scholarly journals Hubble Space TelescopeObservations of Three Very Young Star Clusters in the Small Magellanic Cloud

2003 ◽  
Vol 598 (2) ◽  
pp. 1000-1004 ◽  
Author(s):  
Letizia Stanghellini ◽  
Eva Villaver ◽  
Richard A. Shaw ◽  
Max Mutchler
Keyword(s):  
Star Clusters ◽  
Young Star ◽  
Magellanic Cloud ◽  
Small Magellanic Cloud ◽  
Young Star Clusters

scholarly journals Seven young star clusters in the inner region of the Small Magellanic Cloud

2008 ◽  
Vol 389 (1) ◽  
pp. 429-440 ◽  
Author(s):  
Andrés E. Piatti ◽  
Doug Geisler ◽  
Ata Sarajedini ◽  
Carme Gallart ◽  
Marina Wischnjewsky
Keyword(s):  
Star Clusters ◽  
Young Star ◽  
Magellanic Cloud ◽  
Small Magellanic Cloud ◽  
Inner Region ◽  
Young Star Clusters

scholarly journals Young star clusters immersed in intermediate-age fields in the Small Magellanic Cloud

2007 ◽  
Vol 377 (1) ◽  
pp. 300-316 ◽  
Author(s):  
A. E. Piatti ◽  
A. Sarajedini ◽  
D. Geisler ◽  
D. Clark ◽  
J. Seguel
Keyword(s):  
Star Clusters ◽  
Young Star ◽  
Magellanic Cloud ◽  
Small Magellanic Cloud ◽  
Young Star Clusters

scholarly journals Five young star clusters in the outer region of the Small Magellanic Cloud

2007 ◽  
Vol 382 (3) ◽  
pp. 1203-1212 ◽  
Author(s):  
Andrés E. Piatti ◽  
Ata Sarajedini ◽  
Doug Geisler ◽  
Carme Gallart ◽  
Marina Wischnjewsky
Keyword(s):  
Outer Region ◽  
Star Clusters ◽  
Young Star ◽  
Magellanic Cloud ◽  
Small Magellanic Cloud ◽  
Young Star Clusters

The structure of young star clusters in the Large Magellanic Cloud

1987 ◽  
Vol 323 ◽  
pp. 54 ◽  
Author(s):  
Rebecca A. W. Elson ◽  
S. Michael Fall ◽  
Kenneth C. Freeman
Keyword(s):  
Star Clusters ◽  
Large Magellanic Cloud ◽  
Young Star ◽  
Magellanic Cloud ◽  
Young Star Clusters

The internal velocity dispersions of three young star clusters in the Large Magellanic Cloud

1989 ◽  
Vol 347 ◽  
pp. 201 ◽  
Author(s):  
Robert H. Lupton ◽  
S. Michael Fall ◽  
Kenneth C. Freeman ◽  
Rebecca A. W. Elson
Keyword(s):  
Star Clusters ◽  
Large Magellanic Cloud ◽  
Young Star ◽  
Magellanic Cloud ◽  
Velocity Dispersions ◽  
Internal Velocity ◽  
Young Star Clusters

Core expansion in young star clusters in the Large Magellanic Cloud

1989 ◽  
Vol 347 ◽  
pp. L69 ◽  
Author(s):  
Rebecca A. W. Elson ◽  
Kenneth C. Freeman ◽  
Tod R. Lauer
Keyword(s):  
Star Clusters ◽  
Large Magellanic Cloud ◽  
Young Star ◽  
Magellanic Cloud ◽  
Young Star Clusters

scholarly journals Multiple populations of Hβ emission line stars in the Large Magellanic Cloud cluster NGC 1971

2020 ◽  
Vol 644 ◽  
pp. A98
Author(s):  
Andrés E. Piatti
Keyword(s):  
Emission Line ◽  
Star Clusters ◽  
Large Magellanic Cloud ◽  
Young Star ◽  
Magellanic Cloud ◽  
Observational Result ◽  
Be Stars ◽  
Membership Probability ◽  
Element Abundances ◽  
Young Star Clusters

We revisited the young Large Magellanic Cloud star cluster NGC 1971 with the aim of providing additional clues to our understanding of its observed extended main-sequence turnoff (eMSTO), a feature commonly seen in young star clusters that has recently been argued to be caused by a real age spread similar to the cluster age (∼160 Myr). We combined accurate Washington and Strömgren photometry of stars with high membership probability to explore the nature of this eMSTO. From different ad hoc defined pseudo-colors, we found that bluer and redder stars distributed throughout the eMSTO do not show any inhomogeneities of light- and heavy-element abundances. These blue and red stars are split into two clearly different groups only when the Washington M magnitudes are employed, which delimites the number of spectral features that cause the appearance of the eMSTO. We speculate that Be stars populate the eMSTO of NGC 1971 because (i) Hβ contributes to the M passband, (ii) Hβ emissions are common features of Be stars, and (iii) the Washington M and T1 magnitudes are tightly correlated; the latter measuring the observed contribution of Hα emission line in Be stars, which is in turn correlated with Hβ emissions. This is the first observational result to our knowledge that indicates that Hβ emissions are the origin of eMSTOs observed in young star clusters. Our results certainly open new possibilities of studying eMSTO from photometric systems with passbands centered at features commonly seen in Be stars.

scholarly journals Young star clusters in the Large Magellanic Cloud: NGC 1805 and 1818

2001 ◽  
Vol 324 (2) ◽  
pp. 367-380 ◽  
Author(s):  
R. A. Johnson ◽  
S. F. Beaulieu ◽  
G. F. Gilmore ◽  
J. Hurley ◽  
B. X. Santiago ◽  
...  
Keyword(s):  
Star Clusters ◽  
Large Magellanic Cloud ◽  
Young Star ◽  
Magellanic Cloud ◽  
Young Star Clusters

scholarly journals Young Star Clusters in the Small Magellanic Cloud: Impact of Local and Global Conditions on Star Formation

2008 ◽  
Vol 4 (S255) ◽  
pp. 157-161 ◽  
Author(s):  
Elena Sabbi ◽  
Linda J. Smith ◽  
Lynn R. Carlson ◽  
Antonella Nota ◽  
Monca Tosi ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Star Clusters ◽  
Young Star ◽  
Magellanic Cloud ◽  
Small Magellanic Cloud ◽  
Echelle Spectrograph ◽  
Space Telescope ◽  
Multi Wavelength ◽  
University College London ◽  
Advanced Camera For Surveys

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.

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