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Two O2 If*/WN6 stars possibly ejected from the massive young Galactic cluster Westerlund 2
Stars: individual:WR20aa - Stars: individual:WR20c - Stars:Wolf-Rayet (Galaxy): open clusters and associations: individual:Westerlund 2
2011/10/19
In this paper we report the identification of two new Galactic O2 If*/WN6 stars (WR20aa and WR20c), in the outskirt of the massive young stellar cluster Westerlund 2. The morphological similarity betw...
A Search for Young Stars in the S0 Galaxies of a Super-Group at z=0.37
Search S0 Galaxies Super-Group z=0.37
2011/10/12
We analyze GALEX UV data for a system of four gravitationally-bound groups at z=0.37, SG1120, which is destined to merge into a Coma-mass cluster by z=0, to study how galaxy properties may change duri...
The non-segregated population of blue straggler stars in the remote globular cluster Palomar 14
non-segregated population straggler stars remote globular cluster
2011/9/27
We used deep wide-field observations obtained with the Canada-France-Hawaii Telescope to study the blue straggler star (BSS) population in the innermost five arcminutes of the remote Galactic globular...