Hubble space telescope observations of young star clusters in NGC-4038/4039, 'the antennae' galaxies

1995 ◽  
Vol 109 ◽  
pp. 960 ◽  
Author(s):  
Bradley C. Whitmore ◽  
Francois Schweizer
2016 ◽  
Vol 458 (1) ◽  
pp. 624-659 ◽  
Author(s):  
Paul A. Crowther ◽  
S. M. Caballero-Nieves ◽  
K. A. Bostroem ◽  
J. Maíz Apellániz ◽  
F. R. N. Schneider ◽  
...  

2005 ◽  
Vol 130 (5) ◽  
pp. 2104-2116 ◽  
Author(s):  
Bradley C. Whitmore ◽  
Diane Gilmore ◽  
C. Leitherer ◽  
S. Michael Fall ◽  
Rupali Chandar ◽  
...  

2008 ◽  
Vol 4 (S255) ◽  
pp. 157-161 ◽  
Author(s):  
Elena Sabbi ◽  
Linda J. Smith ◽  
Lynn R. Carlson ◽  
Antonella Nota ◽  
Monca Tosi ◽  
...  

AbstractWe compared deep images acquired with the Advanced Camera for Surveys on board of the Hubble Space Telescope with mid-IR Spitzer Space Telescope images and University College London Echelle Spectrograph spectra of NGC 346 and NGC 602, two of the youngest star clusters in the Small Magellanic Cloud. Our multi-wavelength approach allowed us to infer very different origins for the clusters: while NGC 346 is likely the result of the hierarchical collapse of a giant molecular cloud, NGC 602 is probably the result of the collision and consequent interaction of two H I shells of gas.


2015 ◽  
Vol 12 (S316) ◽  
pp. 55-60
Author(s):  
Peter Zeidler ◽  
Antonella Nota ◽  
Elena Sabbi ◽  
Eva K. Grebel ◽  
Monica Tosi ◽  
...  

AbstractWesterlund 2 (Wd2) is one of the most massive young star clusters known in the Milky Way. The close proximity (4.16 kpc) to the Sun, and the young age (2.0 Myr) allow us to study star formation in detail at a high spatial resolution. We present results from our recent deep multi-band survey in the optical and near-infrared obtained with the Hubble Space Telescope. We demonstrated that, as expected, the region is affected by significant differential reddening with a median value of E(B − V)g = 1.87 mag. The distance was inferred from the dereddened color-magnitude diagrams using Padova isochrones. Analyzing the spatial distribution of stars we found that Wd2 consists of two sub-clumps, namely the main cluster of Westerlund 2 and a less well populated clump located to the North. We estimated the same age of 0.1–2.0 Myr for both sub-clumps, thus we conclude that they are likely coeval.


2008 ◽  
Vol 385 (2) ◽  
pp. 929-938 ◽  
Author(s):  
Vasilii V. Gvaramadze ◽  
Alessia Gualandris ◽  
Simon Portegies Zwart

2008 ◽  
Vol 489 (3) ◽  
pp. 1091-1105 ◽  
Author(s):  
S. Mengel ◽  
M. D. Lehnert ◽  
N. A. Thatte ◽  
W. D. Vacca ◽  
B. Whitmore ◽  
...  

2008 ◽  
Vol 389 (1) ◽  
pp. 429-440 ◽  
Author(s):  
Andrés E. Piatti ◽  
Doug Geisler ◽  
Ata Sarajedini ◽  
Carme Gallart ◽  
Marina Wischnjewsky

2003 ◽  
Vol 598 (2) ◽  
pp. 1000-1004 ◽  
Author(s):  
Letizia Stanghellini ◽  
Eva Villaver ◽  
Richard A. Shaw ◽  
Max Mutchler

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