2.1k citations · 10.1k across the 153 of their papers we have counts for
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On the velocity dispersion of young star clusters: super-virial or binaries?
M. Gieles, H. Sana, S. F. Portegies Zwart
Many young extra-galactic clusters have a measured velocity dispersion that is too high for the mass derived from their age and total luminosity, which has led to the suggestion th…
Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. II. Ages, metallicities, detailed elemental abundances, and connections to the Galactic thick disc
T. Bensby, S. Feltzing, J. A. Johnson +13
The Bulge is the least understood major stellar population of the Milky Way. Most of what we know about the formation and evolution of the Bulge comes from bright giant stars. The…
The VLT-FLAMES Tarantula Survey
C. J. Evans, N. Bastian, Y. Beletsky +28
The Tarantula Survey is an ambitious ESO Large Programme that has obtained multi-epoch spectroscopy of over 1,000 massive stars in the 30 Doradus region of the Large Magellanic Clo…
The massive star binary fraction in young open clusters - II. NGC 6611 (Eagle Nebula)
H. Sana, E. Gosset, C. J. Evans
Based on a set of over 100 medium- to high-resolution optical spectra collected from 2003 to 2009, we investigate the properties of the O-type star population in NGC6611 in the cor…
Elemental abundances in the Galactic bulge from microlensed dwarf stars
T. Bensby, S. Feltzing, J. A. Johnson +11
We present elemental abundances of 13 microlensed dwarf and subgiant stars in the Galactic bulge, which constitute the largest sample to date. We show that these stars span the ful…
The place of interferometry in massive star multiplicity sudies
H. Sana, J. -B. Le Bouquin
While it is well known that most massive stars are found to be part of binary or multiple systems, an accurate characterization of the statistical properties of these multiple obje…