scholarly journals Theoretical fit of Cepheid light and radial velocity curves in the Large Magellanic Cloud cluster NGC 1866

2012 ◽  
Vol 428 (3) ◽  
pp. 2185-2197 ◽  
Author(s):  
M. Marconi ◽  
R. Molinaro ◽  
V. Ripepi ◽  
I. Musella ◽  
E. Brocato
Keyword(s):  
Radial Velocity ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Cloud Cluster

The Age of the Large Magellanic Cloud Cluster NGC 1651

1997 ◽  
Vol 483 (1) ◽  
pp. L41-L44 ◽  
Author(s):  
Jeremy R. Mould ◽  
Mingsheng Han ◽  
Peter B. Stetson ◽  
Brad Gibson ◽  
John A. Graham ◽  
...  
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Cloud Cluster

Cepheid Variables in the Large Magellanic Cloud Cluster NGC 1866. I. New BVRI CCD Photometry

2000 ◽  
Vol 129 (1) ◽  
pp. 111-121 ◽  
Author(s):  
Wolfgang P. Gieren ◽  
Matias Gomez ◽  
Jesper Storm ◽  
Thomas J. Moffett ◽  
L. Infante ◽  
...  
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Ccd Photometry ◽  
Cloud Cluster ◽  
Cepheid Variables

scholarly journals The multiple system Sk-67°18 in the LMC

1995 ◽  
Vol 163 ◽  
pp. 251-253 ◽  
Author(s):  
V. S. Niemela ◽  
W. Seggewiss ◽  
A. F. J. Moffat
Keyword(s):  
Binary System ◽  
Radial Velocity ◽  
Spectral Type ◽  
Orbital Period ◽  
Large Magellanic Cloud ◽  
Primary Component ◽  
Magellanic Cloud ◽  
Bright Star ◽  
High Mass ◽  
Eclipsing Binary

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.

The distance to the Large Magellanic Cloud cluster NGC 1866 from its Cepheid members

1994 ◽  
Vol 433 ◽  
pp. L73 ◽  
Author(s):  
Wolfgang P. Gieren ◽  
Tom Richtler ◽  
Michael Hilker
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Cloud Cluster

scholarly journals Observational hints of a real age spread in the young LMC star cluster NGC 1971

2017 ◽  
Vol 470 (1) ◽  
pp. L77-L81 ◽  
Author(s):  
Andrés E. Piatti ◽  
Andrew Cole
Keyword(s):  
Main Sequence ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Star Cluster ◽  
Stellar Rotation ◽  
Cloud Cluster ◽  
Magnitude Diagram ◽  
Observational Errors ◽  
Age Range

Abstract We report that the serendipitous young Large Magellanic Cloud cluster NGC 1971 exhibits an extended main-sequence turn-off (eMSTO) possibly originated mostly by a real age spread. We used CT1 Washington photometry to produce a colour–magnitude diagram (CMD) with the fiducial cluster features. From its eMSTO, we estimated an age spread of ∼170 Myr (observed age range 100–280 Myr), once observational errors, stellar binarity, overall metallicity variations and stellar rotation effects were subtracted in quadrature from the observed age width.

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