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Early-type stars in the core of the young open cluster Westerlund2
G. Rauw, J. Manfroid, E. Gosset +5
Aims. The properties of the early-type stars in the core of the Westerlund2 cluster are examined in order to establish a link between the cluster and the very massive Wolf-Rayet bi…
Towards an understanding of the Of?p star HD191612: Phase-resolved multiwavelength observations
Yael Naze, Gregor Rauw, A. M. T. Pollock +2
We present the analysis of phase-resolved X-ray and optical observations of the peculiar hot star HD191612 (Of?p). This star is known to display line-profile variations that are re…
The first orbital solution for the massive colliding-wind binary HD93162 (=WR25)
R. Gamen, E. Gosset, N. Morrell +6
Since the discovery, with the EINSTEIN satellite, of strong X-ray emission associated with HD93162 (=WR25), this object has been predicted to be a colliding-wind binary system. How…
An XMM-Newton view of the young open cluster NGC 6231 -- II. The OB star population
H. Sana, G. Rauw, Y. Naze +2
In this second paper, we pursue the analysis of the 180 ks XMM-Newton campaign towards the young open cluster NGC 6231 and we focus on its rich OB star population. We present a lit…
Spectroscopy of Massive Stars
Yael Naze
Although rare, massive stars, being the main sources of ionizing radiation, chemical enrichment and mechanical energy in the Galaxy, are the most important objects of the stellar p…