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Related papers: Star Clusters in the Interacting Galaxy System Arp…

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We made a multi-wavelength study of young massive star clusters (YSCs) in the interacting galaxy ARP 24, using the optical and ultraviolet images from Hubble Space Telescope (HST), Sloan Digital Sky Survey, and Galaxy Evolution Explorer;…

Astrophysics · Physics 2009-11-11 Chen Cao , Hong Wu

We present optical spectroscopy of 16 star clusters in the merging galaxies NGC 4038/39 ("The Antennae") and supplement this dataset with HST imaging. The age and metallicity of each cluster is derived through a comparison between the…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 Nate Bastian , Gelys Trancho , Iraklis S. Konstantopoulos , Bryan W. Miller

Aims. We present a new technique to estimate the relative ages of multiple stellar populations hosted by five globular clusters: NGC 104 (47 Tuc), NGC 6121 (M4), NGC 6352, NGC 6362 and NGC 6723. Methods. We used the catalogs of the database…

Solar and Stellar Astrophysics · Physics 2021-02-17 F. Lucertini , D. Nardiello , G. Piotto

We present a study of the star cluster population in the starburst irregular galaxy NGC 4449 based on B, V, I, and Ha images taken with the Advanced Camera for Surveys on the Hubble Space Telescope. We derive the cluster properties such as…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Francesca Annibali , Monica Tosi , Alessandra Aloisi , Roeland P. van der Marel

Galaxy interactions are known to trigger starbursts. The young star clusters formed in mergers may be young globular clusters. The ages of these young star clusters yield the timing of interaction-triggered star formation and provide an…

Astrophysics · Physics 2009-11-13 Li-Hsin Chien , Joshua E. Barnes , Lisa J. Kewley , Kenneth C. Chambers

We study the stellar content in the tidal tails of three nearby merging galaxies, NGC 520, NGC 2623, and NGC 3256, using BVI imaging taken with the Advanced Camera for Surveys on board the Hubble Space Telescope. The tidal tails in all…

Astrophysics of Galaxies · Physics 2015-06-03 A. J. Mulia , R. Chandar , B. C. Whitmore

We present deep, photometrically calibrated BVRJHK images of the nearby interacting galaxy pair NGC 4038/39 (``The Antennae''). Color maps of the images are derived, and those using the B, V, and K-bands are analyzed with techniques…

Astrophysics · Physics 2009-05-13 Susan A. Kassin , Jay A. Frogel , Richard W. Pogge , Glenn P. Tiede , K. Sellgren

We present the first results of a new technique to detect, locate, and characterize young dissolving star clusters. Using HST/ACS archival images of the nearby galaxy IC2574, we performed stellar PSF photometry and selected the most massive…

Astrophysics · Physics 2009-12-04 Anne Pellerin , Martin J. Meyer , Jason Harris , Daniela Calzetti

We present a spectroscopic survey of 21 young massive clusters and complexes and one tidal dwarf galaxy candidate (TDG) in Stephan's Quintet, an interacting compact group of galaxies. All of the selected targets lie outside the main…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 G. Trancho , I. Konstantopoulos , N. Bastian , K. Fedotov , S. Gallagher , B. Mullan , J. Charlton

The post-starburst region B in M82 and its massive star cluster component have been the focus of multiple studies, with reports that there is a large population of coeval clusters of age ~1 Gyr, which were created with a Gaussian initial…

We report on the properties of 89 low mass star clusters located in the vicinity of luminous young clusters (blue globulars) in the disk of M31. 82 of the clusters are newly detected. We have determined their integrated magnitudes and…

Astrophysics of Galaxies · Physics 2015-05-13 P. W. Hodge , O. K. Krienke , M. Bellazzini , S. Perina , P. Barmby , J. G. Cohen , T. H. Puzia , J. Strader

The morphology of HII regions around young star clusters provides insight into the timescales and physical processes that clear a cluster's natal gas. We study ~700 young clusters (<10Myr) in three nearby spiral galaxies (NGC 7793, NGC…

We have investigated the starburst properties of the luminous blue compact galaxy ESO 185-IG13. The galaxy has been imaged with the high resolution cameras onboard to the Hubble Space Telescope. From the UV to the IR, the data reveal a…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Angela Adamo , Goeran Ostlin , Erik Zackrisson , Matthew Hayes

We study the stellar population of galaxies with active star formation, determining ages of the stellar components by means of spectral population synthesis of their absorption spectra. The data consist of optical spectra of 185 nearby ($z…

Astrophysics · Physics 2009-10-31 D. Raimann , E. Bica , T. Storchi-Bergmann , J. Melnick , H. Schmitt

Recent images taken with the Hubble Space Telescope (HST) of the interacting disk galaxies NGC 4038/4039 (the Antennae) reveal clusters of many dozens and possibly hundreds of young compact massive star clusters within projected regions…

Astrophysics · Physics 2009-10-30 Pavel Kroupa

Using recently acquired HST NIR observations (J, Pa$\beta$ and H bands) of the nearby galaxy NGC1313, we investigate the timescales required by a young star cluster to emerge from its natal cloud. We search for extincted star clusters,…

Astrophysics of Galaxies · Physics 2021-03-17 M. Messa , D. Calzetti , A. Adamo , K. Grasha , K. E. Johnson , E. Sabbi , L. J. Smith , V. Bajaj , M. K. Finn , Z. Lin

We present images of the recent galaxy merger NGC 3256 obtained with the WFPC2 of the Hubble Space Telescope in B and I filters. We show that there is a large population of more than 1,000 compact, bright blue objects in this galaxy within…

Astrophysics · Physics 2009-10-31 S. E. Zepf , K. M. Ashman , J. English , K. C. Freeman , R. M. Sharples

We present a detailed study of the star cluster population detected in the galaxy NGC922, one of the closest collisional ring galaxies known to date, using HST/WFPC2 UBVI photometry, population synthesis models, and N-body/SPH…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Anne Pellerin , Gerhardt R. Meurer , Kenji Bekki , Debra M. Elmegreen , O. Ivy Wong , Patricia M. Knezek

We present results from a photometric H-alpha survey of 22 nuclear rings, aiming to provide insight into their star formation properties, including age distribution, dynamical timescales, star formation rates, and galactic bar influence. We…

Astrophysics · Physics 2009-11-13 Lisa M. Mazzuca , Johan H. Knapen , Sylvain Veilleux , Michael W. Regan

With an apparent cluster diameter of 1.5{\deg} and an age of ~4 Myr, Trumpler 37 is an ideal target for photometric monitoring of young stars as well as for the search of planetary transits, eclipsing binaries and other sources of…