scholarly journals Accurate radial velocity and metallicity of the Large Magellanic Cloud old globular clusters NGC 1928 and NGC 1939

2018 ◽  
Vol 481 (1) ◽  
pp. 49-58 ◽  
Author(s):  
A E Piatti ◽  
N Hwang ◽  
A A Cole ◽  
M S Angelo ◽  
B Emptage
2018 ◽  
Vol 14 (S344) ◽  
pp. 114-117
Author(s):  
Andrés E. Piatti ◽  
Dougal Mackey

AbstractWe built the most extended stellar density and/or surface brightness radial profiles for 13 old Large Magellanic Cloud (LMC) globular clusters (GCs). The studied GCs located farther than ~ 5 kpc from the LMC center would not seem to present any hint of extended stellar structures, while those closer than ~ 5 kpc do show extended structures. Such an excess of stars tightly depends on the position of the GCs, so that the closer the GC to the LMC center, the larger the excess of stars. Furthermore, the GC radii also show a remarkable trend with the position of the GC in the LMC disc. These outcomes can be fully interpreted in the light of the known GC radial velocity disc-like kinematics, from which GCs have been somehow mostly experiencing the influence of the LMC gravitational field at their respective mean distances from the LMC center.


2012 ◽  
Vol 428 (3) ◽  
pp. 2185-2197 ◽  
Author(s):  
M. Marconi ◽  
R. Molinaro ◽  
V. Ripepi ◽  
I. Musella ◽  
E. Brocato

1995 ◽  
Vol 163 ◽  
pp. 251-253 ◽  
Author(s):  
V. S. Niemela ◽  
W. Seggewiss ◽  
A. F. J. Moffat

The bright star Sk—67°18 (Brey 5) in the Large Magellanic Cloud (LMC) contains an eclipsing binary system. Our radial velocity study reveals that the orbital period is almost exactly two days. The spectra also show that the star's primary component is not of spectral type WN, but that the star is rather an Of+O type binary where the primary is probably of type O3f*. Furthermore, Sk—67°18 appears to be a high-mass multiple system.


2011 ◽  
Vol 142 (4) ◽  
pp. 107 ◽  
Author(s):  
Charles A. Kuehn ◽  
Horace A. Smith ◽  
Márcio Catelan ◽  
Barton J. Pritzl ◽  
Nathan De Lee ◽  
...  

2010 ◽  
Vol 510 ◽  
pp. A19 ◽  
Author(s):  
M. Lyubenova ◽  
H. Kuntschner ◽  
M. Rejkuba ◽  
D. R. Silva ◽  
M. Kissler-Patig ◽  
...  

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