image covers the entire spiral disk in B, V, I and H_alpha, at a…

We have combined existing optical magnitudes for stars in seven open clusters and 54 field stars with the corresponding JHKs photometry from the Two Micron All Sky Survey (2MASS). Combining optical with near-IR photometry broadens the color…

Astrophysics · Physics 2009-11-10 Ata Sarajedini , Ken Brandt , Aaron Grocholski , Glenn Tiede

In this work we estimate, for the first time, the total masses and mass function slopes of a sample of 29 young and intermediate-age SMC clusters from CCD Washington photometry. We also derive age, interstellar reddening and structural…

Astrophysics of Galaxies · Physics 2015-06-17 F. F. S. Maia , A. E. Piatti , J. F. C. Santos

We present an analysis of the deepest pure-UV observations with the highest angular resolution ever performed, a set of 12 exposures with the HST WFPC2 and F160BW filter obtained in parallel observing mode, which cover $\sim$12 square…

Astrophysics · Physics 2009-10-30 Noah Brosch , Michael Shara , John MacKenty , David Zurek , Brian McLean

Aims. Filamentary structures of early type stars are found to be a common feature of the Magellanic Clouds formed at an age of about 0.9-2*10^8 yr. As we go to younger ages these large structures appear fragmented and sooner or later form…

To enlarge our growing sample of well-studied star clusters in the Large Magellanic Cloud (LMC), we present CCD Washington CT1 photometry to T1 ~ 23 in the fields of twenty-three mostly unstudied clusters located in the inner disc and outer…

Astrophysics of Galaxies · Physics 2015-06-16 Tali Palma , Juan J. Clariá , Doug Geisler , Andrés E. Piatti , Andrea V. Ahumada

In this paper we present the V and I luminosity functions and color-magnitude diagrams derived from wide-field (23 arcmin by 23 arcmin) BVI photometry of the intermediate metallicity ([Fe/H]=-1.3) Galactic globular cluster M12. Using…

Astrophysics · Physics 2009-11-10 Jonathan R. Hargis , Eric L. Sandquist , Michael Bolte

We present an analysis of high-resolution optical spectra recorded for 30 stars of the split extended main-sequence turnoff (eMSTO) of the young ($\sim$ 40 Myr) Small Magellanic Cloud (SMC) globular cluster NGC 330. Spectra were obtained…

Solar and Stellar Astrophysics · Physics 2024-06-18 Paul I. Cristofari , Andrea K. Dupree , Antonino P. Milone , Matthew G. Walker , Mario Mateo , Aaron Dotter , John I. Bailey

It has long been known that the post-core-collapse globular cluster M30 has a bluer-inward color gradient, and recent work suggests that the central deficiency of bright red giants does not fully account for this gradient. This study uses…

Astrophysics · Physics 2009-10-31 Justin H. Howell , Puragra Guhathakurta , Amy Tan

The upper region of the Hertzsprung-Russell diagram is populated by massive stars in a diversity of evolutionary stages, and the classification of these stars is often based on observed characteristics exclusively in the optical spectral…

Solar and Stellar Astrophysics · Physics 2025-07-28 Michaela Kraus , Maria Laura Arias , Michalis Kourniotis , Andrea Torres , Lydia S. Cidale , Marcelo Borges Fernandes

Detailed studies of intermediate/low mass pre-main sequence (PMS) stars outside the Galaxy have so far been conducted only for small targeted regions harbouring known star formation complexes. The VISTA Survey of the Magellanic Clouds (VMC)…

This paper is the fourth in a series presenting spectrophotometry of 51 globular cluster candidates, that were detected by Mochejska et al. in the nearby galaxy M33 using the data collected by the DIRECT project. The frames of M33 in this…

Astrophysics · Physics 2007-05-23 Jun Ma , Xu Zhou , Jiansheng Chen , Hong Wu , Xu Kong , Zhaoji Jiang , Suijian Xue , Jin Zhu

[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 a photometric catalog of 45 massive star clusters in the nuclear starburst of M 83 (NGC 5236), observed with the Hubble Space Telescope WFPC2, in both broad-band (F300W, F547M, and F814W) and narrow-band (F656N and F487N)…

Astrophysics · Physics 2009-11-07 J. Harris , D. Calzetti , J. S. Gallagher , C. J. Conselice , D. A. Smith

Using PHANGS-HST NUV-U-B-V-I imaging of 17 nearby spiral galaxies, we study samples of star clusters and stellar associations, visually selected to be bright and relatively isolated, for three purposes: to compute aperture corrections for…

Star clusters in 6 nearby spiral galaxies are examined using archive images from HST/WFPC2. The galaxies have previously been studied from the ground and some of them are known to possess rich populations of "young massive clusters" (YMCs).…

Astrophysics · Physics 2009-11-07 Soeren S. Larsen
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