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Related papers: A Survey of Compact Star Clusters in the South-Wes…

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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

Context. When trying to derive the star cluster physical parameters of the M33 galaxy using broad-band unresolved ground-based photometry, previous studies mainly made use of simple stellar population models, shown in the recent years to be…

Astrophysics of Galaxies · Physics 2015-09-16 P. de Meulenaer , D. Narbutis , T. Mineikis , V. Vansevičius

We present the first detailed analysis of the East Cloud, a highly disrupted diffuse stellar substructure in the outer halo of M31. The core of the substructure lies at a projected distance of $\sim100$ kpc from the centre of M31 in the…

This study is the third of a series that investigates the degeneracy and stochasticity problems present in the determination of physical parameters such as age, mass, extinction, and metallicity of partially resolved or unresolved star…

Astrophysics of Galaxies · Physics 2015-02-18 Philippe de Meulenaer , Donatas Narbutis , Tadas Mineikis , Vladas Vansevičius

We present three new clusters discovered in the halo of M31 which, although having globular-like colours and luminosities,have an unusually large half-light radii, ~30 pc. They lie at projected galactocentric distances of approx. 15 to 35…

We trace the star formation regions in the SMC and study their properties. The size and spatial distribution of these regions is found to support the hierarchical scenario of star formation, whereas, the evaluation of their intensity,…

Astrophysics · Physics 2008-11-26 E. Livanou , I. Gonidakis , E. Kontizas , U. Klein , M. Kontizas , D. Kester , Y. Fukui , N. Mizuno , P. Tsalmantza

Using deep photometric data from WFC@INT and [email protected] we measure the outer number density profiles of 19 stellar clusters located in the inner region of the Milky Way halo (within a Galactocentric distance range of 10-30 kpc) in order to…

We present a catalog of star clusters with V_{F555W}<23 mag detected in the interacting spiral galaxy M51 system based on the mosaic images taken with HST ACS by the Hubble Heritage Team. We have selected about 3,600 clusters based on their…

Astrophysics · Physics 2008-03-18 Narae Hwang , Myung Gyoon Lee

We present the largest and most detailed survey to date of the stellar populations in the outskirts of M31 based on the analysis of 14 deep HST/ACS pointings spanning the range 11.5-45.0 kpc. We conduct a quantitative comparison of the…

We report the discovery of 25 new open clusters resulting from a search in dense low galactic latitude fields. We also provide, for the first time, structural and astrophysical parameters for the new findings and 34 other recently…

Solar and Stellar Astrophysics · Physics 2020-06-24 Filipe A. Ferreira , J. F. C. Santos , W. J. B. Corradi , F. F. S. Maia , M. S. Angelo

Recent results from Hubble Space Telescope (HST) have resolved starbursts as collections of compact young stellar clusters. Here we present a photometric catalogue of the young stellar clusters in the nuclear starburst of M82, observed with…

Astrophysics · Physics 2016-08-16 V. P. Melo , C. Muñoz-Tuñón , J. Maíz-Apellániz , G. Tenorio-Tagle

We have identified a small globular cluster in M31 located approximately 4 arcseconds northwest of the M31 globular cluster G185. While several multiple globular clusters have been observed in the Magellanic Clouds none have been found in…

Astrophysics · Physics 2009-10-28 Stephen Holland , Gregory G. Fahlman , Harvey B. Richer

Using hard (E>10 keV) X-ray observations with NuSTAR, we are able to differentiate between accretion states, and thus compact object types, of neutron stars and black holes in X-ray binaries (XRBs) in M31, our nearest Milky Way-type…

The main goal of this study is to compile a catalogue including the fundamental parameters of a complete sample of 277 star clusters (SCs) of the Large Magellanic Cloud (LMC) observed in the Washington photometric system, including 82…

Solar and Stellar Astrophysics · Physics 2016-01-27 Tali Palma , Luciana V. Gramajo , Juan J. Clariá , Marcelo Lares , Doug Geisler , Andrea V. Ahumada

We present detailed chemical abundances for $>$20 elements in $\sim$30 globular clusters in M31. These results have been obtained using high resolution ($\lambda/\Delta\lambda\sim$24,000) spectra of their integrated light and analyzed using…

Astrophysics of Galaxies · Physics 2022-10-26 J. E. Colucci , R. A. Bernstein , J. Cohen

We present an updated UBVRI photometric catalog containing 970 objects in the field of M31, selected from the Revised Bologna Catalog (RBC v.4.0), including 965, 967, 965, 953, and 827 sources in the individual UBVRI bands, respectively, of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Zhou Fan , Richard de Grijs , Xu Zhou

We use high-resolution Hubble Space Telescope imaging data of dwarf galaxies in the Local Volume ($\lesssim 11$ Mpc) to parameterise 19 newly discovered nuclear star clusters (NSCs). Most of the clusters have stellar masses of…

Astrophysics of Galaxies · Physics 2023-02-01 Nils Hoyer , Nadine Neumayer , Anil C. Seth , Iskren Y. Georgiev , Jenny E. Greene

Star clusters are good tracers for formation and evolution of galaxies. We compared different fitting methods by using spectra (or by combining photometry) to determine the physical parameters. We choose a sample of 17 star clusters in M33,…

Astrophysics of Galaxies · Physics 2020-11-18 Zhou Fan , Bingqiu Chen , Xiaoying Pang , Juanjuan Ren , Song Wang , Jing Wang , Kefeng Tan , Nan Song , Chun Li , Jie Zheng , Gang Zhao

We analyzed HST/WFPC2 colour-magnitude diagrams (CMDs) of 15 populous Large Magellanic Cloud (LMC) stellar clusters with ages between ~ 0.3 Gyr and ~ 3 Gyr. These (V, B-V) CMDs are photometrically homogeneous and typically reach V \~ 22.…

Astrophysics · Physics 2009-11-11 L. O. Kerber , B. X. Santiago , E. Brocato

We present a photometric catalogue of star cluster candidates in Hickson compact groups (HCGs) 7, 31, 42, 59, and 92, based on observations with the Advanced Camera for Surveys and the Wide Field Camera 3 on the Hubble Space Telescope. The…

Astrophysics of Galaxies · Physics 2015-06-24 K. Fedotov , S. C. Gallagher , P. R. Durrell , N. Bastian , I. S. Konstantopoulos , J. Charlton , K. E. Johnson , R. Chandar